Merge pull request #144 from diazona/unexpected-keyword-argument-py37/1/dev

Work around keyword arguments missing in older versions of Python

Author: sjlongland

CHANGELOG.rst

@@ -33,6 +33,7 @@ Misc
 ----
 
 - #105
+- #143
 
 
 0.1.0

changelog.d/+py312.misc.txt

@@ -351,7 +351,10 @@ def project(self) -> Project:
         self._project_path.mkdir(exist_ok=True)
         _logger.debug("Extracting to %s", self._project_path)
         with tarfile.open(sdist) as tf:
-            tf.extractall(path=self._project_path, filter="data")
+            try:
+                tf.extractall(path=self._project_path, filter="data")
+            except TypeError:
+                tf.extractall(path=self._project_path)  # for Python <3.8
         abs_project_root: pathlib.Path = self._project_path / self._distribution.project_root
         _logger.debug("Project root: %s", abs_project_root)
         if not (abs_project_root / "setup.py").exists() and not (abs_project_root / "setup.cfg").exists():

test_support/test_support/distribution.py

@@ -2,7 +2,6 @@
 Code for manipulating core metadata
 """
 
-import functools
 import packaging.specifiers
 import packaging.version
 import re
@@ -11,6 +10,14 @@
 from test_support import importlib_metadata
 from typing import Callable, Dict, List, Optional, Tuple, Union
 
+try:
+    from functools import cache
+except ImportError:
+    import functools
+
+    cache = functools.lru_cache(maxsize=128)
+
+
 try:
     from pyproject_metadata import License, Readme, RFC822Message, StandardMetadata
 except ImportError:
@@ -117,7 +124,7 @@ def get(name: str, default: Optional[List[str]] = None) -> List[str]:
 
     metadata_version = packaging.version.Version(_metadata_version_raw[0])
 
-    @functools.cache
+    @cache
     def is_at_least(required: str, *, v=metadata_version):
         return v >= packaging.version.Version(required)