codekingpro/portable-devtools

1import sys2from ssl import SSLContext3from typing import Any, Optional, Iterable4 5from httpie.cookies import HTTPieCookiePolicy6from http import cookiejar  # noqa7 8 9# Request does not carry the original policy attached to the10# cookie jar, so until it is resolved we change the global cookie11# policy. <https://github.com/psf/requests/issues/5449>12cookiejar.DefaultCookiePolicy = HTTPieCookiePolicy13 14is_windows = 'win32' in str(sys.platform).lower()15is_frozen = getattr(sys, 'frozen', False)16 17MIN_SUPPORTED_PY_VERSION = (3, 7)18MAX_SUPPORTED_PY_VERSION = (3, 11)19 20try:21    from functools import cached_property22except ImportError:23    # Can be removed once we drop Python <3.8 support.24    # Taken from `django.utils.functional.cached_property`.25    class cached_property:26        """27        Decorator that converts a method with a single self argument into a28        property cached on the instance.29 30        A cached property can be made out of an existing method:31        (e.g. ``url = cached_property(get_absolute_url)``).32        The optional ``name`` argument is obsolete as of Python 3.6 and will be33        deprecated in Django 4.0 (#30127).34        """35        name = None36 37        @staticmethod38        def func(instance):39            raise TypeError(40                'Cannot use cached_property instance without calling '41                '__set_name__() on it.'42            )43 44        def __init__(self, func, name=None):45            self.real_func = func46            self.__doc__ = getattr(func, '__doc__')47 48        def __set_name__(self, owner, name):49            if self.name is None:50                self.name = name51                self.func = self.real_func52            elif name != self.name:53                raise TypeError(54                    "Cannot assign the same cached_property to two different names "55                    "(%r and %r)." % (self.name, name)56                )57 58        def __get__(self, instance, cls=None):59            """60            Call the function and put the return value in instance.__dict__ so that61            subsequent attribute access on the instance returns the cached value62            instead of calling cached_property.__get__().63            """64            if instance is None:65                return self66            res = instance.__dict__[self.name] = self.func(instance)67            return res68 69# importlib_metadata was a provisional module, so the APIs changed quite a few times70# between 3.8-3.10. It was also not included in the standard library until 3.8, so71# we install the backport for <3.8.72 73if sys.version_info >= (3, 8):74    import importlib.metadata as importlib_metadata75else:76    import importlib_metadata77 78 79def find_entry_points(entry_points: Any, group: str) -> Iterable[importlib_metadata.EntryPoint]:80    if hasattr(entry_points, "select"):  # Python 3.10+ / importlib_metadata >= 3.9.081        return entry_points.select(group=group)82    else:83        return set(entry_points.get(group, ()))84 85 86def get_dist_name(entry_point: importlib_metadata.EntryPoint) -> Optional[str]:87    dist = getattr(entry_point, "dist", None)88    if dist is not None:  # Python 3.10+89        return dist.name90 91    match = entry_point.pattern.match(entry_point.value)92    if not (match and match.group('module')):93        return None94 95    package = match.group('module').split('.')[0]96    try:97        metadata = importlib_metadata.metadata(package)98    except importlib_metadata.PackageNotFoundError:99        return None100    else:101        return metadata.get('name')102 103 104def ensure_default_certs_loaded(ssl_context: SSLContext) -> None:105    """106    Workaround for a bug in Requests 2.32.3107 108    See <https://github.com/httpie/cli/issues/1583>109 110    """111    if hasattr(ssl_context, 'load_default_certs'):112        if not ssl_context.get_ca_certs():113            ssl_context.load_default_certs()114