Function load_tzdata

Lib/zoneinfo/_common.py:4–29

(key)

def load_tzdata(key):
    from importlib import resources

    components = key.split("/")
    package_name = ".".join(["tzdata.zoneinfo"] + components[:-1])
    resource_name = components[-1]

    try:
        path = resources.files(package_name).joinpath(resource_name)
        # gh-85702: Prevent PermissionError on Windows
        if path.is_dir():
            raise IsADirectoryError
        return path.open("rb")
    except (ImportError, FileNotFoundError, UnicodeEncodeError, IsADirectoryError):
        # There are four types of exception that can be raised that all amount
        # to "we cannot find this key":
        #
        # ImportError: If package_name doesn't exist (e.g. if tzdata is not
        #   installed, or if there's an error in the folder name like
        #   Amrica/New_York)
        # FileNotFoundError: If resource_name doesn't exist in the package
        #   (e.g. Europe/Krasnoy)
        # UnicodeEncodeError: If package_name or resource_name are not UTF-8,
        #   such as keys containing a surrogate character.
        # IsADirectoryError: If package_name without a resource_name specified.
        raise ZoneInfoNotFoundError(f"No time zone found with key {key}")


def load_data(fobj):