Better deal with closed curl objects.
Better deal with closed curl objects.

ninemoreminutes/pycurl,ninemoreminutes/pycurl,m13253/pycurl-python3,m13253/pycurl-python3,jcharum/pycurl,jcharum/pycurl,ninemoreminutes/pycurl,ninemoreminutes/pycurl,jcharum/pycurl,m13253/pycurl-python3