Code import

venv/lib/python2.7/site-packages/eventlet/green/socket.py

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+import os
+import sys
+
+__import__('eventlet.green._socket_nodns')
+__socket = sys.modules['eventlet.green._socket_nodns']
+
+__all__ = __socket.__all__
+__patched__ = __socket.__patched__ + [
+    'create_connection',
+    'getaddrinfo',
+    'gethostbyname',
+    'gethostbyname_ex',
+    'getnameinfo',
+]
+
+from eventlet.patcher import slurp_properties
+slurp_properties(__socket, globals(), srckeys=dir(__socket))
+
+
+if os.environ.get("EVENTLET_NO_GREENDNS", '').lower() != 'yes':
+    from eventlet.support import greendns
+    gethostbyname = greendns.gethostbyname
+    getaddrinfo = greendns.getaddrinfo
+    gethostbyname_ex = greendns.gethostbyname_ex
+    getnameinfo = greendns.getnameinfo
+    del greendns
+
+
+def create_connection(address,
+                      timeout=_GLOBAL_DEFAULT_TIMEOUT,
+                      source_address=None):
+    """Connect to *address* and return the socket object.
+
+    Convenience function.  Connect to *address* (a 2-tuple ``(host,
+    port)``) and return the socket object.  Passing the optional
+    *timeout* parameter will set the timeout on the socket instance
+    before attempting to connect.  If no *timeout* is supplied, the
+    global default timeout setting returned by :func:`getdefaulttimeout`
+    is used.
+    """
+
+    err = "getaddrinfo returns an empty list"
+    host, port = address
+    for res in getaddrinfo(host, port, 0, SOCK_STREAM):
+        af, socktype, proto, canonname, sa = res
+        sock = None
+        try:
+            sock = socket(af, socktype, proto)
+            if timeout is not _GLOBAL_DEFAULT_TIMEOUT:
+                sock.settimeout(timeout)
+            if source_address:
+                sock.bind(source_address)
+            sock.connect(sa)
+            return sock
+
+        except error as e:
+            err = e
+            if sock is not None:
+                sock.close()
+
+    if not isinstance(err, error):
+        err = error(err)
+    raise err