def req_error_context(req_description: str) -> Iterator[None]:
try:
yield
except InstallationError as e:
message = "For req: {}. {}".format(req_description, e.args[0])
reraise(InstallationError, InstallationError(message),
sys.exc_info()[2])
def get(self, wrap_exception=False):
"""
Return the return value of this Attempt instance or raise an Exception.
If wrap_exception is true, this Attempt is wrapped inside of a
RetryError before being raised.
"""
if self.has_exception:
if wrap_exception:
raise RetryError(self)
else:
six.reraise(self.value[0], self.value[1], self.value[2])
else:
return self.value
def get(self, wrap_exception=False):
"""
Return the return value of this Attempt instance or raise an Exception.
If wrap_exception is true, this Attempt is wrapped inside of a
RetryError before being raised.
"""
if self.has_exception:
if wrap_exception:
raise RetryError(self)
else:
six.reraise(self.value[0], self.value[1], self.value[2])
else:
return self.value
def from_pip_import(path, attr=None, prepath=None):
"""This encapsulate pip imports between the introduction of pip._internal.
"""
try:
module = importlib.import_module('pip._internal.' + path)
except ImportError:
exc_info = sys.exc_info()
try:
module = importlib.import_module('pip.' + (prepath or path))
except ImportError:
six.reraise(*exc_info) # The pip 10 exception is better.
if not attr:
return module
try:
return getattr(module, attr)
except AttributeError:
raise ImportError('cannot import name {!r}'.format(attr))
def install(
self,
install_options, # type: List[str]
global_options=None, # type: Optional[Sequence[str]]
root=None, # type: Optional[str]
home=None, # type: Optional[str]
prefix=None, # type: Optional[str]
warn_script_location=True, # type: bool
use_user_site=False, # type: bool
pycompile=True # type: bool
):
# type: (...) -> None
scheme = get_scheme(
self.name,
user=use_user_site,
home=home,
root=root,
isolated=self.isolated,
prefix=prefix,
)
global_options = global_options if global_options is not None else []
if self.editable:
install_editable_legacy(
install_options,
global_options,
prefix=prefix,
home=home,
use_user_site=use_user_site,
name=self.name,
setup_py_path=self.setup_py_path,
isolated=self.isolated,
build_env=self.build_env,
unpacked_source_directory=self.unpacked_source_directory,
)
self.install_succeeded = True
return
if self.is_wheel:
assert self.local_file_path
direct_url = None
if self.original_link:
direct_url = direct_url_from_link(
self.original_link,
self.source_dir,
self.original_link_is_in_wheel_cache,
)
install_wheel(
self.name,
self.local_file_path,
scheme=scheme,
req_description=str(self.req),
pycompile=pycompile,
warn_script_location=warn_script_location,
direct_url=direct_url,
)
self.install_succeeded = True
return
# TODO: Why don't we do this for editable installs?
# Extend the list of global and install options passed on to
# the setup.py call with the ones from the requirements file.
# Options specified in requirements file override those
# specified on the command line, since the last option given
# to setup.py is the one that is used.
global_options = list(global_options) + self.global_options
install_options = list(install_options) + self.install_options
try:
success = install_legacy(
install_options=install_options,
global_options=global_options,
root=root,
home=home,
prefix=prefix,
use_user_site=use_user_site,
pycompile=pycompile,
scheme=scheme,
setup_py_path=self.setup_py_path,
isolated=self.isolated,
req_name=self.name,
build_env=self.build_env,
unpacked_source_directory=self.unpacked_source_directory,
req_description=str(self.req),
)
except LegacyInstallFailure as exc:
self.install_succeeded = False
six.reraise(*exc.parent)
except Exception:
self.install_succeeded = True
raise
self.install_succeeded = success
def install(
self,
install_options, # type: List[str]
global_options=None, # type: Optional[Sequence[str]]
root=None, # type: Optional[str]
home=None, # type: Optional[str]
prefix=None, # type: Optional[str]
warn_script_location=True, # type: bool
use_user_site=False, # type: bool
pycompile=True # type: bool
):
# type: (...) -> None
scheme = get_scheme(
name,
user=use_user_site,
home=home,
root=root,
isolated=isolated,
prefix=prefix,
)
global_options = global_options if global_options is not None else []
if editable:
install_editable_legacy(
install_options,
global_options,
prefix=prefix,
home=home,
use_user_site=use_user_site,
name=name,
setup_py_path=setup_py_path,
isolated=isolated,
build_env=build_env,
unpacked_source_directory=unpacked_source_directory,
)
install_succeeded = True
return
if is_wheel:
assert local_file_path
direct_url = None
if original_link:
direct_url = direct_url_from_link(
original_link,
source_dir,
original_link_is_in_wheel_cache,
)
install_wheel(
name,
local_file_path,
scheme=scheme,
req_description=str(req),
pycompile=pycompile,
warn_script_location=warn_script_location,
direct_url=direct_url,
requested=user_supplied,
)
install_succeeded = True
return
# TODO: Why don't we do this for editable installs?
# Extend the list of global and install options passed on to
# the setup.py call with the ones from the requirements file.
# Options specified in requirements file override those
# specified on the command line, since the last option given
# to setup.py is the one that is used.
global_options = list(global_options) + global_options
install_options = list(install_options) + install_options
try:
success = install_legacy(
install_options=install_options,
global_options=global_options,
root=root,
home=home,
prefix=prefix,
use_user_site=use_user_site,
pycompile=pycompile,
scheme=scheme,
setup_py_path=setup_py_path,
isolated=isolated,
req_name=name,
build_env=build_env,
unpacked_source_directory=unpacked_source_directory,
req_description=str(req),
)
except LegacyInstallFailure as exc:
install_succeeded = False
six.reraise(*exc.parent)
except Exception:
install_succeeded = True
raise
install_succeeded = success
if success and legacy_install_reason == 8368:
deprecated(
reason=(
"{} was installed using the legacy 'setup.py install' "
"method, because a wheel could not be built for it.".
format(name)
),
replacement="to fix the wheel build issue reported above",
gone_in="21.0",
issue=8368,
)
__all__ = ['SimpleWheelCache']
import sys
from pip._vendor import six
from ._not import from_pip_import
try:
SimpleWheelCache = from_pip_import('cache', 'SimpleWheelCache')
except ImportError: # Even older versions.
exc_info = sys.exc_info()
try:
from pip.wheel import WheelCache, _cache_for_link
except ImportError:
six.reraise(*exc_info)
class SimpleWheelCache(WheelCache): # noqa
def get_path_for_link(self, link):
return _cache_for_link(self._cache_dir, link)