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Diffstat (limited to '.venv/lib/python3.12/site-packages/pip/_internal/locations/__init__.py')
| -rw-r--r-- | .venv/lib/python3.12/site-packages/pip/_internal/locations/__init__.py | 456 |
1 files changed, 456 insertions, 0 deletions
diff --git a/.venv/lib/python3.12/site-packages/pip/_internal/locations/__init__.py b/.venv/lib/python3.12/site-packages/pip/_internal/locations/__init__.py new file mode 100644 index 00000000..32382be7 --- /dev/null +++ b/.venv/lib/python3.12/site-packages/pip/_internal/locations/__init__.py @@ -0,0 +1,456 @@ +import functools +import logging +import os +import pathlib +import sys +import sysconfig +from typing import Any, Dict, Generator, Optional, Tuple + +from pip._internal.models.scheme import SCHEME_KEYS, Scheme +from pip._internal.utils.compat import WINDOWS +from pip._internal.utils.deprecation import deprecated +from pip._internal.utils.virtualenv import running_under_virtualenv + +from . import _sysconfig +from .base import ( + USER_CACHE_DIR, + get_major_minor_version, + get_src_prefix, + is_osx_framework, + site_packages, + user_site, +) + +__all__ = [ + "USER_CACHE_DIR", + "get_bin_prefix", + "get_bin_user", + "get_major_minor_version", + "get_platlib", + "get_purelib", + "get_scheme", + "get_src_prefix", + "site_packages", + "user_site", +] + + +logger = logging.getLogger(__name__) + + +_PLATLIBDIR: str = getattr(sys, "platlibdir", "lib") + +_USE_SYSCONFIG_DEFAULT = sys.version_info >= (3, 10) + + +def _should_use_sysconfig() -> bool: + """This function determines the value of _USE_SYSCONFIG. + + By default, pip uses sysconfig on Python 3.10+. + But Python distributors can override this decision by setting: + sysconfig._PIP_USE_SYSCONFIG = True / False + Rationale in https://github.com/pypa/pip/issues/10647 + + This is a function for testability, but should be constant during any one + run. + """ + return bool(getattr(sysconfig, "_PIP_USE_SYSCONFIG", _USE_SYSCONFIG_DEFAULT)) + + +_USE_SYSCONFIG = _should_use_sysconfig() + +if not _USE_SYSCONFIG: + # Import distutils lazily to avoid deprecation warnings, + # but import it soon enough that it is in memory and available during + # a pip reinstall. + from . import _distutils + +# Be noisy about incompatibilities if this platforms "should" be using +# sysconfig, but is explicitly opting out and using distutils instead. +if _USE_SYSCONFIG_DEFAULT and not _USE_SYSCONFIG: + _MISMATCH_LEVEL = logging.WARNING +else: + _MISMATCH_LEVEL = logging.DEBUG + + +def _looks_like_bpo_44860() -> bool: + """The resolution to bpo-44860 will change this incorrect platlib. + + See <https://bugs.python.org/issue44860>. + """ + from distutils.command.install import INSTALL_SCHEMES + + try: + unix_user_platlib = INSTALL_SCHEMES["unix_user"]["platlib"] + except KeyError: + return False + return unix_user_platlib == "$usersite" + + +def _looks_like_red_hat_patched_platlib_purelib(scheme: Dict[str, str]) -> bool: + platlib = scheme["platlib"] + if "/$platlibdir/" in platlib: + platlib = platlib.replace("/$platlibdir/", f"/{_PLATLIBDIR}/") + if "/lib64/" not in platlib: + return False + unpatched = platlib.replace("/lib64/", "/lib/") + return unpatched.replace("$platbase/", "$base/") == scheme["purelib"] + + +@functools.lru_cache(maxsize=None) +def _looks_like_red_hat_lib() -> bool: + """Red Hat patches platlib in unix_prefix and unix_home, but not purelib. + + This is the only way I can see to tell a Red Hat-patched Python. + """ + from distutils.command.install import INSTALL_SCHEMES + + return all( + k in INSTALL_SCHEMES + and _looks_like_red_hat_patched_platlib_purelib(INSTALL_SCHEMES[k]) + for k in ("unix_prefix", "unix_home") + ) + + +@functools.lru_cache(maxsize=None) +def _looks_like_debian_scheme() -> bool: + """Debian adds two additional schemes.""" + from distutils.command.install import INSTALL_SCHEMES + + return "deb_system" in INSTALL_SCHEMES and "unix_local" in INSTALL_SCHEMES + + +@functools.lru_cache(maxsize=None) +def _looks_like_red_hat_scheme() -> bool: + """Red Hat patches ``sys.prefix`` and ``sys.exec_prefix``. + + Red Hat's ``00251-change-user-install-location.patch`` changes the install + command's ``prefix`` and ``exec_prefix`` to append ``"/local"``. This is + (fortunately?) done quite unconditionally, so we create a default command + object without any configuration to detect this. + """ + from distutils.command.install import install + from distutils.dist import Distribution + + cmd: Any = install(Distribution()) + cmd.finalize_options() + return ( + cmd.exec_prefix == f"{os.path.normpath(sys.exec_prefix)}/local" + and cmd.prefix == f"{os.path.normpath(sys.prefix)}/local" + ) + + +@functools.lru_cache(maxsize=None) +def _looks_like_slackware_scheme() -> bool: + """Slackware patches sysconfig but fails to patch distutils and site. + + Slackware changes sysconfig's user scheme to use ``"lib64"`` for the lib + path, but does not do the same to the site module. + """ + if user_site is None: # User-site not available. + return False + try: + paths = sysconfig.get_paths(scheme="posix_user", expand=False) + except KeyError: # User-site not available. + return False + return "/lib64/" in paths["purelib"] and "/lib64/" not in user_site + + +@functools.lru_cache(maxsize=None) +def _looks_like_msys2_mingw_scheme() -> bool: + """MSYS2 patches distutils and sysconfig to use a UNIX-like scheme. + + However, MSYS2 incorrectly patches sysconfig ``nt`` scheme. The fix is + likely going to be included in their 3.10 release, so we ignore the warning. + See msys2/MINGW-packages#9319. + + MSYS2 MINGW's patch uses lowercase ``"lib"`` instead of the usual uppercase, + and is missing the final ``"site-packages"``. + """ + paths = sysconfig.get_paths("nt", expand=False) + return all( + "Lib" not in p and "lib" in p and not p.endswith("site-packages") + for p in (paths[key] for key in ("platlib", "purelib")) + ) + + +def _fix_abiflags(parts: Tuple[str]) -> Generator[str, None, None]: + ldversion = sysconfig.get_config_var("LDVERSION") + abiflags = getattr(sys, "abiflags", None) + + # LDVERSION does not end with sys.abiflags. Just return the path unchanged. + if not ldversion or not abiflags or not ldversion.endswith(abiflags): + yield from parts + return + + # Strip sys.abiflags from LDVERSION-based path components. + for part in parts: + if part.endswith(ldversion): + part = part[: (0 - len(abiflags))] + yield part + + +@functools.lru_cache(maxsize=None) +def _warn_mismatched(old: pathlib.Path, new: pathlib.Path, *, key: str) -> None: + issue_url = "https://github.com/pypa/pip/issues/10151" + message = ( + "Value for %s does not match. Please report this to <%s>" + "\ndistutils: %s" + "\nsysconfig: %s" + ) + logger.log(_MISMATCH_LEVEL, message, key, issue_url, old, new) + + +def _warn_if_mismatch(old: pathlib.Path, new: pathlib.Path, *, key: str) -> bool: + if old == new: + return False + _warn_mismatched(old, new, key=key) + return True + + +@functools.lru_cache(maxsize=None) +def _log_context( + *, + user: bool = False, + home: Optional[str] = None, + root: Optional[str] = None, + prefix: Optional[str] = None, +) -> None: + parts = [ + "Additional context:", + "user = %r", + "home = %r", + "root = %r", + "prefix = %r", + ] + + logger.log(_MISMATCH_LEVEL, "\n".join(parts), user, home, root, prefix) + + +def get_scheme( + dist_name: str, + user: bool = False, + home: Optional[str] = None, + root: Optional[str] = None, + isolated: bool = False, + prefix: Optional[str] = None, +) -> Scheme: + new = _sysconfig.get_scheme( + dist_name, + user=user, + home=home, + root=root, + isolated=isolated, + prefix=prefix, + ) + if _USE_SYSCONFIG: + return new + + old = _distutils.get_scheme( + dist_name, + user=user, + home=home, + root=root, + isolated=isolated, + prefix=prefix, + ) + + warning_contexts = [] + for k in SCHEME_KEYS: + old_v = pathlib.Path(getattr(old, k)) + new_v = pathlib.Path(getattr(new, k)) + + if old_v == new_v: + continue + + # distutils incorrectly put PyPy packages under ``site-packages/python`` + # in the ``posix_home`` scheme, but PyPy devs said they expect the + # directory name to be ``pypy`` instead. So we treat this as a bug fix + # and not warn about it. See bpo-43307 and python/cpython#24628. + skip_pypy_special_case = ( + sys.implementation.name == "pypy" + and home is not None + and k in ("platlib", "purelib") + and old_v.parent == new_v.parent + and old_v.name.startswith("python") + and new_v.name.startswith("pypy") + ) + if skip_pypy_special_case: + continue + + # sysconfig's ``osx_framework_user`` does not include ``pythonX.Y`` in + # the ``include`` value, but distutils's ``headers`` does. We'll let + # CPython decide whether this is a bug or feature. See bpo-43948. + skip_osx_framework_user_special_case = ( + user + and is_osx_framework() + and k == "headers" + and old_v.parent.parent == new_v.parent + and old_v.parent.name.startswith("python") + ) + if skip_osx_framework_user_special_case: + continue + + # On Red Hat and derived Linux distributions, distutils is patched to + # use "lib64" instead of "lib" for platlib. + if k == "platlib" and _looks_like_red_hat_lib(): + continue + + # On Python 3.9+, sysconfig's posix_user scheme sets platlib against + # sys.platlibdir, but distutils's unix_user incorrectly coninutes + # using the same $usersite for both platlib and purelib. This creates a + # mismatch when sys.platlibdir