[compat] Fix compat.WINDOWS_VT_MODE

This commit is contained in:
pukkandan 2022-06-24 15:40:13 +05:30
parent bc40160883
commit 3c5386cd71
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3 changed files with 24 additions and 16 deletions

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@ -26,6 +26,9 @@ class TestCompat(unittest.TestCase):
with self.assertWarns(DeprecationWarning):
compat.compat_basestring
with self.assertWarns(DeprecationWarning):
compat.WINDOWS_VT_MODE
compat.asyncio.events # Must not raise error
def test_compat_getenv(self):

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@ -14,6 +14,7 @@ import urllib
import xml.etree.ElementTree as etree
from subprocess import DEVNULL
from .compat_utils import passthrough_module
from .asyncio import run as compat_asyncio_run # noqa: F401
from .re import Pattern as compat_Pattern # noqa: F401
from .re import match as compat_Match # noqa: F401
@ -22,6 +23,9 @@ from ..dependencies import brotli as compat_brotli # noqa: F401
from ..dependencies import websockets as compat_websockets # noqa: F401
passthrough_module(__name__, '...utils', ('WINDOWS_VT_MODE', 'windows_enable_vt_mode'))
# compat_ctypes_WINFUNCTYPE = ctypes.WINFUNCTYPE
# will not work since ctypes.WINFUNCTYPE does not exist in UNIX machines
def compat_ctypes_WINFUNCTYPE(*args, **kwargs):
@ -55,10 +59,3 @@ compat_xml_parse_error = etree.ParseError
compat_xpath = lambda xpath: xpath
compat_zip = zip
workaround_optparse_bug9161 = lambda: None
def __getattr__(name):
if name in ('WINDOWS_VT_MODE', 'windows_enable_vt_mode'):
from .. import utils
return getattr(utils, name)
raise AttributeError(name)

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@ -31,7 +31,7 @@ def _is_package(module):
return True
def passthrough_module(parent, child, *, callback=lambda _: None):
def passthrough_module(parent, child, allowed_attributes=None, *, callback=lambda _: None):
parent_module = importlib.import_module(parent)
child_module = None # Import child module only as needed
@ -41,22 +41,30 @@ def passthrough_module(parent, child, *, callback=lambda _: None):
with contextlib.suppress(ImportError):
return importlib.import_module(f'.{attr}', parent)
ret = self.__from_child(attr)
if ret is _NO_ATTRIBUTE:
raise AttributeError(f'module {parent} has no attribute {attr}')
callback(attr)
return ret
def __from_child(self, attr):
if allowed_attributes is None:
if attr.startswith('__') and attr.endswith('__'):
return _NO_ATTRIBUTE
elif attr not in allowed_attributes:
return _NO_ATTRIBUTE
nonlocal child_module
child_module = child_module or importlib.import_module(child, parent)
ret = _NO_ATTRIBUTE
with contextlib.suppress(AttributeError):
ret = getattr(child_module, attr)
return getattr(child_module, attr)
if _is_package(child_module):
with contextlib.suppress(ImportError):
ret = importlib.import_module(f'.{attr}', child)
return importlib.import_module(f'.{attr}', child)
if ret is _NO_ATTRIBUTE:
raise AttributeError(f'module {parent} has no attribute {attr}')
callback(attr)
return ret
return _NO_ATTRIBUTE
# Python 3.6 does not have module level __getattr__
# https://peps.python.org/pep-0562/