def __init__(self, options: Options,
status_file: str,
timeout: Optional[int] = None) -> None:
"""Initialize the server with the desired mypy flags."""
self.options = options
# Snapshot the options info before we muck with it, to detect changes
self.options_snapshot = options.snapshot()
self.timeout = timeout
self.fine_grained_manager = None # type: Optional[FineGrainedBuildManager]
if os.path.isfile(status_file):
os.unlink(status_file)
self.fscache = FileSystemCache()
options.incremental = True
options.fine_grained_incremental = True
options.show_traceback = True
if options.use_fine_grained_cache:
# Using fine_grained_cache implies generating and caring
# about the fine grained cache
options.cache_fine_grained = True
else:
options.cache_dir = os.devnull
# Fine-grained incremental doesn't support general partial types
# (details in https://github.com/python/mypy/issues/4492)
options.local_partial_types = True
self.status_file = status_file
def parse_options(self, program_text: str, testcase: DataDrivenTestCase,
incremental_step: int) -> Options:
options = Options()
flags = re.search('# flags: (.*)$', program_text, flags=re.MULTILINE)
if incremental_step > 1:
flags2 = re.search('# flags{}: (.*)$'.format(incremental_step), program_text,
flags=re.MULTILINE)
if flags2:
flags = flags2
flag_list = None
if flags:
flag_list = flags.group(1).split()
targets, options = process_options(flag_list, require_targets=False)
if targets:
raise RuntimeError('Specifying targets via the flags pragma is not supported.')
else:
options = Options()
# Allow custom python version to override testcase_pyversion
if (not flag_list or
all(flag not in flag_list for flag in ['--python-version', '-2', '--py2'])):
options.python_version = testcase_pyversion(testcase.file, testcase.name)
options.use_builtins_fixtures = True
options.show_traceback = True
options.incremental = True
return options
def parse_options(self, program_text: str, testcase: DataDrivenTestCase,
incremental_step: int) -> Options:
options = Options()
flags = re.search('# flags: (.*)$', program_text, flags=re.MULTILINE)
if incremental_step > 1:
flags2 = re.search('# flags{}: (.*)$'.format(incremental_step),
program_text,
flags=re.MULTILINE)
if flags2:
flags = flags2
flag_list = None
if flags:
flag_list = flags.group(1).split()
targets, options = process_options(flag_list,
require_targets=False)
if targets:
raise RuntimeError(
'Specifying targets via the flags pragma is not supported.'
)
else:
options = Options()
# Allow custom python version to override testcase_pyversion
if (not flag_list
or all(flag not in flag_list
for flag in ['--python-version', '-2', '--py2'])):
options.python_version = testcase_pyversion(
testcase.file, testcase.name)
options.use_builtins_fixtures = True
options.show_traceback = True
options.incremental = True
return options
def __init__(self,
options: Options,
timeout: Optional[int] = None) -> None:
"""Initialize the server with the desired mypy flags."""
self.options = options
# Snapshot the options info before we muck with it, to detect changes
self.options_snapshot = options.snapshot()
self.timeout = timeout
self.fine_grained_manager = None # type: Optional[FineGrainedBuildManager]
if os.path.isfile(STATUS_FILE):
os.unlink(STATUS_FILE)
self.fscache = FileSystemCache()
options.incremental = True
options.fine_grained_incremental = True
options.show_traceback = True
if options.use_fine_grained_cache:
# Using fine_grained_cache implies generating and caring
# about the fine grained cache
options.cache_fine_grained = True
else:
options.cache_dir = os.devnull
# Fine-grained incremental doesn't support general partial types
# (details in https://github.com/python/mypy/issues/4492)
options.local_partial_types = True
def __init__(self,
options: Options,
status_file: str,
timeout: Optional[int] = None) -> None:
"""Initialize the server with the desired mypy flags."""
self.options = options
# Snapshot the options info before we muck with it, to detect changes
self.options_snapshot = options.snapshot()
self.timeout = timeout
self.fine_grained_manager = None # type: Optional[FineGrainedBuildManager]
if os.path.isfile(status_file):
os.unlink(status_file)
self.fscache = FileSystemCache()
options.raise_exceptions = True
options.incremental = True
options.fine_grained_incremental = True
options.show_traceback = True
if options.use_fine_grained_cache:
# Using fine_grained_cache implies generating and caring
# about the fine grained cache
options.cache_fine_grained = True
else:
options.cache_dir = os.devnull
# Fine-grained incremental doesn't support general partial types
# (details in https://github.com/python/mypy/issues/4492)
options.local_partial_types = True
self.status_file = status_file
# Since the object is created in the parent process we can check
# the output terminal options here.
self.formatter = FancyFormatter(sys.stdout, sys.stderr,
options.show_error_codes)
def __init__(self,
options: Options,
timeout: Optional[int] = None,
alt_lib_path: Optional[str] = None) -> None:
"""Initialize the server with the desired mypy flags."""
self.options = options
self.timeout = timeout
self.alt_lib_path = alt_lib_path
self.fine_grained_manager = None # type: Optional[FineGrainedBuildManager]
if os.path.isfile(STATUS_FILE):
os.unlink(STATUS_FILE)
self.fscache = FileSystemCache(self.options.python_version)
options.incremental = True
options.fine_grained_incremental = True
options.show_traceback = True
if options.use_fine_grained_cache:
options.cache_fine_grained = True # set this so that cache options match
else:
options.cache_dir = os.devnull
# Fine-grained incremental doesn't support general partial types
# (details in https://github.com/python/mypy/issues/4492)
options.local_partial_types = True
def mypy_options(stubgen_options: Options) -> MypyOptions:
"""Generate mypy options using the flag passed by user."""
options = MypyOptions()
options.follow_imports = 'skip'
options.incremental = False
options.ignore_errors = True
options.semantic_analysis_only = True
options.python_version = stubgen_options.pyversion
return options
def build_dir(target_dir: str) -> Tuple[List[str], BuildManager, Graph]:
sources = expand_dir(target_dir)
options = Options()
options.incremental = True
options.show_traceback = True
options.cache_dir = os.devnull
try:
result = build.build(sources=sources,
options=options)
except CompileError as e:
# TODO: We need a manager and a graph in this case as well
assert False, str('\n'.join(e.messages))
return e.messages, None, None
return result.errors, result.manager, result.graph
def build(self, source: str) -> Tuple[List[str], Optional[BuildManager], Dict[str, State]]:
options = Options()
options.incremental = True
options.use_builtins_fixtures = True
options.show_traceback = True
main_path = os.path.join(test_temp_dir, 'main')
with open(main_path, 'w') as f:
f.write(source)
try:
result = build.build(sources=[BuildSource(main_path, None, None)],
options=options,
alt_lib_path=test_temp_dir)
except CompileError as e:
# TODO: Is it okay to return None?
return e.messages, None, {}
return result.errors, result.manager, result.graph
def main(args: List[str]) -> Iterator[Error]:
if len(args) == 1:
print('must provide at least one module to test')
sys.exit(1)
else:
modules = args[1:]
options = Options()
options.incremental = False
data_dir = default_data_dir()
search_path = compute_search_paths([], options, data_dir)
find_module_cache = FindModuleCache(search_path)
for module in modules:
for error in test_stub(options, find_module_cache, module):
yield error
def build(self, source: str) -> Tuple[List[str], Optional[BuildManager], Dict[str, State]]:
options = Options()
options.incremental = True
options.use_builtins_fixtures = True
options.show_traceback = True
main_path = os.path.join(test_temp_dir, 'main')
with open(main_path, 'w') as f:
f.write(source)
try:
result = build.build(sources=[BuildSource(main_path, None, None)],
options=options,
alt_lib_path=test_temp_dir)
except CompileError as e:
# TODO: Is it okay to return None?
return e.messages, None, {}
return result.errors, result.manager, result.graph
def build(self, source: str) -> Tuple[List[str], BuildManager, Graph]:
options = Options()
options.incremental = True
options.use_builtins_fixtures = True
options.show_traceback = True
main_path = os.path.join(test_temp_dir, 'main')
with open(main_path, 'w') as f:
f.write(source)
try:
result = build.build(sources=[BuildSource(main_path, None, None)],
options=options,
alt_lib_path=test_temp_dir)
except CompileError as e:
# TODO: We need a manager and a graph in this case as well
assert False, str('\n'.join(e.messages))
return e.messages, None, None
return result.errors, result.manager, result.graph
def build(self, source: str) -> Optional[BuildResult]:
options = Options()
options.incremental = True
options.fine_grained_incremental = True
options.use_builtins_fixtures = True
options.show_traceback = True
options.python_version = PYTHON3_VERSION
main_path = os.path.join(test_temp_dir, 'main')
with open(main_path, 'w', encoding='utf8') as f:
f.write(source)
try:
result = build.build(sources=[BuildSource(main_path, None, None)],
options=options,
alt_lib_path=test_temp_dir)
except CompileError:
# TODO: Is it okay to return None?
return None
return result
def build(self, source: str) -> Optional[BuildResult]:
options = Options()
options.incremental = True
options.fine_grained_incremental = True
options.use_builtins_fixtures = True
options.show_traceback = True
options.python_version = PYTHON3_VERSION
main_path = os.path.join(test_temp_dir, 'main')
with open(main_path, 'w') as f:
f.write(source)
try:
result = build.build(sources=[BuildSource(main_path, None, None)],
options=options,
alt_lib_path=test_temp_dir)
except CompileError as e:
# TODO: Is it okay to return None?
return None
return result
def __init__(self, options: Options,
timeout: Optional[int] = None,
alt_lib_path: Optional[str] = None) -> None:
"""Initialize the server with the desired mypy flags."""
