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author | S. Solomon Darnell | 2025-03-28 21:52:21 -0500 |
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committer | S. Solomon Darnell | 2025-03-28 21:52:21 -0500 |
commit | 4a52a71956a8d46fcb7294ac71734504bb09bcc2 (patch) | |
tree | ee3dc5af3b6313e921cd920906356f5d4febc4ed /.venv/lib/python3.12/site-packages/setuptools/_path.py | |
parent | cc961e04ba734dd72309fb548a2f97d67d578813 (diff) | |
download | gn-ai-4a52a71956a8d46fcb7294ac71734504bb09bcc2.tar.gz |
Diffstat (limited to '.venv/lib/python3.12/site-packages/setuptools/_path.py')
-rw-r--r-- | .venv/lib/python3.12/site-packages/setuptools/_path.py | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/.venv/lib/python3.12/site-packages/setuptools/_path.py b/.venv/lib/python3.12/site-packages/setuptools/_path.py new file mode 100644 index 00000000..0d99b0f5 --- /dev/null +++ b/.venv/lib/python3.12/site-packages/setuptools/_path.py @@ -0,0 +1,84 @@ +from __future__ import annotations + +import contextlib +import os +import sys +from typing import TYPE_CHECKING, TypeVar, Union + +from more_itertools import unique_everseen + +if TYPE_CHECKING: + from typing_extensions import TypeAlias + +StrPath: TypeAlias = Union[str, os.PathLike[str]] # Same as _typeshed.StrPath +StrPathT = TypeVar("StrPathT", bound=Union[str, os.PathLike[str]]) + + +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))) + + +@contextlib.contextmanager +def paths_on_pythonpath(paths): + """ + Add the indicated paths to the head of the PYTHONPATH environment + variable so that subprocesses will also see the packages at + these paths. + + Do this in a context that restores the value on exit. + + >>> getfixture('monkeypatch').setenv('PYTHONPATH', 'anything') + >>> with paths_on_pythonpath(['foo', 'bar']): + ... assert 'foo' in os.environ['PYTHONPATH'] + ... assert 'anything' in os.environ['PYTHONPATH'] + >>> os.environ['PYTHONPATH'] + 'anything' + + >>> getfixture('monkeypatch').delenv('PYTHONPATH') + >>> with paths_on_pythonpath(['foo', 'bar']): + ... assert 'foo' in os.environ['PYTHONPATH'] + >>> os.environ.get('PYTHONPATH') + """ + nothing = object() + orig_pythonpath = os.environ.get('PYTHONPATH', nothing) + current_pythonpath = os.environ.get('PYTHONPATH', '') + try: + prefix = os.pathsep.join(unique_everseen(paths)) + to_join = filter(None, [prefix, current_pythonpath]) + new_path = os.pathsep.join(to_join) + if new_path: + os.environ['PYTHONPATH'] = new_path + yield + finally: + if orig_pythonpath is nothing: + os.environ.pop('PYTHONPATH', None) + else: + os.environ['PYTHONPATH'] = orig_pythonpath |