Error attaching file to ticket

[anonymous]

This fails the same way if adding to a new ticket or an existing ticket. I tried several different times with different file names, but always the same error.

Python Traceback

Traceback (most recent call last):
  File "/var/lib/python-support/python2.5/trac/web/main.py", line 387, in dispatch_request
    dispatcher.dispatch(req)
  File "/var/lib/python-support/python2.5/trac/web/main.py", line 237, in dispatch
    resp = chosen_handler.process_request(req)
  File "/var/lib/python-support/python2.5/trac/attachment.py", line 361, in process_request
    self._do_save(req, attachment)
  File "/var/lib/python-support/python2.5/trac/attachment.py", line 450, in _do_save
    size = upload.file.len
AttributeError: 'cStringIO.StringO' object has no attribute 'len'

[Emmanuel Blot]

Likely to be a duplicate of #4311.

Please always specify your environment (Trac version, …) when you report an issue.