self.options = options
self.timeout = timeout
self.alt_lib_path = alt_lib_path
self.fine_grained_manager = None # type: Optional[FineGrainedBuildManager]
if os.path.isfile(STATUS_FILE):
os.unlink(STATUS_FILE)
options.incremental = True
options.fine_grained_incremental = True
options.show_traceback = True
if options.use_fine_grained_cache:
options.cache_fine_grained = True # set this so that cache options match
else:
options.cache_dir = os.devnull
# Fine-grained incremental doesn't support general partial types
# (details in https://github.com/python/mypy/issues/4492)
options.local_partial_types = True
def process_options(
args: List[str],
require_targets: bool = True,
server_options: bool = False,
) -> Tuple[List[BuildSource], Options]:
"""Parse command line arguments."""
parser = argparse.ArgumentParser(prog='mypy',
epilog=FOOTER,
fromfile_prefix_chars='@',
formatter_class=AugmentedHelpFormatter)
strict_flag_names = [] # type: List[str]
strict_flag_assignments = [] # type: List[Tuple[str, bool]]
def add_invertible_flag(flag: str,
*,
inverse: Optional[str] = None,
default: bool,
dest: Optional[str] = None,
help: str,
strict_flag: bool = False) -> None:
if inverse is None:
inverse = invert_flag_name(flag)
if help is not argparse.SUPPRESS:
help += " (inverse: {})".format(inverse)
arg = parser.add_argument(
flag, # type: ignore # incorrect stub for add_argument
action='store_false' if default else 'store_true',
dest=dest,
help=help)
dest = arg.dest
arg = parser.add_argument(
inverse, # type: ignore # incorrect stub for add_argument
action='store_true' if default else 'store_false',
dest=dest,
help=argparse.SUPPRESS)
if strict_flag:
assert dest is not None
strict_flag_names.append(flag)
strict_flag_assignments.append((dest, not default))
# Unless otherwise specified, arguments will be parsed directly onto an
# Options object. Options that require further processing should have
# their `dest` prefixed with `special-opts:`, which will cause them to be
# parsed into the separate special_opts namespace object.
parser.add_argument('-v',
'--verbose',
action='count',
dest='verbosity',
help="more verbose messages")
parser.add_argument('-V',
'--version',
action='version',
version='%(prog)s ' + __version__)
parser.add_argument('--python-version',
type=parse_version,
metavar='x.y',
help='use Python x.y')
parser.add_argument(
'--platform',
action='store',
metavar='PLATFORM',
help="typecheck special-cased code for the given OS platform "
"(defaults to sys.platform).")
parser.add_argument('-2',
'--py2',
dest='python_version',
action='store_const',
const=defaults.PYTHON2_VERSION,
help="use Python 2 mode")
parser.add_argument('--ignore-missing-imports',
action='store_true',
help="silently ignore imports of missing modules")
parser.add_argument('--follow-imports',
choices=['normal', 'silent', 'skip', 'error'],
default='normal',
help="how to treat imports (default normal)")
parser.add_argument(
'--disallow-any-unimported',
default=False,
action='store_true',
help="disallow Any types resulting from unfollowed imports")
parser.add_argument('--disallow-any-expr',
default=False,
action='store_true',
help='disallow all expressions that have type Any')
parser.add_argument(
'--disallow-any-decorated',
default=False,
action='store_true',
help='disallow functions that have Any in their signature '
'after decorator transformation')
parser.add_argument('--disallow-any-explicit',
default=False,
action='store_true',
help='disallow explicit Any in type positions')
parser.add_argument(
'--disallow-any-generics',
default=False,
action='store_true',
help='disallow usage of generic types that do not specify explicit '
'type parameters')
add_invertible_flag(
'--disallow-untyped-calls',
default=False,
strict_flag=True,
help="disallow calling functions without type annotations"
" from functions with type annotations")
add_invertible_flag(
'--disallow-untyped-defs',
default=False,
strict_flag=True,
help="disallow defining functions without type annotations"
" or with incomplete type annotations")
add_invertible_flag(
'--disallow-incomplete-defs',
default=False,
strict_flag=True,
help="disallow defining functions with incomplete type annotations")
add_invertible_flag(
'--check-untyped-defs',
default=False,
strict_flag=True,
help="type check the interior of functions without type annotations")
add_invertible_flag(
'--disallow-subclassing-any',
default=False,
strict_flag=True,
help="disallow subclassing values of type 'Any' when defining classes")
add_invertible_flag(
'--warn-incomplete-stub',
default=False,
help="warn if missing type annotation in typeshed, only relevant with"
" --check-untyped-defs enabled")
add_invertible_flag(
'--disallow-untyped-decorators',
default=False,
strict_flag=True,
help="disallow decorating typed functions with untyped decorators")
add_invertible_flag(
'--warn-redundant-casts',
default=False,
strict_flag=True,
help="warn about casting an expression to its inferred type")
add_invertible_flag(
'--no-warn-no-return',
dest='warn_no_return',
default=True,
help="do not warn about functions that end without returning")
add_invertible_flag('--warn-return-any',
default=False,
strict_flag=True,
help="warn about returning values of type Any"
" from non-Any typed functions")
add_invertible_flag('--warn-unused-ignores',
default=False,
strict_flag=True,
help="warn about unneeded '# type: ignore' comments")
add_invertible_flag(
'--warn-unused-configs',
default=False,
strict_flag=True,
help="warn about unused '[mypy-<pattern>]' config sections")
add_invertible_flag(
'--show-error-context',
default=False,
dest='show_error_context',
help='Precede errors with "note:" messages explaining context')
add_invertible_flag(
'--no-implicit-optional',
default=False,
strict_flag=True,
help="don't assume arguments with default values of None are Optional")
parser.add_argument(
'-i',
'--incremental',
action='store_true',
help="enable module cache, (inverse: --no-incremental)")
parser.add_argument('--no-incremental',
action='store_false',
dest='incremental',
help=argparse.SUPPRESS)
parser.add_argument('--quick-and-dirty',
action='store_true',
help="use cache even if dependencies out of date "
"(implies --incremental)")
parser.add_argument(
'--cache-dir',
action='store',
metavar='DIR',
help="store module cache info in the given folder in incremental mode "
"(defaults to '{}')".format(defaults.CACHE_DIR))
parser.add_argument(
'--cache-fine-grained',
action='store_true',
help="include fine-grained dependency information in the cache")
parser.add_argument('--skip-version-check',
action='store_true',
help="allow using cache written by older mypy version")
add_invertible_flag('--strict-optional',
default=False,
strict_flag=True,
help="enable experimental strict Optional checks")
parser.add_argument(
'--strict-optional-whitelist',
metavar='GLOB',
nargs='*',
help="suppress strict Optional errors in all but the provided files "
"(experimental -- read documentation before using!). "
"Implies --strict-optional. Has the undesirable side-effect of "
"suppressing other errors in non-whitelisted files.")
parser.add_argument('--junit-xml',
help="write junit.xml to the given file")
parser.add_argument('--pdb',
action='store_true',
help="invoke pdb on fatal error")
parser.add_argument('--show-traceback',
'--tb',
action='store_true',
help="show traceback on fatal error")
parser.add_argument('--stats',
action='store_true',
dest='dump_type_stats',
help="dump stats")
parser.add_argument('--inferstats',
action='store_true',
dest='dump_inference_stats',
help="dump type inference stats")
parser.add_argument('--custom-typing',
metavar='MODULE',
dest='custom_typing_module',
help="use a custom typing module")
parser.add_argument('--custom-typeshed-dir',
metavar='DIR',
help="use the custom typeshed in DIR")
parser.add_argument('--scripts-are-modules',
action='store_true',
help="Script x becomes module x instead of __main__")
parser.add_argument('--config-file',
help="Configuration file, must have a [mypy] section "
"(defaults to {})".format(defaults.CONFIG_FILE))
add_invertible_flag('--show-column-numbers',
default=False,
help="Show column numbers in error messages")
parser.add_argument(
'--find-occurrences',
metavar='CLASS.MEMBER',
dest='special-opts:find_occurrences',
help="print out all usages of a class member (experimental)")
strict_help = "Strict mode. Enables the following flags: {}".format(
", ".join(strict_flag_names))
parser.add_argument('--strict',
action='store_true',
dest='special-opts:strict',
help=strict_help)
parser.add_argument('--shadow-file',
nargs=2,
metavar=('SOURCE_FILE', 'SHADOW_FILE'),
dest='shadow_file',
help='Typecheck SHADOW_FILE in place of SOURCE_FILE.')
