You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
85 lines
3.0 KiB
85 lines
3.0 KiB
1 year ago
|
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)
|
||
|
|
binary_executable = os.path.join(binary_prefix, exe_name)
|
||
|
|
if (
|
||
|
|
found_executable
|
||
|
|
and os.path.exists(binary_executable)
|
||
|
|
and os.path.samefile(
|
||
|
|
found_executable,
|
||
|
|
binary_executable,
|
||
|
|
)
|
||
|
|
):
|
||
|
|
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
|