def test_disable_hooks(self):
"""
Tests the old (deprecated) names. These deprecated aliases should be
removed by version 1.0
"""
example_PY2_check = False
standard_library.enable_hooks() # deprecated name
old_meta_path = copy.copy(sys.meta_path)
standard_library.disable_hooks()
standard_library.scrub_future_sys_modules()
if utils.PY2:
self.assertTrue(len(old_meta_path) == len(sys.meta_path) + 1)
else:
self.assertTrue(len(old_meta_path) == len(sys.meta_path))
# An example of fragile import code that we don't want to break:
try:
import builtins
except ImportError:
example_PY2_check = True
if utils.PY2:
self.assertTrue(example_PY2_check)
else:
self.assertFalse(example_PY2_check)
standard_library.install_hooks()
# Imports should succeed again now:
import builtins
import html
if utils.PY2:
self.assertTrue(standard_library.detect_hooks())
self.assertTrue(len(old_meta_path) == len(sys.meta_path))
def test_disable_hooks(self):
"""
Tests the old (deprecated) names. These deprecated aliases should be
removed by version 1.0
"""
example_PY2_check = False
standard_library.enable_hooks() # deprecated name
old_meta_path = copy.copy(sys.meta_path)
standard_library.disable_hooks()
standard_library.scrub_future_sys_modules()
if utils.PY2:
self.assertTrue(len(old_meta_path) == len(sys.meta_path) + 1)
else:
self.assertTrue(len(old_meta_path) == len(sys.meta_path))
# An example of fragile import code that we don't want to break:
try:
import builtins
except ImportError:
example_PY2_check = True
if utils.PY2:
self.assertTrue(example_PY2_check)
else:
self.assertFalse(example_PY2_check)
standard_library.install_hooks()
# Imports should succeed again now:
import builtins
import html
if utils.PY2:
self.assertTrue(standard_library.detect_hooks())
self.assertTrue(len(old_meta_path) == len(sys.meta_path))
def run_pyflakes_for_package(package_name, extra_ignore=None):
"""
If pyflakes is installed, run it across the given package name
returning any warnings found.
"""
# Pyflakes v0.6.1 incorrectly assumes we're running under Python 3
# if "import builtins" succeeds, which it does with "from future
# import standard_library" in effect.
standard_library.disable_hooks()
from pyflakes.checker import Checker
standard_library.enable_hooks()
def pyflakes_checker(path):
with open(path, "U") as source_file:
source = source_file.read()
try:
tree = compile(source, path, "exec", PyCF_ONLY_AST)
except (SyntaxError, IndentationError) as value:
info = (path, value.lineno, value.args[0])
yield "Invalid syntax in %s:%d: %s" % info
else:
result = Checker(tree, path)
for warning in result.messages:
yield str(warning)
args = (pyflakes_checker, package_name, extra_ignore)
return _run_checker_for_package(*args)
def test_disable_hooks(self):
example_PY2_check = False
standard_library.disable_hooks()
# An example of fragile import code that we don't want to break:
try:
import builtins
except ImportError:
example_PY2_check = True
if utils.PY2:
self.assertTrue(example_PY2_check)
else:
self.assertFalse(example_PY2_check)
standard_library.enable_hooks()
# The import should succeed again now:
import builtins
def test_disable_hooks(self):
example_PY2_check = False
standard_library.disable_hooks()
# An example of fragile import code that we don't want to break:
try:
import builtins
except ImportError:
example_PY2_check = True
if utils.PY2:
self.assertTrue(example_PY2_check)
else:
self.assertFalse(example_PY2_check)
standard_library.enable_hooks()
# The import should succeed again now:
import builtins
