STINNER Victor <[email protected]> added the comment:
h.close() (HTTPConnection.close) in the finally block of
AbstractHTTPHandler.do_open() calls indirectly r.close() (HTTPResponse.close).
The problem is that the content of the response cannot be read if its close()
method was called.
The changelog of the fix (commit ad6bdfd7dd4b) is: "Issue #12133:
AbstractHTTPHandler.do_open() of urllib.request closes the HTTP connection if
its getresponse() method fails with a socket error. Patch written by Ezio
Melotti."
The HTTP connection is not only closed in case of an error, but it is always
closed.
It's a bug because we cannot read the content of www.imdb.com, whereas it works
without the commit. Test script:
---------------
import urllib.request, gc
print("python.org")
with urllib.request.urlopen("http://www.python.org/";) as page:
content = page.read()
print("content: %s..." % content[:40])
gc.collect()
print("imdb.com")
with urllib.request.urlopen("http://www.imdb.com/";) as page:
content = page.read()
print("content: %s..." % content[:40])
gc.collect()
print("exit")
---------------
----------
nosy: +haypo
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<http://bugs.python.org/issue12576>
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