AttributeError: 'NoneType' object has no attribute 'makefile'

[GoogleCodeExporter]

I don't know where the error is, yet.  This is the traceback we see.  Somewhere 
between python-couchdb and httplib, the communication 
socket we're trying to use to talk to couchdb is not valid.

  File "/usr/lib/python2.6/dist-packages/desktopcouch/records/server_base.py", line 397, in view_exists
    view_container = self.db[doc_id]["views"]
  File "/usr/lib/pymodules/python2.6/couchdb/client.py", line 316, in __getitem__
    resp, data = self.resource.get(id)
  File "/usr/lib/pymodules/python2.6/couchdb/client.py", line 978, in get
    return self._request('GET', path, headers=headers, **params)
  File "/usr/lib/pymodules/python2.6/couchdb/client.py", line 1014, in _request
    resp, data = _make_request()
  File "/usr/lib/pymodules/python2.6/couchdb/client.py", line 1009, in _make_request
    body=body, headers=headers)
  File "/usr/lib/pymodules/python2.6/httplib2/__init__.py", line 1129, in request
    (response, content) = self._request(conn, authority, uri, request_uri, method, body, headers, redirections, cachekey)
  File "/usr/lib/pymodules/python2.6/httplib2/__init__.py", line 901, in _request
    (response, content) = self._conn_request(conn, request_uri, method, body, headers)
  File "/usr/lib/pymodules/python2.6/httplib2/__init__.py", line 871, in _conn_request
    response = conn.getresponse()
  File "/usr/lib/python2.6/httplib.py", line 984, in getresponse
    method=self._method)
  File "/usr/lib/python2.6/httplib.py", line 330, in __init__
    self.fp = sock.makefile('rb', 0)
AttributeError: 'NoneType' object has no attribute 'makefile'

Original issue reported on code.google.com by chadmill on 31 Mar 2010 at 4:25

[GoogleCodeExporter]

I've seen this, too, but it's intermittent AFAIK. Do you have a reproducible 
test case?

Original comment by djc.ochtman on 31 Mar 2010 at 4:31

• Changed state: Accepted

[GoogleCodeExporter]

I have no test case, no.  I suspect that it's insufficient handling of EINTR, 
which 
Python std lib isn't very good at.

Original comment by chadmill on 31 Mar 2010 at 4:46

[GoogleCodeExporter]

I do have Python commit privs as well, so if you can come up with a solution 
for that...

Original comment by djc.ochtman on 31 Mar 2010 at 4:51

[GoogleCodeExporter]

I'm using desktop-couch here for gwibber (well, not using, but I'm packaging 
it). I
managed to get it to start once / twice, and now always see this error. 
Anything I
can provide to track it?

Original comment by dominiqu...@gmail.com on 10 Apr 2010 at 8:29

[GoogleCodeExporter]

Hey, dominique, I hope you can still reproduce this!

The exception handler just above the line referenced in the traceback 

'''File "/usr/lib/pymodules/python2.6/httplib2/__init__.py", line 871, in 
_conn_request'''

looks interesting to me.  Can you find out if you're arriving inside that 
exception 
handler, and what exception is raised?  I don't think it's good to be eating  
all 
socket.error exceptions that way.

Note, it's inside a retry loop.  Maybe the line *after* the exception handler 
should 
catch this AttributeError also.

I hope to spend some time on this next week.

Original comment by chadmill on 10 Apr 2010 at 1:43

[GoogleCodeExporter]

The current tip catches and retries on ECONNRESET and EPIPE. Do you think we 
should
retry on EINTR as well?

Original comment by djc.ochtman on 10 Apr 2010 at 4:05

[GoogleCodeExporter]

This is a known issue in httplib:

http://code.google.com/p/httplib2/issues/detail?id=62

Original comment by thisfred@gmail.com on 19 Apr 2010 at 10:46

[GoogleCodeExporter]

We no longer use httplib2, so I don't think that part applies here.

Original comment by djc.ochtman on 22 Dec 2010 at 11:59

[GoogleCodeExporter]

Okay, this is done.

Original comment by djc.ochtman on 21 Sep 2012 at 7:20

• Changed state: WorksForMe