is not "lib". + skip_bpo_44860 = ( + user + and k == "platlib" + and not WINDOWS + and sys.version_info >= (3, 9) + and _PLATLIBDIR != "lib" + and _looks_like_bpo_44860() + ) + if skip_bpo_44860: + continue + + # Slackware incorrectly patches posix_user to use lib64 instead of lib, + # but not usersite to match the location. + skip_slackware_user_scheme = ( + user + and k in ("platlib", "purelib") + and not WINDOWS + and _looks_like_slackware_scheme() + ) + if skip_slackware_user_scheme: + continue + + # Both Debian and Red Hat patch Python to place the system site under + # /usr/local instead of /usr. Debian also places lib in dist-packages + # instead of site-packages, but the /usr/local check should cover it. + skip_linux_system_special_case = ( + not (user or home or prefix or running_under_virtualenv()) + and old_v.parts[1:3] == ("usr", "local") + and len(new_v.parts) > 1 + and new_v.parts[1] == "usr" + and (len(new_v.parts) < 3 or new_v.parts[2] != "local") + and (_looks_like_red_hat_scheme() or _looks_like_debian_scheme()) + ) + if skip_linux_system_special_case: + continue + + # MSYS2 MINGW's sysconfig patch does not include the "site-packages" + # part of the path. This is incorrect and will be fixed in MSYS. + skip_msys2_mingw_bug = ( + WINDOWS and k in ("platlib", "purelib") and _looks_like_msys2_mingw_scheme() + ) + if skip_msys2_mingw_bug: + continue + + # CPython's POSIX install script invokes pip (via ensurepip) against the + # interpreter located in the source tree, not the install site. This + # triggers special logic in sysconfig that's not present in distutils. + # https://github.com/python/cpython/blob/8c21941ddaf/Lib/sysconfig.py#L178-L194 + skip_cpython_build = ( + sysconfig.is_python_build(check_home=True) + and not WINDOWS + and k in ("headers", "include", "platinclude") + ) + if skip_cpython_build: + continue + + warning_contexts.append((old_v, new_v, f"scheme.{k}")) + + if not warning_contexts: + return old + + # Check if this path mismatch is caused by distutils config files. Those + # files will no longer work once we switch to sysconfig, so this raises a + # deprecation message for them. + default_old = _distutils.distutils_scheme( + dist_name, + user, + home, + root, + isolated, + prefix, + ignore_config_files=True, + ) + if any(default_old[k] != getattr(old, k) for k in SCHEME_KEYS): + deprecated( + reason=( + "Configuring installation scheme with distutils config files " + "is deprecated and will no longer work in the near future. If you " + "are using a Homebrew or Linuxbrew Python, please see discussion " + "at https://github.com/Homebrew/homebrew-core/issues/76621" + ), + replacement=None, + gone_in=None, + ) + return old + + # Post warnings about this mismatch so user can report them back. + for old_v, new_v, key in warning_contexts: + _warn_mismatched(old_v, new_v, key=key) + _log_context(user=user, home=home, root=root, prefix=prefix) + + return old + + +def get_bin_prefix() -> str: + new = _sysconfig.get_bin_prefix() + if _USE_SYSCONFIG: + return new + + old = _distutils.get_bin_prefix() + if _warn_if_mismatch(pathlib.Path(old), pathlib.Path(new), key="bin_prefix"): + _log_context() + return old + + +def get_bin_user() -> str: + return _sysconfig.get_scheme("", user=True).scripts + + +def _looks_like_deb_system_dist_packages(value: str) -> bool: + """Check if the value is Debian's APT-controlled dist-packages. + + Debian's ``distutils.sysconfig.get_python_lib()`` implementation returns the + default package path controlled by APT, but does not patch ``sysconfig`` to + do the same. This is similar to the bug worked around in ``get_scheme()``, + but here the default is ``deb_system`` instead of ``unix_local``. Ultimately + we can't do anything about this Debian bug, and this detection allows us to + skip the warning when needed. + """ + if not _looks_like_debian_scheme(): + return False + if value == "/usr/lib/python3/dist-packages": + return True + return False + + +def get_purelib() -> str: + """Return the default pure-Python lib location.""" + new = _sysconfig.get_purelib() + if _USE_SYSCONFIG: + return new + + old = _distutils.get_purelib() + if _looks_like_deb_system_dist_packages(old): + return old + if _warn_if_mismatch(pathlib.Path(old), pathlib.Path(new), key="purelib"): + _log_context() + return old + + +def get_platlib() -> str: + """Return the default platform-shared lib location.""" + new = _sysconfig.get_platlib() + if _USE_SYSCONFIG: + return new + + from . import _distutils + + old = _distutils.get_platlib() + if _looks_like_deb_system_dist_packages(old): + return old + if _warn_if_mismatch(pathlib.Path(old), pathlib.Path(new), key="platlib"): + _log_context() + return old |