I get the following, or something very similar, when I run any GAM command from any machine. I've even installed a fresh copy.
Traceback (most recent call last):
File "gam.py", line 6334, in <module>
File "gam.py", line 4568, in doGetDomainInfo
File "gam.py", line 502, in buildGAPIObject
File "gam.py", line 6270, in doRequestOAuth
File "oauth2client\util.pyo", line 132, in positional_wrapper
File "oauth2client\tools.pyo", line 227, in run_flow
File "oauth2client\util.pyo", line 132, in positional_wrapper
File "oauth2client\client.pyo", line 1283, in step2_exchange
File "httplib2\__init__.pyo", line 1570, in request
File "httplib2\__init__.pyo", line 1317, in _request
File "httplib2\__init__.pyo", line 1286, in _conn_request
File "httplib.pyo", line 1033, in getresponse
httplib.ResponseNotReady