# hidden options
# --debug-cache will disable any cache-related compressions/optimizations,
# which will make the cache writing process output pretty-printed JSON (which
# is easier to debug).
parser.add_argument('--debug-cache',
action='store_true',
help=argparse.SUPPRESS)
# --dump-deps will dump all fine-grained dependencies to stdout
parser.add_argument('--dump-deps',
action='store_true',
help=argparse.SUPPRESS)
# --dump-graph will dump the contents of the graph of SCCs and exit.
parser.add_argument('--dump-graph',
action='store_true',
help=argparse.SUPPRESS)
# --semantic-analysis-only does exactly that.
parser.add_argument('--semantic-analysis-only',
action='store_true',
help=argparse.SUPPRESS)
# --local-partial-types disallows partial types spanning module top level and a function
# (implicitly defined in fine-grained incremental mode)
parser.add_argument('--local-partial-types',
action='store_true',
help=argparse.SUPPRESS)
# deprecated options
parser.add_argument('--disallow-any',
dest='special-opts:disallow_any',
help=argparse.SUPPRESS)
add_invertible_flag('--strict-boolean',
default=False,
help=argparse.SUPPRESS)
parser.add_argument('-f',
'--dirty-stubs',
action='store_true',
dest='special-opts:dirty_stubs',
help=argparse.SUPPRESS)
parser.add_argument('--use-python-path',
action='store_true',
dest='special-opts:use_python_path',
help=argparse.SUPPRESS)
parser.add_argument('-s',
'--silent-imports',
action='store_true',
dest='special-opts:silent_imports',
help=argparse.SUPPRESS)
parser.add_argument('--almost-silent',
action='store_true',
dest='special-opts:almost_silent',
help=argparse.SUPPRESS)
parser.add_argument('--fast-parser',
action='store_true',
dest='special-opts:fast_parser',
help=argparse.SUPPRESS)
parser.add_argument('--no-fast-parser',
action='store_true',
dest='special-opts:no_fast_parser',
help=argparse.SUPPRESS)
if server_options:
parser.add_argument('--experimental',
action='store_true',
dest='fine_grained_incremental',
help="enable fine-grained incremental mode")
parser.add_argument(
'--use-fine-grained-cache',
action='store_true',
help="use the cache in fine-grained incremental mode")
report_group = parser.add_argument_group(
title='report generation',
description='Generate a report in the specified format.')
for report_type in sorted(reporter_classes):
report_group.add_argument('--%s-report' %
report_type.replace('_', '-'),
metavar='DIR',
dest='special-opts:%s_report' % report_type)
code_group = parser.add_argument_group(
title='How to specify the code to type check')
code_group.add_argument(
'-m',
'--module',
action='append',
metavar='MODULE',
dest='special-opts:modules',
help="type-check module; can repeat for more modules")
# TODO: `mypy -p A -p B` currently silently ignores A
# (last option wins). Perhaps -c, -m and -p could just be
# command-line flags that modify how we interpret self.files?
code_group.add_argument('-c',
'--command',
action='append',
metavar='PROGRAM_TEXT',
dest='special-opts:command',
help="type-check program passed in as string")
code_group.add_argument('-p',
'--package',
metavar='PACKAGE',
dest='special-opts:package',
help="type-check all files in a directory")
code_group.add_argument(metavar='files',
nargs='*',
dest='special-opts:files',
help="type-check given files or directories")
# Parse arguments once into a dummy namespace so we can get the
# filename for the config file and know if the user requested all strict options.
dummy = argparse.Namespace()
parser.parse_args(args, dummy)
config_file = dummy.config_file
if config_file is not None and not os.path.exists(config_file):
parser.error("Cannot find config file '%s'" % config_file)
# Parse config file first, so command line can override.
options = Options()
parse_config_file(options, config_file)
# Set strict flags before parsing (if strict mode enabled), so other command
# line options can override.
if getattr(dummy, 'special-opts:strict'):
for dest, value in strict_flag_assignments:
setattr(options, dest, value)
# Parse command line for real, using a split namespace.
special_opts = argparse.Namespace()
parser.parse_args(args,
SplitNamespace(options, special_opts, 'special-opts:'))
# --use-python-path is no longer supported; explain why.
if special_opts.use_python_path:
parser.error(
"Sorry, --use-python-path is no longer supported.\n"
"If you are trying this because your code depends on a library module,\n"
"you should really investigate how to obtain stubs for that module.\n"
"See https://github.com/python/mypy/issues/1411 for more discussion."
)
# Process deprecated options
if special_opts.disallow_any:
print(
"--disallow-any option was split up into multiple flags. "
"See http://mypy.readthedocs.io/en/latest/command_line.html#disallow-any-flags"
)
if options.strict_boolean:
print(
"Warning: --strict-boolean is deprecated; "
"see https://github.com/python/mypy/issues/3195",
file=sys.stderr)
if special_opts.almost_silent:
print(
"Warning: --almost-silent has been replaced by "
"--follow-imports=errors",
file=sys.stderr)
if options.follow_imports == 'normal':
options.follow_imports = 'errors'
elif special_opts.silent_imports:
print(
"Warning: --silent-imports has been replaced by "
"--ignore-missing-imports --follow-imports=skip",
file=sys.stderr)
options.ignore_missing_imports = True
if options.follow_imports == 'normal':
options.follow_imports = 'skip'
if special_opts.dirty_stubs:
print(
"Warning: -f/--dirty-stubs is deprecated and no longer necessary. Mypy no longer "
"checks the git status of stubs.",
file=sys.stderr)
if special_opts.fast_parser:
print("Warning: --fast-parser is now the default (and only) parser.")
if special_opts.no_fast_parser:
print(
"Warning: --no-fast-parser no longer has any effect. The fast parser "
"is now mypy's default and only parser.")
# Check for invalid argument combinations.
if require_targets:
code_methods = sum(
bool(c) for c in [
special_opts.modules, special_opts.command,
special_opts.package, special_opts.files
])
if code_methods == 0:
parser.error("Missing target module, package, files, or command.")
elif code_methods > 1:
parser.error(
"May only specify one of: module, package, files, or command.")
# Set build flags.
if options.strict_optional_whitelist is not None:
# TODO: Deprecate, then kill this flag
options.strict_optional = True
if special_opts.find_occurrences:
experiments.find_occurrences = special_opts.find_occurrences.split('.')
assert experiments.find_occurrences is not None
if len(experiments.find_occurrences) < 2:
parser.error("Can only find occurrences of class members.")
if len(experiments.find_occurrences) != 2:
parser.error(
"Can only find occurrences of non-nested class members.")
# Set reports.
for flag, val in vars(special_opts).items():
if flag.endswith('_report') and val is not None:
report_type = flag[:-7].replace('_', '-')
report_dir = val
options.report_dirs[report_type] = report_dir
# Let quick_and_dirty imply incremental.
if options.quick_and_dirty:
options.incremental = True
# Set target.
if special_opts.modules:
options.build_type = BuildType.MODULE
targets = [BuildSource(None, m, None) for m in special_opts.modules]
return targets, options
elif special_opts.package:
if os.sep in special_opts.package or os.altsep and os.altsep in special_opts.package:
fail("Package name '{}' cannot have a slash in it.".format(
special_opts.package))
options.build_type = BuildType.MODULE
lib_path = [os.getcwd()] + build.mypy_path()
# TODO: use the same cache as the BuildManager will
targets = build.FindModuleCache().find_modules_recursive(
special_opts.package, lib_path)
if not targets:
fail("Can't find package '{}'".format(special_opts.package))
return targets, options
elif special_opts.command:
options.build_type = BuildType.PROGRAM_TEXT
targets = [BuildSource(None, None, '\n'.join(special_opts.command))]
return targets, options
else:
targets = create_source_list(special_opts.files, options)
return targets, options
def main() -> int:
assert sys.version_info >= (3, 5), "This script requires at least Python 3.5"
parser = argparse.ArgumentParser(
description="Compares stubs to objects introspected from the runtime."
)
parser.add_argument("modules", nargs="*", help="Modules to test")
parser.add_argument("--concise", action="store_true", help="Make output concise")
parser.add_argument(
"--ignore-missing-stub",
action="store_true",
help="Ignore errors for stub missing things that are present at runtime",
)
parser.add_argument(
"--ignore-positional-only",
action="store_true",
help="Ignore errors for whether an argument should or shouldn't be positional-only",
)
parser.add_argument(
"--custom-typeshed-dir", metavar="DIR", help="Use the custom typeshed in DIR"
)
parser.add_argument(
"--check-typeshed", action="store_true", help="Check all stdlib modules in typeshed"
)
parser.add_argument(
"--whitelist",
action="append",
metavar="FILE",
default=[],
help=(
"Use file as a whitelist. Can be passed multiple times to combine multiple "
"whitelists. Whitelist can be created with --generate-whitelist"
),
)
parser.add_argument(
"--generate-whitelist",
action="store_true",
help="Print a whitelist (to stdout) to be used with --whitelist",
)
args = parser.parse_args()
# Load the whitelist. This is a series of strings corresponding to Error.object_desc
# Values in the dict will store whether we used the whitelist entry or not.
whitelist = {
entry: False
for whitelist_file in args.whitelist
for entry in get_whitelist_entries(whitelist_file)
}
# If we need to generate a whitelist, we store Error.object_desc for each error here.
generated_whitelist = set()
modules = args.modules
if args.check_typeshed:
assert not args.modules, "Cannot pass both --check-typeshed and a list of modules"
modules = get_typeshed_stdlib_modules(args.custom_typeshed_dir)
modules.remove("antigravity") # it's super annoying
assert modules, "No modules to check"
options = Options()
options.incremental = False
options.custom_typeshed_dir = args.custom_typeshed_dir
modules = build_stubs(modules, options, find_submodules=not args.check_typeshed)
exit_code = 0
for module in modules:
for error in test_module(module):
# Filter errors
if args.ignore_missing_stub and error.is_missing_stub():
continue
if args.ignore_positional_only and error.is_positional_only_related():
continue
if error.object_desc in whitelist:
whitelist[error.object_desc] = True
continue
# We have errors, so change exit code, and output whatever necessary
exit_code = 1
if args.generate_whitelist:
generated_whitelist.add(error.object_desc)
continue
print(error.get_description(concise=args.concise))
# Print unused whitelist entries
for w in whitelist:
if not whitelist[w]:
exit_code = 1
print("note: unused whitelist entry {}".format(w))
# Print the generated whitelist
if args.generate_whitelist:
for e in sorted(generated_whitelist):
print(e)
exit_code = 0
return exit_code
def process_options(args: List[str],
require_targets: bool = True,
server_options: bool = False,
) -> Tuple[List[BuildSource], Options]:
"""Parse command line arguments."""
