Traceback (most recent call last):

 "./youtube-dl", line 12, in <module>
import ctypes

 "/usr/local/lib/python2.6/ctypes/**init**.py", line 10, in <module>
from _ctypes import Union, Structure, ArrayImportError: No module named _ctypes

Traceback (most recent call last):

 "/Users/davidlaxer/anaconda/lib/python2.7/site-packages/tornado/http1connection.py", line 693, in _server_request_loop
ret = yield conn.read_response(request_delegate)

 "/Users/davidlaxer/anaconda/lib/python2.7/site-packages/tornado/gen.py", line 870, in run
value = future.result()

 "/Users/davidlaxer/anaconda/lib/python2.7/site-packages/tornado/concurrent.py", line 215, in result
raise_exc_info(self._exc_info)

 "/Users/davidlaxer/anaconda/lib/python2.7/site-packages/tornado/gen.py", line 876, in run
yielded = self.gen.throw(*exc_info)

 "/Users/davidlaxer/anaconda/lib/python2.7/site-packages/tornado/http1connection.py", line 168, in _read_message
quiet_exceptions=iostream.StreamClosedError)

 "/Users/davidlaxer/anaconda/lib/python2.7/site-packages/tornado/gen.py", line 870, in run
value = future.result()

 "/Users/davidlaxer/anaconda/lib/python2.7/site-packages/tornado/concurrent.py", line 215, in result
raise_exc_info(self._exc_info)

 "<string>", line 3, in raise_exc_info
SSLError: [SSL: TLSV1_ALERT_UNKNOWN_CA] tlsv1 alert unknown ca (_ssl.c:1752)