# httpleak.py
"""
Demonstrate circular references in http
http://bugs.python.org/issue7464
"""
from __future__ import print_function
try:
    from urllib2 import urlopen
    print("python 2")
except ImportError:
    from urllib.request import urlopen
    print("python 3")

import gc
gc.disable()
import weakref
import traceback

response = urlopen("http://www.google.com")
try:
    w = weakref.ref(response.fp._sock)
except AttributeError:
    w = weakref.ref(response.fp.raw._sock)  # python 3
if not w():
    raise RuntimeError
print("socket is", repr(w()))
if "HTTPResponse" in repr(w()):
    print("response socket fileobject is ", w().fp)

print("got", repr(response.read()[:10]))
response.close()
del response
if w():
    print("socket still lives after close")
    if "HTTPResponse" in repr(w()):
        print("response socket fileobject is ", w().fp)
    gc.collect()
    if w():
        print("Unexpected: socket still lives after gc")
    else:
        print("socket finally died after gc")
else:
    print("socket died by itself")