parser = argparse.ArgumentParser(prog='mypy', epilog=FOOTER,
fromfile_prefix_chars='@',
formatter_class=AugmentedHelpFormatter)
strict_flag_names = [] # type: List[str]
strict_flag_assignments = [] # type: List[Tuple[str, bool]]
def add_invertible_flag(flag: str,
*,
inverse: Optional[str] = None,
default: bool,
dest: Optional[str] = None,
help: str,
strict_flag: bool = False
) -> None:
if inverse is None:
inverse = invert_flag_name(flag)
if help is not argparse.SUPPRESS:
help += " (inverse: {})".format(inverse)
arg = parser.add_argument(flag, # type: ignore # incorrect stub for add_argument
action='store_false' if default else 'store_true',
dest=dest,
help=help)
dest = arg.dest
arg = parser.add_argument(inverse, # type: ignore # incorrect stub for add_argument
action='store_true' if default else 'store_false',
dest=dest,
help=argparse.SUPPRESS)
if strict_flag:
assert dest is not None
strict_flag_names.append(flag)
strict_flag_assignments.append((dest, not default))
# Unless otherwise specified, arguments will be parsed directly onto an
# Options object. Options that require further processing should have
# their `dest` prefixed with `special-opts:`, which will cause them to be
# parsed into the separate special_opts namespace object.
parser.add_argument('-v', '--verbose', action='count', dest='verbosity',
help="more verbose messages")
parser.add_argument('-V', '--version', action='version',
version='%(prog)s ' + __version__)
parser.add_argument('--python-version', type=parse_version, metavar='x.y',
help='use Python x.y')
parser.add_argument('--platform', action='store', metavar='PLATFORM',
help="typecheck special-cased code for the given OS platform "
"(defaults to sys.platform).")
parser.add_argument('-2', '--py2', dest='python_version', action='store_const',
const=defaults.PYTHON2_VERSION, help="use Python 2 mode")
parser.add_argument('--ignore-missing-imports', action='store_true',
help="silently ignore imports of missing modules")
parser.add_argument('--follow-imports', choices=['normal', 'silent', 'skip', 'error'],
default='normal', help="how to treat imports (default normal)")
parser.add_argument('--disallow-any-unimported', default=False, action='store_true',
help="disallow Any types resulting from unfollowed imports")
parser.add_argument('--disallow-any-expr', default=False, action='store_true',
help='disallow all expressions that have type Any')
parser.add_argument('--disallow-any-decorated', default=False, action='store_true',
help='disallow functions that have Any in their signature '
'after decorator transformation')
parser.add_argument('--disallow-any-explicit', default=False, action='store_true',
help='disallow explicit Any in type positions')
parser.add_argument('--disallow-any-generics', default=False, action='store_true',
help='disallow usage of generic types that do not specify explicit '
'type parameters')
add_invertible_flag('--disallow-untyped-calls', default=False, strict_flag=True,
help="disallow calling functions without type annotations"
" from functions with type annotations")
add_invertible_flag('--disallow-untyped-defs', default=False, strict_flag=True,
help="disallow defining functions without type annotations"
" or with incomplete type annotations")
add_invertible_flag('--disallow-incomplete-defs', default=False, strict_flag=True,
help="disallow defining functions with incomplete type annotations")
add_invertible_flag('--check-untyped-defs', default=False, strict_flag=True,
help="type check the interior of functions without type annotations")
add_invertible_flag('--disallow-subclassing-any', default=False, strict_flag=True,
help="disallow subclassing values of type 'Any' when defining classes")
add_invertible_flag('--warn-incomplete-stub', default=False,
help="warn if missing type annotation in typeshed, only relevant with"
" --check-untyped-defs enabled")
add_invertible_flag('--disallow-untyped-decorators', default=False, strict_flag=True,
help="disallow decorating typed functions with untyped decorators")
add_invertible_flag('--warn-redundant-casts', default=False, strict_flag=True,
help="warn about casting an expression to its inferred type")
add_invertible_flag('--no-warn-no-return', dest='warn_no_return', default=True,
help="do not warn about functions that end without returning")
add_invertible_flag('--warn-return-any', default=False, strict_flag=True,
help="warn about returning values of type Any"
" from non-Any typed functions")
add_invertible_flag('--warn-unused-ignores', default=False, strict_flag=True,
help="warn about unneeded '# type: ignore' comments")
add_invertible_flag('--warn-unused-configs', default=False, strict_flag=True,
help="warn about unused '[mypy-<pattern>]' config sections")
add_invertible_flag('--show-error-context', default=False,
dest='show_error_context',
help='Precede errors with "note:" messages explaining context')
add_invertible_flag('--no-implicit-optional', default=False, strict_flag=True,
help="don't assume arguments with default values of None are Optional")
parser.add_argument('-i', '--incremental', action='store_true',
help="enable module cache, (inverse: --no-incremental)")
parser.add_argument('--no-incremental', action='store_false', dest='incremental',
help=argparse.SUPPRESS)
parser.add_argument('--quick-and-dirty', action='store_true',
help="use cache even if dependencies out of date "
"(implies --incremental)")
parser.add_argument('--cache-dir', action='store', metavar='DIR',
help="store module cache info in the given folder in incremental mode "
"(defaults to '{}')".format(defaults.CACHE_DIR))
parser.add_argument('--cache-fine-grained', action='store_true',
help="include fine-grained dependency information in the cache")
parser.add_argument('--skip-version-check', action='store_true',
help="allow using cache written by older mypy version")
add_invertible_flag('--strict-optional', default=False, strict_flag=True,
help="enable experimental strict Optional checks")
parser.add_argument('--strict-optional-whitelist', metavar='GLOB', nargs='*',
help="suppress strict Optional errors in all but the provided files "
"(experimental -- read documentation before using!). "
"Implies --strict-optional. Has the undesirable side-effect of "
"suppressing other errors in non-whitelisted files.")
parser.add_argument('--junit-xml', help="write junit.xml to the given file")
parser.add_argument('--pdb', action='store_true', help="invoke pdb on fatal error")
parser.add_argument('--show-traceback', '--tb', action='store_true',
help="show traceback on fatal error")
parser.add_argument('--stats', action='store_true', dest='dump_type_stats', help="dump stats")
parser.add_argument('--inferstats', action='store_true', dest='dump_inference_stats',
help="dump type inference stats")
parser.add_argument('--custom-typing', metavar='MODULE', dest='custom_typing_module',
help="use a custom typing module")
parser.add_argument('--custom-typeshed-dir', metavar='DIR',
help="use the custom typeshed in DIR")
parser.add_argument('--scripts-are-modules', action='store_true',
help="Script x becomes module x instead of __main__")
parser.add_argument('--config-file',
help="Configuration file, must have a [mypy] section "
"(defaults to {})".format(defaults.CONFIG_FILE))
add_invertible_flag('--show-column-numbers', default=False,
help="Show column numbers in error messages")
parser.add_argument('--find-occurrences', metavar='CLASS.MEMBER',
dest='special-opts:find_occurrences',
help="print out all usages of a class member (experimental)")
strict_help = "Strict mode. Enables the following flags: {}".format(
", ".join(strict_flag_names))
parser.add_argument('--strict', action='store_true', dest='special-opts:strict',
help=strict_help)
parser.add_argument('--shadow-file', nargs=2, metavar=('SOURCE_FILE', 'SHADOW_FILE'),
dest='shadow_file',
help='Typecheck SHADOW_FILE in place of SOURCE_FILE.')
# hidden options
# --debug-cache will disable any cache-related compressions/optimizations,
# which will make the cache writing process output pretty-printed JSON (which
# is easier to debug).
parser.add_argument('--debug-cache', action='store_true', help=argparse.SUPPRESS)
# --dump-deps will dump all fine-grained dependencies to stdout
parser.add_argument('--dump-deps', action='store_true', help=argparse.SUPPRESS)
# --dump-graph will dump the contents of the graph of SCCs and exit.
parser.add_argument('--dump-graph', action='store_true', help=argparse.SUPPRESS)
# --semantic-analysis-only does exactly that.
parser.add_argument('--semantic-analysis-only', action='store_true', help=argparse.SUPPRESS)
# --local-partial-types disallows partial types spanning module top level and a function
# (implicitly defined in fine-grained incremental mode)
parser.add_argument('--local-partial-types', action='store_true', help=argparse.SUPPRESS)
# deprecated options
parser.add_argument('--disallow-any', dest='special-opts:disallow_any',
help=argparse.SUPPRESS)
add_invertible_flag('--strict-boolean', default=False,
help=argparse.SUPPRESS)
parser.add_argument('-f', '--dirty-stubs', action='store_true',
dest='special-opts:dirty_stubs',
help=argparse.SUPPRESS)
parser.add_argument('--use-python-path', action='store_true',
dest='special-opts:use_python_path',
help=argparse.SUPPRESS)
parser.add_argument('-s', '--silent-imports', action='store_true',
dest='special-opts:silent_imports',
help=argparse.SUPPRESS)
parser.add_argument('--almost-silent', action='store_true',
dest='special-opts:almost_silent',
help=argparse.SUPPRESS)
parser.add_argument('--fast-parser', action='store_true', dest='special-opts:fast_parser',
help=argparse.SUPPRESS)
parser.add_argument('--no-fast-parser', action='store_true',
dest='special-opts:no_fast_parser',
help=argparse.SUPPRESS)
if server_options:
# TODO: This flag is superfluous; remove after a short transition (2018-03-16)
parser.add_argument('--experimental', action='store_true', dest='fine_grained_incremental',
help="enable fine-grained incremental mode")
parser.add_argument('--use-fine-grained-cache', action='store_true',
help="use the cache in fine-grained incremental mode")
report_group = parser.add_argument_group(
title='report generation',
description='Generate a report in the specified format.')
for report_type in sorted(reporter_classes):
report_group.add_argument('--%s-report' % report_type.replace('_', '-'),
metavar='DIR',
dest='special-opts:%s_report' % report_type)
code_group = parser.add_argument_group(title='How to specify the code to type check')
code_group.add_argument('-m', '--module', action='append', metavar='MODULE',
default=[],
dest='special-opts:modules',
help="type-check module; can repeat for more modules")
code_group.add_argument('-p', '--package', action='append', metavar='PACKAGE',
default=[],
dest='special-opts:packages',
help="type-check package recursively; can be repeated")
code_group.add_argument('-c', '--command', action='append', metavar='PROGRAM_TEXT',
dest='special-opts:command',
help="type-check program passed in as string")
code_group.add_argument(metavar='files', nargs='*', dest='special-opts:files',
help="type-check given files or directories")
# Parse arguments once into a dummy namespace so we can get the
# filename for the config file and know if the user requested all strict options.
dummy = argparse.Namespace()
parser.parse_args(args, dummy)
config_file = dummy.config_file
if config_file is not None and not os.path.exists(config_file):
parser.error("Cannot find config file '%s'" % config_file)
# Parse config file first, so command line can override.
options = Options()
parse_config_file(options, config_file)
# Set strict flags before parsing (if strict mode enabled), so other command
# line options can override.
if getattr(dummy, 'special-opts:strict'):
for dest, value in strict_flag_assignments:
setattr(options, dest, value)
# Parse command line for real, using a split namespace.
special_opts = argparse.Namespace()
parser.parse_args(args, SplitNamespace(options, special_opts, 'special-opts:'))
# --use-python-path is no longer supported; explain why.
if special_opts.use_python_path:
parser.error("Sorry, --use-python-path is no longer supported.\n"
"If you are trying this because your code depends on a library module,\n"
"you should really investigate how to obtain stubs for that module.\n"
"See https://github.com/python/mypy/issues/1411 for more discussion."
