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author | 2022-11-13 23:46:45 +0530 | |
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committer | 2022-11-13 23:46:45 +0530 | |
commit | 9468226a9e2e2ab8cdd599f1d8538e860ca86120 (patch) | |
tree | 0a77ada226d6db80639f96b438bf83e4e756edb5 /env/lib/python3.10/site-packages/pip/_internal/utils/entrypoints.py | |
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Diffstat (limited to 'env/lib/python3.10/site-packages/pip/_internal/utils/entrypoints.py')
-rw-r--r-- | env/lib/python3.10/site-packages/pip/_internal/utils/entrypoints.py | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/env/lib/python3.10/site-packages/pip/_internal/utils/entrypoints.py b/env/lib/python3.10/site-packages/pip/_internal/utils/entrypoints.py new file mode 100644 index 0000000..f292c64 --- /dev/null +++ b/env/lib/python3.10/site-packages/pip/_internal/utils/entrypoints.py @@ -0,0 +1,79 @@ +import itertools +import os +import shutil +import sys +from typing import List, Optional + +from pip._internal.cli.main import main +from pip._internal.utils.compat import WINDOWS + +_EXECUTABLE_NAMES = [ + "pip", + f"pip{sys.version_info.major}", + f"pip{sys.version_info.major}.{sys.version_info.minor}", +] +if WINDOWS: + _allowed_extensions = {"", ".exe"} + _EXECUTABLE_NAMES = [ + "".join(parts) + for parts in itertools.product(_EXECUTABLE_NAMES, _allowed_extensions) + ] + + +def _wrapper(args: Optional[List[str]] = None) -> int: + """Central wrapper for all old entrypoints. + + Historically pip has had several entrypoints defined. Because of issues + arising from PATH, sys.path, multiple Pythons, their interactions, and most + of them having a pip installed, users suffer every time an entrypoint gets + moved. + + To alleviate this pain, and provide a mechanism for warning users and + directing them to an appropriate place for help, we now define all of + our old entrypoints as wrappers for the current one. + """ + sys.stderr.write( + "WARNING: pip is being invoked by an old script wrapper. This will " + "fail in a future version of pip.\n" + "Please see https://github.com/pypa/pip/issues/5599 for advice on " + "fixing the underlying issue.\n" + "To avoid this problem you can invoke Python with '-m pip' instead of " + "running pip directly.\n" + ) + return main(args) + + +def get_best_invocation_for_this_pip() -> str: + """Try to figure out the best way to invoke pip in the current environment.""" + binary_directory = "Scripts" if WINDOWS else "bin" + binary_prefix = os.path.join(sys.prefix, binary_directory) + + # Try to use pip[X[.Y]] names, if those executables for this environment are + # the first on PATH with that name. + path_parts = os.path.normcase(os.environ.get("PATH", "")).split(os.pathsep) + exe_are_in_PATH = os.path.normcase(binary_prefix) in path_parts + if exe_are_in_PATH: + for exe_name in _EXECUTABLE_NAMES: + found_executable = shutil.which(exe_name) + if found_executable and os.path.samefile( + found_executable, + os.path.join(binary_prefix, exe_name), + ): + return exe_name + + # Use the `-m` invocation, if there's no "nice" invocation. + return f"{get_best_invocation_for_this_python()} -m pip" + + +def get_best_invocation_for_this_python() -> str: + """Try to figure out the best way to invoke the current Python.""" + exe = sys.executable + exe_name = os.path.basename(exe) + + # Try to use the basename, if it's the first executable. + found_executable = shutil.which(exe_name) + if found_executable and os.path.samefile(found_executable, exe): + return exe_name + + # Use the full executable name, because we couldn't find something simpler. + return exe |