bazarr/libs/waitress/compat.py

30 lines
867 B
Python

import platform
# Fix for issue reported in https://github.com/Pylons/waitress/issues/138,
# Python on Windows may not define IPPROTO_IPV6 in socket.
import socket
import sys
import warnings
# True if we are running on Windows
WIN = platform.system() == "Windows"
MAXINT = sys.maxsize
HAS_IPV6 = socket.has_ipv6
if hasattr(socket, "IPPROTO_IPV6") and hasattr(socket, "IPV6_V6ONLY"):
IPPROTO_IPV6 = socket.IPPROTO_IPV6
IPV6_V6ONLY = socket.IPV6_V6ONLY
else: # pragma: no cover
if WIN:
IPPROTO_IPV6 = 41
IPV6_V6ONLY = 27
else:
warnings.warn(
"OS does not support required IPv6 socket flags. This is requirement "
"for Waitress. Please open an issue at https://github.com/Pylons/waitress. "
"IPv6 support has been disabled.",
RuntimeWarning,
)
HAS_IPV6 = False