)
# Process deprecated options
if special_opts.disallow_any:
print("--disallow-any option was split up into multiple flags. "
"See http://mypy.readthedocs.io/en/latest/command_line.html#disallow-any-flags")
if options.strict_boolean:
print("Warning: --strict-boolean is deprecated; "
"see https://github.com/python/mypy/issues/3195", file=sys.stderr)
if special_opts.almost_silent:
print("Warning: --almost-silent has been replaced by "
"--follow-imports=errors", file=sys.stderr)
if options.follow_imports == 'normal':
options.follow_imports = 'errors'
elif special_opts.silent_imports:
print("Warning: --silent-imports has been replaced by "
"--ignore-missing-imports --follow-imports=skip", file=sys.stderr)
options.ignore_missing_imports = True
if options.follow_imports == 'normal':
options.follow_imports = 'skip'
if special_opts.dirty_stubs:
print("Warning: -f/--dirty-stubs is deprecated and no longer necessary. Mypy no longer "
"checks the git status of stubs.",
file=sys.stderr)
if special_opts.fast_parser:
print("Warning: --fast-parser is now the default (and only) parser.")
if special_opts.no_fast_parser:
print("Warning: --no-fast-parser no longer has any effect. The fast parser "
"is now mypy's default and only parser.")
# Check for invalid argument combinations.
if require_targets:
code_methods = sum(bool(c) for c in [special_opts.modules + special_opts.packages,
special_opts.command,
special_opts.files])
if code_methods == 0:
parser.error("Missing target module, package, files, or command.")
elif code_methods > 1:
parser.error("May only specify one of: module/package, files, or command.")
# Set build flags.
if options.strict_optional_whitelist is not None:
# TODO: Deprecate, then kill this flag
options.strict_optional = True
if special_opts.find_occurrences:
experiments.find_occurrences = special_opts.find_occurrences.split('.')
assert experiments.find_occurrences is not None
if len(experiments.find_occurrences) < 2:
parser.error("Can only find occurrences of class members.")
if len(experiments.find_occurrences) != 2:
parser.error("Can only find occurrences of non-nested class members.")
# Set reports.
for flag, val in vars(special_opts).items():
if flag.endswith('_report') and val is not None:
report_type = flag[:-7].replace('_', '-')
report_dir = val
options.report_dirs[report_type] = report_dir
# Let quick_and_dirty imply incremental.
if options.quick_and_dirty:
options.incremental = True
# Set target.
if special_opts.modules + special_opts.packages:
options.build_type = BuildType.MODULE
lib_path = [os.getcwd()] + build.mypy_path()
targets = []
# TODO: use the same cache as the BuildManager will
cache = build.FindModuleCache()
for p in special_opts.packages:
if os.sep in p or os.altsep and os.altsep in p:
fail("Package name '{}' cannot have a slash in it.".format(p))
p_targets = cache.find_modules_recursive(p, lib_path)
if not p_targets:
fail("Can't find package '{}'".format(p))
targets.extend(p_targets)
for m in special_opts.modules:
targets.append(BuildSource(None, m, None))
return targets, options
elif special_opts.command:
options.build_type = BuildType.PROGRAM_TEXT
targets = [BuildSource(None, None, '\n'.join(special_opts.command))]
return targets, options
else:
try:
targets = create_source_list(special_opts.files, options)
except InvalidSourceList as e:
fail(str(e))
return targets, options
def process_options(args: List[str],
require_targets: bool = True,
server_options: bool = False,
fscache: Optional[FileSystemCache] = None,
) -> Tuple[List[BuildSource], Options]:
"""Parse command line arguments.
If a FileSystemCache is passed in, and package_root options are given,
call fscache.set_package_root() to set the cache's package root.
"""
parser = argparse.ArgumentParser(prog='mypy', epilog=FOOTER,
fromfile_prefix_chars='@',
formatter_class=AugmentedHelpFormatter)
strict_flag_names = [] # type: List[str]
strict_flag_assignments = [] # type: List[Tuple[str, bool]]
def add_invertible_flag(flag: str,
*,
inverse: Optional[str] = None,
default: bool,
dest: Optional[str] = None,
help: str,
strict_flag: bool = False,
group: Optional[argparse._ActionsContainer] = None
) -> None:
if inverse is None:
inverse = invert_flag_name(flag)
if group is None:
group = parser
if help is not argparse.SUPPRESS:
help += " (inverse: {})".format(inverse)
arg = group.add_argument(flag,
action='store_false' if default else 'store_true',
dest=dest,
help=help)
dest = arg.dest
arg = group.add_argument(inverse,
action='store_true' if default else 'store_false',
dest=dest,
help=argparse.SUPPRESS)
if strict_flag:
assert dest is not None
strict_flag_names.append(flag)
strict_flag_assignments.append((dest, not default))
# Unless otherwise specified, arguments will be parsed directly onto an
# Options object. Options that require further processing should have
# their `dest` prefixed with `special-opts:`, which will cause them to be
# parsed into the separate special_opts namespace object.
parser.add_argument('-v', '--verbose', action='count', dest='verbosity',
help="more verbose messages")
parser.add_argument('-V', '--version', action='version',
version='%(prog)s ' + __version__,
help="show program's version number and exit")
config_group = parser.add_argument_group(
title='config file',
description="Use a config file instead of command line arguments.")
config_group.add_argument(
'--config-file',
help="configuration file, must have a [mypy] section "
"(defaults to {})".format(', '.join(defaults.CONFIG_FILES)))
add_invertible_flag('--warn-unused-configs', default=False, strict_flag=True,
help="warn about unused '[mypy-<pattern>]' config sections",
group=config_group)
imports_group = parser.add_argument_group(
title='import discovery',
description="Configure how imports are discovered and followed.")
imports_group.add_argument(
'--ignore-missing-imports', action='store_true',
help="silently ignore imports of missing modules")
imports_group.add_argument(
'--follow-imports', choices=['normal', 'silent', 'skip', 'error'],
default='normal', help="how to treat imports (default normal)")
imports_group.add_argument(
'--python-executable', action='store', metavar='EXECUTABLE',
help="Python executable used for finding PEP 561 compliant installed"
" packages and stubs",
dest='special-opts:python_executable')
imports_group.add_argument(
'--no-site-packages', action='store_true',
dest='special-opts:no_executable',
help="do not search for installed PEP 561 compliant packages")
platform_group = parser.add_argument_group(
title='platform configuration',
description="Type check code assuming certain runtime conditions.")
platform_group.add_argument(
'--python-version', type=parse_version, metavar='x.y',
help='type check code assuming it will be running on Python x.y',
dest='special-opts:python_version')
platform_group.add_argument(
'-2', '--py2', dest='python_version', action='store_const',
const=defaults.PYTHON2_VERSION,
help="use Python 2 mode (same as --python-version 2.7)")
platform_group.add_argument(
'--platform', action='store', metavar='PLATFORM',
help="type check special-cased code for the given OS platform "
"(defaults to sys.platform)")
platform_group.add_argument(
'--always-true', metavar='NAME', action='append', default=[],
help="additional variable to be considered True (may be repeated)")
platform_group.add_argument(
'--always-false', metavar='NAME', action='append', default=[],
help="additional variable to be considered False (may be repeated)")
disallow_any_group = parser.add_argument_group(
title='Any type restrictions',
description="Disallow the use of the 'Any' type under certain conditions.")
disallow_any_group.add_argument(
'--disallow-any-unimported', default=False, action='store_true',
help="disallow Any types resulting from unfollowed imports")
add_invertible_flag('--disallow-subclassing-any', default=False, strict_flag=True,
help="disallow subclassing values of type 'Any' when defining classes",
group=disallow_any_group)
disallow_any_group.add_argument(
'--disallow-any-expr', default=False, action='store_true',
help='disallow all expressions that have type Any')
disallow_any_group.add_argument(
'--disallow-any-decorated', default=False, action='store_true',
help='disallow functions that have Any in their signature '
'after decorator transformation')
disallow_any_group.add_argument(
'--disallow-any-explicit', default=False, action='store_true',
help='disallow explicit Any in type positions')
disallow_any_group.add_argument(
'--disallow-any-generics', default=False, action='store_true',
help='disallow usage of generic types that do not specify explicit '
'type parameters')
untyped_group = parser.add_argument_group(
title='untyped definitions and calls',
description="Configure how untyped definitions and calls are handled.")
