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__init__.py
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# pylint:disable=C0111 import os from typing import IO, AnyStr, Union, cast from .const import ( MODE_AUTO, MODE_FD, MODE_FILE, MODE_MEMORY, MODE_MMAP, MODE_MMAP_EXT, ) from .decoder import InvalidDatabaseError from .reader import Reader try: # pylint: disable=import-self from . import extension as _extension except ImportError: _extension = None # type: ignore[assignment] __all__ = [ "InvalidDatabaseError", "MODE_AUTO", "MODE_FD", "MODE_FILE", "MODE_MEMORY", "MODE_MMAP", "MODE_MMAP_EXT", "Reader", "open_database", ] def open_database( database: Union[AnyStr, int, os.PathLike, IO], mode: int = MODE_AUTO, ) -> Reader: """Open a MaxMind DB database Arguments: database -- A path to a valid MaxMind DB file such as a GeoIP2 database file, or a file descriptor in the case of MODE_FD. mode -- mode to open the database with. Valid mode are: * MODE_MMAP_EXT - use the C extension with memory map. * MODE_MMAP - read from memory map. Pure Python. * MODE_FILE - read database as standard file. Pure Python. * MODE_MEMORY - load database into memory. Pure Python. * MODE_FD - the param passed via database is a file descriptor, not a path. This mode implies MODE_MEMORY. * MODE_AUTO - tries MODE_MMAP_EXT, MODE_MMAP, MODE_FILE in that order. Default mode. """ if mode not in ( MODE_AUTO, MODE_FD, MODE_FILE, MODE_MEMORY, MODE_MMAP, MODE_MMAP_EXT, ): raise ValueError(f"Unsupported open mode: {mode}") has_extension = _extension and hasattr(_extension, "Reader") use_extension = has_extension if mode == MODE_AUTO else mode == MODE_MMAP_EXT if not use_extension: return Reader(database, mode) if not has_extension: raise ValueError( "MODE_MMAP_EXT requires the maxminddb.extension module to be available" ) # The C type exposes the same API as the Python Reader, so for type # checking purposes, pretend it is one. (Ideally this would be a subclass # of, or share a common parent class with, the Python Reader # implementation.) return cast(Reader, _extension.Reader(database, mode)) __title__ = "maxminddb" __version__ = "2.4.0" __author__ = "Gregory Oschwald" __license__ = "Apache License, Version 2.0" __copyright__ = "Copyright 2013-2023 MaxMind, Inc."