Comment 2 for bug 965911

StacktraceTop:
 dict_dealloc (mp=0xf2f330) at ../Objects/dictobject.c:984
 module_dealloc (m=0x7fc26d286868) at ../Objects/moduleobject.c:179
 insertdict (mp=0xeab150, key='operator', hash=-8463762425329832168, value=None) at ../Objects/dictobject.c:530
 PyDict_SetItem (op={'aptsources.logging': None, 'heapq': None, 'xml.sax.urlparse': None, 'functools': None, 'random': None, '_bisect': None, 'subprocess': None, 'sysconfig': None, 'aptsources.shutil': None, 'gc': None, 'logging.os': None, 'apt.re': None, 'encodings.encodings': None, 'encodings.hex_codec': None, 'apt.progress.os': None, 'xml': None, 'struct': None, 'tempfile': None, 'base64': None, 'apt.cache': None, 'aptsources.xml': None, 'imp': None, 'collections': None, 'logging.thread': None, 'apt_pkg': None, 'apt.glob': None, 'aptsources.time': None, 'softwareproperties.urlparse': None, 'zipimport': None, 'string': None, 'aptsources.distro': None, 'encodings.utf_8': None, 'xml.etree.warnings': None, 'xml.etree.sys': None, 'ssl': None, 'apt.urllib2': None, 'softwareproperties.AptAuth': None, 'apt': None, 'json.encoder': None, 'softwareproperties.softwareproperties': None, 'softwareproperties.atexit': None, 'ConfigParser': None, 'httplib': None, 'bisect': None, 'signal': None, 'apt.progress.errno': None, 'threading': None, '...(truncated), key=<optimized out>, value=<optimized out>) at ../Objects/dictobject.c:775
 PyImport_Cleanup () at ../Python/import.c:499