add_invertible_flag('--disallow-untyped-calls', default=False, strict_flag=True,
help="disallow calling functions without type annotations"
" from functions with type annotations",
group=untyped_group)
add_invertible_flag('--disallow-untyped-defs', default=False, strict_flag=True,
help="disallow defining functions without type annotations"
" or with incomplete type annotations",
group=untyped_group)
add_invertible_flag('--disallow-incomplete-defs', default=False, strict_flag=True,
help="disallow defining functions with incomplete type annotations",
group=untyped_group)
add_invertible_flag('--check-untyped-defs', default=False, strict_flag=True,
help="type check the interior of functions without type annotations",
group=untyped_group)
add_invertible_flag('--warn-incomplete-stub', default=False,
help="warn if missing type annotation in typeshed, only relevant with"
" --check-untyped-defs enabled",
group=untyped_group)
none_group = parser.add_argument_group(
title='None and Optional handling',
description="Adjust how values of type 'None' are handled.")
add_invertible_flag('--no-implicit-optional', default=False, strict_flag=True,
help="don't assume arguments with default values of None are Optional",
group=none_group)
none_group.add_argument(
'--strict-optional', action='store_true',
help=argparse.SUPPRESS)
none_group.add_argument(
'--no-strict-optional', action='store_false', dest='strict_optional',
help="disable strict Optional checks (inverse: --strict-optional)")
none_group.add_argument(
'--strict-optional-whitelist', metavar='GLOB', nargs='*',
help="suppress strict Optional errors in all but the provided files; "
"implies --strict-optional (may suppress certain other errors "
"in non-whitelisted files)")
lint_group = parser.add_argument_group(
title='warnings',
description="Detect code that is sound but redundant or problematic.")
add_invertible_flag('--warn-redundant-casts', default=False, strict_flag=True,
help="warn about casting an expression to its inferred type",
group=lint_group)
add_invertible_flag('--no-warn-no-return', dest='warn_no_return', default=True,
help="do not warn about functions that end without returning",
group=lint_group)
add_invertible_flag('--warn-return-any', default=False, strict_flag=True,
help="warn about returning values of type Any"
" from non-Any typed functions",
group=lint_group)
add_invertible_flag('--warn-unused-ignores', default=False, strict_flag=True,
help="warn about unneeded '# type: ignore' comments",
group=lint_group)
strictness_group = parser.add_argument_group(
title='other strictness checks',
description="Other miscellaneous strictness checks.")
add_invertible_flag('--disallow-untyped-decorators', default=False, strict_flag=True,
help="disallow decorating typed functions with untyped decorators",
group=strictness_group)
incremental_group = parser.add_argument_group(
title='incremental mode',
description="Adjust how mypy incrementally type checks and caches modules.")
incremental_group.add_argument(
'-i', '--incremental', action='store_true',
help=argparse.SUPPRESS)
incremental_group.add_argument(
'--no-incremental', action='store_false', dest='incremental',
help="disable module cache (inverse: --incremental)")
incremental_group.add_argument(
'--cache-dir', action='store', metavar='DIR',
help="store module cache info in the given folder in incremental mode "
"(defaults to '{}')".format(defaults.CACHE_DIR))
incremental_group.add_argument(
'--cache-fine-grained', action='store_true',
help="include fine-grained dependency information in the cache for the mypy daemon")
incremental_group.add_argument(
'--quick-and-dirty', action='store_true',
help="use cache even if dependencies out of date (implies --incremental)")
incremental_group.add_argument(
'--skip-version-check', action='store_true',
help="allow using cache written by older mypy version")
internals_group = parser.add_argument_group(
title='mypy internals',
description="Debug and customize mypy internals.")
internals_group.add_argument(
'--pdb', action='store_true', help="invoke pdb on fatal error")
internals_group.add_argument(
'--show-traceback', '--tb', action='store_true',
help="show traceback on fatal error")
internals_group.add_argument(
'--custom-typing', metavar='MODULE', dest='custom_typing_module',
help="use a custom typing module")
internals_group.add_argument(
'--custom-typeshed-dir', metavar='DIR',
help="use the custom typeshed in DIR")
internals_group.add_argument(
'--shadow-file', nargs=2, metavar=('SOURCE_FILE', 'SHADOW_FILE'),
dest='shadow_file', action='append',
help="when encountering SOURCE_FILE, read and type check "
"the contents of SHADOW_FILE instead.")
error_group = parser.add_argument_group(
title='error reporting',
description="Adjust the amount of detail shown in error messages.")
add_invertible_flag('--show-error-context', default=False,
dest='show_error_context',
help='precede errors with "note:" messages explaining context',
group=error_group)
add_invertible_flag('--show-column-numbers', default=False,
help="show column numbers in error messages",
group=error_group)
analysis_group = parser.add_argument_group(
title='extra analysis',
description="Extract additional information and analysis.")
analysis_group.add_argument(
'--stats', action='store_true', dest='dump_type_stats', help=argparse.SUPPRESS)
analysis_group.add_argument(
'--inferstats', action='store_true', dest='dump_inference_stats',
help=argparse.SUPPRESS)
analysis_group.add_argument(
'--find-occurrences', metavar='CLASS.MEMBER',
dest='special-opts:find_occurrences',
help="print out all usages of a class member (experimental)")
strict_help = "strict mode; enables the following flags: {}".format(
", ".join(strict_flag_names))
strictness_group.add_argument(
'--strict', action='store_true', dest='special-opts:strict',
help=strict_help)
report_group = parser.add_argument_group(
title='report generation',
description='Generate a report in the specified format.')
for report_type in sorted(reporter_classes):
report_group.add_argument('--%s-report' % report_type.replace('_', '-'),
metavar='DIR',
dest='special-opts:%s_report' % report_type)
other_group = parser.add_argument_group(
title='miscellaneous',
description="Other miscellaneous flags.")
other_group.add_argument(
'--junit-xml', help="write junit.xml to the given file")
other_group.add_argument(
'--scripts-are-modules', action='store_true',
help="script x becomes module x instead of __main__")
if server_options:
# TODO: This flag is superfluous; remove after a short transition (2018-03-16)
other_group.add_argument(
'--experimental', action='store_true', dest='fine_grained_incremental',
help="enable fine-grained incremental mode")
other_group.add_argument(
'--use-fine-grained-cache', action='store_true',
help="use the cache in fine-grained incremental mode")
# hidden options
# --debug-cache will disable any cache-related compressions/optimizations,
# which will make the cache writing process output pretty-printed JSON (which
# is easier to debug).
parser.add_argument('--debug-cache', action='store_true', help=argparse.SUPPRESS)
# --dump-deps will dump all fine-grained dependencies to stdout
parser.add_argument('--dump-deps', action='store_true', help=argparse.SUPPRESS)
# --dump-graph will dump the contents of the graph of SCCs and exit.
parser.add_argument('--dump-graph', action='store_true', help=argparse.SUPPRESS)
# --semantic-analysis-only does exactly that.
parser.add_argument('--semantic-analysis-only', action='store_true', help=argparse.SUPPRESS)
# --local-partial-types disallows partial types spanning module top level and a function
# (implicitly defined in fine-grained incremental mode)
parser.add_argument('--local-partial-types', action='store_true', help=argparse.SUPPRESS)
# --bazel changes some behaviors for use with Bazel (https://bazel.build).
parser.add_argument('--bazel', action='store_true', help=argparse.SUPPRESS)
# --package-root adds a directory below which directories are considered
# packages even without __init__.py. May be repeated.
parser.add_argument('--package-root', metavar='ROOT', action='append', default=[],
help=argparse.SUPPRESS)
# --cache-map FILE ... gives a mapping from source files to cache files.
# Each triple of arguments is a source file, a cache meta file, and a cache data file.
# Modules not mentioned in the file will go through cache_dir.
# Must be followed by another flag or by '--' (and then only file args may follow).
parser.add_argument('--cache-map', nargs='+', dest='special-opts:cache_map',
help=argparse.SUPPRESS)
# deprecated options
parser.add_argument('--disallow-any', dest='special-opts:disallow_any',
help=argparse.SUPPRESS)
add_invertible_flag('--strict-boolean', default=False,
help=argparse.SUPPRESS)
parser.add_argument('-f', '--dirty-stubs', action='store_true',
dest='special-opts:dirty_stubs',
help=argparse.SUPPRESS)
parser.add_argument('--use-python-path', action='store_true',
dest='special-opts:use_python_path',
help=argparse.SUPPRESS)
parser.add_argument('-s', '--silent-imports', action='store_true',
dest='special-opts:silent_imports',
help=argparse.SUPPRESS)
parser.add_argument('--almost-silent', action='store_true',
dest='special-opts:almost_silent',
help=argparse.SUPPRESS)
parser.add_argument('--fast-parser', action='store_true', dest='special-opts:fast_parser',
help=argparse.SUPPRESS)
parser.add_argument('--no-fast-parser', action='store_true',
dest='special-opts:no_fast_parser',
help=argparse.SUPPRESS)
code_group = parser.add_argument_group(title='specifying which code to type check')
code_group.add_argument('-m', '--module', action='append', metavar='MODULE',
default=[],
dest='special-opts:modules',
help="type-check module; can repeat for more modules")
code_group.add_argument('-p', '--package', action='append', metavar='PACKAGE',
default=[],
dest='special-opts:packages',
help="type-check package recursively; can be repeated")
code_group.add_argument('-c', '--command', action='append', metavar='PROGRAM_TEXT',
dest='special-opts:command',
help="type-check program passed in as string")
code_group.add_argument(metavar='files', nargs='*', dest='special-opts:files',
help="type-check given files or directories")
# Parse arguments once into a dummy namespace so we can get the
# filename for the config file and know if the user requested all strict options.
dummy = argparse.Namespace()
parser.parse_args(args, dummy)
config_file = dummy.config_file
if config_file is not None and not os.path.exists(config_file):
parser.error("Cannot find config file '%s'" % config_file)
# Parse config file first, so command line can override.
options = Options()
parse_config_file(options, config_file)
# Set strict flags before parsing (if strict mode enabled), so other command
# line options can override.
if getattr(dummy, 'special-opts:strict'):
for dest, value in strict_flag_assignments:
setattr(options, dest, value)
# Parse command line for real, using a split namespace.
special_opts = argparse.Namespace()
parser.parse_args(args, SplitNamespace(options, special_opts, 'special-opts:'))
# --use-python-path is no longer supported; explain why.
if special_opts.use_python_path:
parser.error("Sorry, --use-python-path is no longer supported.\n"
"If you are trying this because your code depends on a library module,\n"
"you should really investigate how to obtain stubs for that module.\n"
"See https://github.com/python/mypy/issues/1411 for more discussion."
