vendor importlib_metadata separately

metaflow/_vendor/typeguard/_checkers.py

@@ -69,7 +69,7 @@
  from importlib.metadata import entry_points
  from typing import ParamSpec
 else:
- from metaflow._vendor.importlib_metadata import entry_points
+ from importlib_metadata import entry_points
  from metaflow._vendor.typing_extensions import ParamSpec
 
 TypeCheckerCallable: TypeAlias = Callable[

metaflow/_vendor/typeguard/_importhook.py

@@ -29,7 +29,7 @@
 if sys.version_info >= (3, 10):
  from importlib.metadata import PackageNotFoundError, version
 else:
- from metaflow._vendor.importlib_metadata import PackageNotFoundError, version
+ from importlib_metadata import PackageNotFoundError, version
 
 try:
  OPTIMIZATION = "typeguard" + "".join(version("typeguard").split(".")[:3])

metaflow/_vendor/importlib_metadata/__init__.py → metaflow/_vendor/v3_6/importlib_metadata/__init__.py

@@ -3,7 +3,7 @@
 import abc
 import csv
 import sys
-from metaflow._vendor import zipp
+from metaflow._vendor.v3_6 import zipp
 import email
 import pathlib
 import operator

metaflow/_vendor/v3_6/importlib_metadata/_compat.py

@@ -0,0 +1,71 @@
+import sys
+import platform
+
+
+__all__ = ['install', 'NullFinder', 'Protocol']
+
+
+try:
+ from typing import Protocol
+except ImportError: # pragma: no cover
+ from metaflow._vendor.v3_6.typing_extensions import Protocol # type: ignore
+
+
+def install(cls):
+ """
+ Class decorator for installation on sys.meta_path.
+
+ Adds the backport DistributionFinder to sys.meta_path and
+ attempts to disable the finder functionality of the stdlib
+ DistributionFinder.
+ """
+ sys.meta_path.append(cls())
+ disable_stdlib_finder()
+ return cls
+
+
+def disable_stdlib_finder():
+ """
+ Give the backport primacy for discovering path-based distributions
+ by monkey-patching the stdlib O_O.
+
+ See #91 for more background for rationale on this sketchy
+ behavior.
+ """
+
+ def matches(finder):
+ return getattr(
+ finder, '__module__', None
+ ) == '_frozen_importlib_external' and hasattr(finder, 'find_distributions')
+
+ for finder in filter(matches, sys.meta_path): # pragma: nocover
+ del finder.find_distributions
+
+
+class NullFinder:
+ """
+ A "Finder" (aka "MetaClassFinder") that never finds any modules,
+ but may find distributions.
+ """
+
+ @staticmethod
+ def find_spec(*args, **kwargs):
+ return None
+
+ # In Python 2, the import system requires finders
+ # to have a find_module() method, but this usage
+ # is deprecated in Python 3 in favor of find_spec().
+ # For the purposes of this finder (i.e. being present
+ # on sys.meta_path but having no other import
+ # system functionality), the two methods are identical.
+ find_module = find_spec
+
+
+def pypy_partial(val):
+ """
+ Adjust for variable stacklevel on partial under PyPy.
+
+ Workaround for #327.
+ """
+ is_pypy = platform.python_implementation() == 'PyPy'
+ return val + is_pypy

metaflow/_vendor/v3_7/importlib_metadata.LICENSE

@@ -0,0 +1,13 @@
+Copyright 2017-2019 Jason R. Coombs, Barry Warsaw
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.