better error handling for password callback
better error handling for password callback

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