Getting python error while running ansible command

I am getting below error while running ansible

$ansible -vvv windows -m win_ping
<ec2-54-145-217-177.compute-1.amazonaws.com> ESTABLISH WINRM CONNECTION FOR USER: Administrator on PORT 5986 TO ec2-54-145-217-177.compute-1.amazonaws.com
ec2-54-145-217-177.compute-1.amazonaws.com | FAILED => Traceback (most recent call last):
  File "/home/ansible/ansible/lib/python2.7/site-packages/ansible/runner/__init__.py", line 586, in _executor
    exec_rc = self._executor_internal(host, new_stdin)
  File "/home/ansible/ansible/lib/python2.7/site-packages/ansible/runner/__init__.py", line 789, in _executor_internal
    return self._executor_internal_inner(host, self.module_name, self.module_args, inject, port, complex_args=complex_args)
  File "/home/ansible/ansible/lib/python2.7/site-packages/ansible/runner/__init__.py", line 968, in _executor_internal_inner
    conn = self.connector.connect(actual_host, actual_port, actual_user, actual_pass, actual_transport, actual_private_key_file, delegate_host)
  File "/home/ansible/ansible/lib/python2.7/site-packages/ansible/runner/connection.py", line 52, in connect
    self.active = conn.connect()
  File "/home/ansible/ansible/lib/python2.7/site-packages/ansible/runner/connection_plugins/winrm.py", line 140, in connect
    self.protocol = self._winrm_connect()
  File "/home/ansible/ansible/lib/python2.7/site-packages/ansible/runner/connection_plugins/winrm.py", line 96, in _winrm_connect
    protocol.send_message('')
  File "/home/ansible/ansible/lib/python2.7/site-packages/winrm/protocol.py", line 193, in send_message
    return self.transport.send_message(message)
  File "/home/ansible/ansible/lib/python2.7/site-packages/winrm/transport.py", line 108, in send_message
    response = self.opener.open(request, timeout=self.timeout)
  File "/usr/local/lib/python2.7/urllib2.py", line 391, in open
    response = self._open(req, data)
  File "/usr/local/lib/python2.7/urllib2.py", line 409, in _open
    '_open', req)
  File "/usr/local/lib/python2.7/urllib2.py", line 369, in _call_chain
    result = func(*args)
  File "/usr/local/lib/python2.7/urllib2.py", line 1181, in https_open
    return self.do_open(httplib.HTTPSConnection, req)
  File "/usr/local/lib/python2.7/urllib2.py", line 1142, in do_open
    h.request(req.get_method(), req.get_selector(), req.data, headers)
  File "/usr/local/lib/python2.7/httplib.py", line 946, in request
    self._send_request(method, url, body, headers)
  File "/usr/local/lib/python2.7/httplib.py", line 986, in _send_request
    self.putheader(hdr, value)
  File "/usr/local/lib/python2.7/httplib.py", line 924, in putheader
    str = '%s: %s' % (header, '\r\n\t'.join(values))
TypeError: sequence item 0: expected string, int found

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I am running python 2.7 in virtual environment, appreciate any help