+# Old 2.6 and 2.7 releases require kwargs to be bytes
+try:
+ def _testfunc(x):
+ pass
+ _testfunc(**{'x': 0})
+except TypeError:
+ def compat_kwargs(kwargs):
+ return dict((bytes(k), v) for k, v in kwargs.items())
+else:
+ compat_kwargs = lambda kwargs: kwargs
+
+
+if sys.version_info < (2, 7):
+ def compat_socket_create_connection(address, timeout, source_address=None):
+ host, port = address
+ err = None
+ for res in socket.getaddrinfo(host, port, 0, socket.SOCK_STREAM):
+ af, socktype, proto, canonname, sa = res
+ sock = None
+ try:
+ sock = socket.socket(af, socktype, proto)
+ sock.settimeout(timeout)
+ if source_address:
+ sock.bind(source_address)
+ sock.connect(sa)
+ return sock
+ except socket.error as _:
+ err = _
+ if sock is not None:
+ sock.close()
+ if err is not None:
+ raise err
+ else:
+ raise socket.error("getaddrinfo returns an empty list")
+else:
+ compat_socket_create_connection = socket.create_connection
+
+
+# Fix https://github.com/rg3/youtube-dl/issues/4223
+# See http://bugs.python.org/issue9161 for what is broken
+def workaround_optparse_bug9161():
+ op = optparse.OptionParser()
+ og = optparse.OptionGroup(op, 'foo')
+ try:
+ og.add_option('-t')
+ except TypeError:
+ real_add_option = optparse.OptionGroup.add_option
+
+ def _compat_add_option(self, *args, **kwargs):
+ enc = lambda v: (
+ v.encode('ascii', 'replace') if isinstance(v, compat_str)
+ else v)
+ bargs = [enc(a) for a in args]
+ bkwargs = dict(
+ (k, enc(v)) for k, v in kwargs.items())
+ return real_add_option(self, *bargs, **bkwargs)
+ optparse.OptionGroup.add_option = _compat_add_option
+