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- import os
- import site
- import sys
- import sysconfig
- import typing
- from pip._internal.utils import appdirs
- from pip._internal.utils.virtualenv import running_under_virtualenv
- # Application Directories
- USER_CACHE_DIR = appdirs.user_cache_dir("pip")
- # FIXME doesn't account for venv linked to global site-packages
- site_packages = sysconfig.get_path("purelib") # type: typing.Optional[str]
- def get_major_minor_version():
- # type: () -> str
- """
- Return the major-minor version of the current Python as a string, e.g.
- "3.7" or "3.10".
- """
- return "{}.{}".format(*sys.version_info)
- def get_src_prefix():
- # type: () -> str
- if running_under_virtualenv():
- src_prefix = os.path.join(sys.prefix, "src")
- else:
- # FIXME: keep src in cwd for now (it is not a temporary folder)
- try:
- src_prefix = os.path.join(os.getcwd(), "src")
- except OSError:
- # In case the current working directory has been renamed or deleted
- sys.exit("The folder you are executing pip from can no longer be found.")
- # under macOS + virtualenv sys.prefix is not properly resolved
- # it is something like /path/to/python/bin/..
- return os.path.abspath(src_prefix)
- try:
- # Use getusersitepackages if this is present, as it ensures that the
- # value is initialised properly.
- user_site = site.getusersitepackages() # type: typing.Optional[str]
- except AttributeError:
- user_site = site.USER_SITE
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