[utils] Improve remote address skipping and add support for python 2.6 (closes #17362)
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		@@ -49,7 +49,6 @@ from .compat import (
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    compat_os_name,
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    compat_parse_qs,
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    compat_shlex_quote,
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    compat_socket_create_connection,
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    compat_str,
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    compat_struct_pack,
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    compat_struct_unpack,
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@@ -884,7 +883,6 @@ def _create_http_connection(ydl_handler, http_class, is_https, *args, **kwargs):
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    source_address = ydl_handler._params.get('source_address')
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    if source_address is not None:
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        filter_for = socket.AF_INET if '.' in source_address else socket.AF_INET6
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        # This is to workaround _create_connection() from socket where it will try all
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        # address data from getaddrinfo() including IPv6. This filters the result from
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        # getaddrinfo() based on the source_address value.
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@@ -894,7 +892,13 @@ def _create_http_connection(ydl_handler, http_class, is_https, *args, **kwargs):
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            host, port = address
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            err = None
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            addrs = socket.getaddrinfo(host, port, 0, socket.SOCK_STREAM)
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            ip_addrs = [addr for addr in addrs if addr[0] == filter_for]
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            af = socket.AF_INET if '.' in source_address[0] else socket.AF_INET6
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            ip_addrs = [addr for addr in addrs if addr[0] == af]
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            if addrs and not ip_addrs:
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                ip_version = 'v4' if af == socket.AF_INET else 'v6'
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                raise socket.error(
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                    "No remote IP%s addresses available for connect, can't use '%s' as source address"
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                    % (ip_version, source_address[0]))
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            for res in ip_addrs:
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                af, socktype, proto, canonname, sa = res
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                sock = None
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@@ -913,15 +917,15 @@ def _create_http_connection(ydl_handler, http_class, is_https, *args, **kwargs):
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            if err is not None:
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                raise err
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            else:
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                raise socket.error('Unknown error occurred')
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        hc._create_connection = _create_connection
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                raise socket.error('getaddrinfo returns an empty list')
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        if hasattr(hc, '_create_connection'):
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            hc._create_connection = _create_connection
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        sa = (source_address, 0)
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        if hasattr(hc, 'source_address'):  # Python 2.7+
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            hc.source_address = sa
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        else:  # Python 2.6
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            def _hc_connect(self, *args, **kwargs):
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                sock = compat_socket_create_connection(
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                sock = _create_connection(
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                    (self.host, self.port), self.timeout, sa)
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                if is_https:
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                    self.sock = ssl.wrap_socket(
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