)
# Process deprecated options
if special_opts.disallow_any:
print("--disallow-any option was split up into multiple flags. "
"See http://mypy.readthedocs.io/en/latest/command_line.html#disallow-any-flags")
if options.strict_boolean:
print("Warning: --strict-boolean is deprecated; "
"see https://github.com/python/mypy/issues/3195", file=sys.stderr)
if special_opts.almost_silent:
print("Warning: --almost-silent has been replaced by "
"--follow-imports=errors", file=sys.stderr)
if options.follow_imports == 'normal':
options.follow_imports = 'errors'
elif special_opts.silent_imports:
print("Warning: --silent-imports has been replaced by "
"--ignore-missing-imports --follow-imports=skip", file=sys.stderr)
options.ignore_missing_imports = True
if options.follow_imports == 'normal':
options.follow_imports = 'skip'
if special_opts.dirty_stubs:
print("Warning: -f/--dirty-stubs is deprecated and no longer necessary. Mypy no longer "
"checks the git status of stubs.",
file=sys.stderr)
if special_opts.fast_parser:
print("Warning: --fast-parser is now the default (and only) parser.")
if special_opts.no_fast_parser:
print("Warning: --no-fast-parser no longer has any effect. The fast parser "
"is now mypy's default and only parser.")
try:
infer_python_version_and_executable(options, special_opts)
except PythonExecutableInferenceError as e:
parser.error(str(e))
if special_opts.no_executable:
options.python_executable = None
# Check for invalid argument combinations.
if require_targets:
code_methods = sum(bool(c) for c in [special_opts.modules + special_opts.packages,
special_opts.command,
special_opts.files])
if code_methods == 0:
parser.error("Missing target module, package, files, or command.")
elif code_methods > 1:
parser.error("May only specify one of: module/package, files, or command.")
# Check for overlapping `--always-true` and `--always-false` flags.
overlap = set(options.always_true) & set(options.always_false)
if overlap:
parser.error("You can't make a variable always true and always false (%s)" %
', '.join(sorted(overlap)))
# Set build flags.
if options.strict_optional_whitelist is not None:
# TODO: Deprecate, then kill this flag
options.strict_optional = True
if special_opts.find_occurrences:
experiments.find_occurrences = special_opts.find_occurrences.split('.')
assert experiments.find_occurrences is not None
if len(experiments.find_occurrences) < 2:
parser.error("Can only find occurrences of class members.")
if len(experiments.find_occurrences) != 2:
parser.error("Can only find occurrences of non-nested class members.")
# Set reports.
for flag, val in vars(special_opts).items():
if flag.endswith('_report') and val is not None:
report_type = flag[:-7].replace('_', '-')
report_dir = val
options.report_dirs[report_type] = report_dir
# Process --package-root.
if options.package_root:
process_package_roots(fscache, parser, options)
# Process --cache-map.
if special_opts.cache_map:
process_cache_map(parser, special_opts, options)
# Let quick_and_dirty imply incremental.
if options.quick_and_dirty:
options.incremental = True
# Set target.
if special_opts.modules + special_opts.packages:
options.build_type = BuildType.MODULE
lib_path = [os.getcwd()] + build.mypy_path()
targets = []
# TODO: use the same cache that the BuildManager will
cache = build.FindModuleCache(fscache)
for p in special_opts.packages:
if os.sep in p or os.altsep and os.altsep in p:
fail("Package name '{}' cannot have a slash in it.".format(p))
p_targets = cache.find_modules_recursive(p, tuple(lib_path), options.python_executable)
if not p_targets:
fail("Can't find package '{}'".format(p))
targets.extend(p_targets)
for m in special_opts.modules:
targets.append(BuildSource(None, m, None))
return targets, options
elif special_opts.command:
options.build_type = BuildType.PROGRAM_TEXT
targets = [BuildSource(None, None, '\n'.join(special_opts.command))]
return targets, options
else:
try:
targets = create_source_list(special_opts.files, options, fscache)
except InvalidSourceList as e:
fail(str(e))
return targets, options
def run_case_step(self, testcase: DataDrivenTestCase,
incremental_step: int) -> None:
bench = testcase.config.getoption(
'--bench', False) and 'Benchmark' in testcase.name
options = Options()
options.use_builtins_fixtures = True
options.show_traceback = True
options.strict_optional = True
# N.B: We try to (and ought to!) run with the current
# version of python, since we are going to link and run
# against the current version of python.
# But a lot of the tests use type annotations so we can't say it is 3.5.
options.python_version = max(sys.version_info[:2], (3, 6))
options.export_types = True
options.preserve_asts = True
options.incremental = False
# Avoid checking modules/packages named 'unchecked', to provide a way
# to test interacting with code we don't have types for.
options.per_module_options['unchecked.*'] = {'follow_imports': 'error'}
source = build.BuildSource('native.py', 'native', None)
sources = [source]
module_names = ['native']
module_paths = ['native.py']
# Hard code another module name to compile in the same compilation unit.
to_delete = []
for fn, text in testcase.files:
fn = os.path.relpath(fn, test_temp_dir)
if os.path.basename(fn).startswith('other') and fn.endswith('.py'):
name = os.path.basename(fn).split('.')[0]
module_names.append(name)
sources.append(build.BuildSource(fn, name, None))
to_delete.append(fn)
module_paths.append(fn)
shutil.copyfile(
fn,
os.path.join(os.path.dirname(fn),
name + '_interpreted.py'))
for source in sources:
options.per_module_options.setdefault(source.module,
{})['mypyc'] = True
separate = (self.get_separate('\n'.join(
testcase.input), incremental_step) if self.separate else False)
groups = construct_groups(sources, separate, len(module_names) > 1)
try:
result = emitmodule.parse_and_typecheck(sources=sources,
options=options,
alt_lib_path='.')
errors = Errors()
compiler_options = CompilerOptions(multi_file=self.multi_file,
separate=self.separate)
ir, cfiles = emitmodule.compile_modules_to_c(
result,
compiler_options=compiler_options,
errors=errors,
groups=groups,
)
if errors.num_errors:
errors.flush_errors()
assert False, "Compile error"
except CompileError as e:
for line in e.messages:
print(line)
assert False, 'Compile error'
# Check that serialization works on this IR
check_serialization_roundtrip(ir)
setup_file = os.path.abspath(os.path.join(WORKDIR, 'setup.py'))
# We pass the C file information to the build script via setup.py unfortunately
with open(setup_file, 'w', encoding='utf-8') as f:
f.write(
setup_format.format(module_paths, separate, cfiles,
self.multi_file))
if not run_setup(setup_file, ['build_ext', '--inplace']):
if testcase.config.getoption('--mypyc-showc'):
show_c(cfiles)
assert False, "Compilation failed"
# Assert that an output file got created
suffix = 'pyd' if sys.platform == 'win32' else 'so'
assert glob.glob('native.*.{}'.format(suffix))
driver_path = 'driver.py'
env = os.environ.copy()
env['MYPYC_RUN_BENCH'] = '1' if bench else '0'
# XXX: This is an ugly hack.
if 'MYPYC_RUN_GDB' in os.environ:
if platform.system() == 'Darwin':
subprocess.check_call(
['lldb', '--', sys.executable, driver_path], env=env)
assert False, (
"Test can't pass in lldb mode. (And remember to pass -s to "
"pytest)")
elif platform.system() == 'Linux':
subprocess.check_call(
['gdb', '--args', sys.executable, driver_path], env=env)
assert False, (
"Test can't pass in gdb mode. (And remember to pass -s to "
"pytest)")
else:
assert False, 'Unsupported OS'
proc = subprocess.Popen([sys.executable, driver_path],
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
env=env)
output = proc.communicate()[0].decode('utf8')
outlines = output.splitlines()
if testcase.config.getoption('--mypyc-showc'):
show_c(cfiles)
if proc.returncode != 0:
print()
print('*** Exit status: %d' % proc.returncode)
# Verify output.
if bench:
print('Test output:')
print(output)
else:
if incremental_step == 1:
msg = 'Invalid output'
expected = testcase.output
else:
msg = 'Invalid output (step {})'.format(incremental_step)
expected = testcase.output2.get(incremental_step, [])
assert_test_output(testcase, outlines, msg, expected)
if incremental_step > 1 and options.incremental:
suffix = '' if incremental_step == 2 else str(incremental_step - 1)
expected_rechecked = testcase.expected_rechecked_modules.get(
incremental_step - 1)
if expected_rechecked is not None:
assert_module_equivalence('rechecked' + suffix,
expected_rechecked,
result.manager.rechecked_modules)
expected_stale = testcase.expected_stale_modules.get(
incremental_step - 1)
if expected_stale is not None:
assert_module_equivalence('stale' + suffix, expected_stale,
result.manager.stale_modules)
assert proc.returncode == 0
def test_stubs(args: argparse.Namespace,
use_builtins_fixtures: bool = False) -> int:
"""This is stubtest! It's time to test the stubs!"""
