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venv/lib/python3.9/site-packages/setuptools/_path.py

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+import os
+import sys
+from typing import Union
+
+if sys.version_info >= (3, 9):
+    StrPath = Union[str, os.PathLike[str]]  #  Same as _typeshed.StrPath
+else:
+    StrPath = Union[str, os.PathLike]
+
+
+def ensure_directory(path):
+    """Ensure that the parent directory of `path` exists"""
+    dirname = os.path.dirname(path)
+    os.makedirs(dirname, exist_ok=True)
+
+
+def same_path(p1: StrPath, p2: StrPath) -> bool:
+    """Differs from os.path.samefile because it does not require paths to exist.
+    Purely string based (no comparison between i-nodes).
+    >>> same_path("a/b", "./a/b")
+    True
+    >>> same_path("a/b", "a/./b")
+    True
+    >>> same_path("a/b", "././a/b")
+    True
+    >>> same_path("a/b", "./a/b/c/..")
+    True
+    >>> same_path("a/b", "../a/b/c")
+    False
+    >>> same_path("a", "a/b")
+    False
+    """
+    return normpath(p1) == normpath(p2)
+
+
+def normpath(filename: StrPath) -> str:
+    """Normalize a file/dir name for comparison purposes."""
+    # See pkg_resources.normalize_path for notes about cygwin
+    file = os.path.abspath(filename) if sys.platform == 'cygwin' else filename
+    return os.path.normcase(os.path.realpath(os.path.normpath(file)))