# Load the allowlist. This is a series of strings corresponding to Error.object_desc
# Values in the dict will store whether we used the allowlist entry or not.
allowlist = {
entry: False
for allowlist_file in args.allowlist
for entry in get_allowlist_entries(allowlist_file)
}
allowlist_regexes = {entry: re.compile(entry) for entry in allowlist}
# If we need to generate an allowlist, we store Error.object_desc for each error here.
generated_allowlist = set()
modules = args.modules
if args.check_typeshed:
assert not args.modules, "Cannot pass both --check-typeshed and a list of modules"
modules = get_typeshed_stdlib_modules(args.custom_typeshed_dir)
annoying_modules = {"antigravity", "this"}
modules = [m for m in modules if m not in annoying_modules]
assert modules, "No modules to check"
options = Options()
options.incremental = False
options.custom_typeshed_dir = args.custom_typeshed_dir
options.config_file = args.mypy_config_file
options.use_builtins_fixtures = use_builtins_fixtures
if options.config_file:
def set_strict_flags() -> None: # not needed yet
return
parse_config_file(options, set_strict_flags, options.config_file,
sys.stdout, sys.stderr)
try:
modules = build_stubs(modules,
options,
find_submodules=not args.check_typeshed)
except RuntimeError:
return 1
exit_code = 0
for module in modules:
for error in test_module(module):
# Filter errors
if args.ignore_missing_stub and error.is_missing_stub():
continue
if args.ignore_positional_only and error.is_positional_only_related(
):
continue
if error.object_desc in allowlist:
allowlist[error.object_desc] = True
continue
is_allowlisted = False
for w in allowlist:
if allowlist_regexes[w].fullmatch(error.object_desc):
allowlist[w] = True
is_allowlisted = True
break
if is_allowlisted:
continue
# We have errors, so change exit code, and output whatever necessary
exit_code = 1
if args.generate_allowlist:
generated_allowlist.add(error.object_desc)
continue
print(error.get_description(concise=args.concise))
# Print unused allowlist entries
if not args.ignore_unused_allowlist:
for w in allowlist:
# Don't consider an entry unused if it regex-matches the empty string
# This lets us allowlist errors that don't manifest at all on some systems
if not allowlist[w] and not allowlist_regexes[w].fullmatch(""):
exit_code = 1
print("note: unused allowlist entry {}".format(w))
# Print the generated allowlist
if args.generate_allowlist:
for e in sorted(generated_allowlist):
print(e)
exit_code = 0
return exit_code
def test_stubs(args: argparse.Namespace) -> int:
"""This is stubtest! It's time to test the stubs!"""
# Load the whitelist. This is a series of strings corresponding to Error.object_desc
# Values in the dict will store whether we used the whitelist entry or not.
whitelist = {
entry: False
for whitelist_file in args.whitelist
for entry in get_whitelist_entries(whitelist_file)
}
# If we need to generate a whitelist, we store Error.object_desc for each error here.
generated_whitelist = set()
modules = args.modules
if args.check_typeshed:
assert not args.modules, "Cannot pass both --check-typeshed and a list of modules"
modules = get_typeshed_stdlib_modules(args.custom_typeshed_dir)
modules.remove("antigravity") # it's super annoying
assert modules, "No modules to check"
options = Options()
options.incremental = False
options.custom_typeshed_dir = args.custom_typeshed_dir
try:
modules = build_stubs(modules, options, find_submodules=not args.check_typeshed)
except RuntimeError:
return 1
exit_code = 0
for module in modules:
for error in test_module(module):
# Filter errors
if args.ignore_missing_stub and error.is_missing_stub():
continue
if args.ignore_positional_only and error.is_positional_only_related():
continue
if error.object_desc in whitelist:
whitelist[error.object_desc] = True
continue
# We have errors, so change exit code, and output whatever necessary
exit_code = 1
if args.generate_whitelist:
generated_whitelist.add(error.object_desc)
continue
print(error.get_description(concise=args.concise))
# Print unused whitelist entries
for w in whitelist:
if not whitelist[w]:
exit_code = 1
print("note: unused whitelist entry {}".format(w))
# Print the generated whitelist
if args.generate_whitelist:
for e in sorted(generated_whitelist):
print(e)
exit_code = 0
return exit_code
def run_case_step(self, testcase: DataDrivenTestCase, incremental_step: int) -> None:
bench = testcase.config.getoption('--bench', False) and 'Benchmark' in testcase.name
options = Options()
options.use_builtins_fixtures = True
options.show_traceback = True
options.strict_optional = True
options.python_version = sys.version_info[:2]
options.export_types = True
options.preserve_asts = True
options.incremental = self.separate
# Avoid checking modules/packages named 'unchecked', to provide a way
# to test interacting with code we don't have types for.
options.per_module_options['unchecked.*'] = {'follow_imports': 'error'}
source = build.BuildSource('native.py', 'native', None)
sources = [source]
module_names = ['native']
module_paths = ['native.py']
# Hard code another module name to compile in the same compilation unit.
to_delete = []
for fn, text in testcase.files:
fn = os.path.relpath(fn, test_temp_dir)
if os.path.basename(fn).startswith('other') and fn.endswith('.py'):
name = fn.split('.')[0].replace(os.sep, '.')
module_names.append(name)
sources.append(build.BuildSource(fn, name, None))
to_delete.append(fn)
module_paths.append(fn)
shutil.copyfile(fn,
os.path.join(os.path.dirname(fn), name + '_interpreted.py'))
for source in sources:
options.per_module_options.setdefault(source.module, {})['mypyc'] = True
separate = (self.get_separate('\n'.join(testcase.input), incremental_step) if self.separate
else False)
groups = construct_groups(sources, separate, len(module_names) > 1)
try:
compiler_options = CompilerOptions(multi_file=self.multi_file, separate=self.separate)
result = emitmodule.parse_and_typecheck(
sources=sources,
options=options,
compiler_options=compiler_options,
groups=groups,
alt_lib_path='.')
errors = Errors()
ir, cfiles = emitmodule.compile_modules_to_c(
result,
compiler_options=compiler_options,
errors=errors,
groups=groups,
)
if errors.num_errors:
errors.flush_errors()
assert False, "Compile error"
except CompileError as e:
for line in e.messages:
print(fix_native_line_number(line, testcase.file, testcase.line))
assert False, 'Compile error'
# Check that serialization works on this IR. (Only on the first
# step because the the returned ir only includes updated code.)
if incremental_step == 1:
check_serialization_roundtrip(ir)
opt_level = int(os.environ.get('MYPYC_OPT_LEVEL', 0))
debug_level = int(os.environ.get('MYPYC_DEBUG_LEVEL', 0))
setup_file = os.path.abspath(os.path.join(WORKDIR, 'setup.py'))
# We pass the C file information to the build script via setup.py unfortunately
with open(setup_file, 'w', encoding='utf-8') as f:
f.write(setup_format.format(module_paths,
separate,
cfiles,
self.multi_file,
opt_level,
debug_level))
if not run_setup(setup_file, ['build_ext', '--inplace']):
if testcase.config.getoption('--mypyc-showc'):
show_c(cfiles)
assert False, "Compilation failed"
# Assert that an output file got created
suffix = 'pyd' if sys.platform == 'win32' else 'so'
assert glob.glob(f'native.*.{suffix}') or glob.glob(f'native.{suffix}')
driver_path = 'driver.py'
if not os.path.isfile(driver_path):
# No driver.py provided by test case. Use the default one
# (mypyc/test-data/driver/driver.py) that calls each
# function named test_*.
default_driver = os.path.join(
os.path.dirname(__file__), '..', 'test-data', 'driver', 'driver.py')
shutil.copy(default_driver, driver_path)
env = os.environ.copy()
env['MYPYC_RUN_BENCH'] = '1' if bench else '0'
# XXX: This is an ugly hack.
if 'MYPYC_RUN_GDB' in os.environ:
if platform.system() == 'Darwin':
subprocess.check_call(['lldb', '--', sys.executable, driver_path], env=env)
assert False, ("Test can't pass in lldb mode. (And remember to pass -s to "
"pytest)")
elif platform.system() == 'Linux':
subprocess.check_call(['gdb', '--args', sys.executable, driver_path], env=env)
assert False, ("Test can't pass in gdb mode. (And remember to pass -s to "
"pytest)")
else:
assert False, 'Unsupported OS'
proc = subprocess.Popen([sys.executable, driver_path], stdout=subprocess.PIPE,
stderr=subprocess.STDOUT, env=env)
output = proc.communicate()[0].decode('utf8')
outlines = output.splitlines()
if testcase.config.getoption('--mypyc-showc'):
show_c(cfiles)
if proc.returncode != 0:
print()
print('*** Exit status: %d' % proc.returncode)
# Verify output.
if bench:
print('Test output:')
print(output)
else:
if incremental_step == 1:
msg = 'Invalid output'
expected = testcase.output
else:
msg = f'Invalid output (step {incremental_step})'
expected = testcase.output2.get(incremental_step, [])
if not expected:
# Tweak some line numbers, but only if the expected output is empty,
# as tweaked output might not match expected output.
outlines = [fix_native_line_number(line, testcase.file, testcase.line)
for line in outlines]
assert_test_output(testcase, outlines, msg, expected)
if incremental_step > 1 and options.incremental:
suffix = '' if incremental_step == 2 else str(incremental_step - 1)
expected_rechecked = testcase.expected_rechecked_modules.get(incremental_step - 1)
if expected_rechecked is not None:
assert_module_equivalence(
'rechecked' + suffix,
expected_rechecked, result.manager.rechecked_modules)
expected_stale = testcase.expected_stale_modules.get(incremental_step - 1)
if expected_stale is not None:
assert_module_equivalence(
'stale' + suffix,
expected_stale, result.manager.stale_modules)
assert proc.returncode == 0
