Ubuntu
libfann package

set_train_data ValueError: Size mismatch. All items must be of the same size

Bug #712290 reported by Robert Layton on 2011-02-03

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	libfann (Ubuntu)	Fix Released	Undecided	Unassigned
	Natty	Fix Released	Undecided	Luke Yelavich

Bug Description

SRU justification:

The typo referred to in the below bug report causes the python fann API to be unusable for any python applications that wish to use the fann python bindings/library, causing the below error. Backporting the patch to the natty package will allow the python fann bindings to be usable.

This is already fixed in the latest Debian package, and will be synced into oneiric
once it opens.

Regression potential:

Regression potential should be minimal to non-existant.

Original report follows:

When using the function libfann.training_data().set_train_data, the following error appears:
  File "fann.py", line 29, in __init__
    train.set_train_data(dataset, labels)
  File "/usr/lib/pymodules/python2.6/pyfann/libfann.py", line 301, in set_train_data
    def set_train_data(self, *args): return _libfann.training_data_set_train_data(self, *args)
ValueError: Size mismatch. All items must be of the same size

The error has a fix: http://leenissen.dk/fann/forum/viewtopic.php?f=1&t=626
Its simply a typo in the wrapper (one character!).
Can this be fixed and the new version pushed out?

See original description

Tags:

Related branches

lp:debian/libfann

lp:ubuntu/oneiric/libfann

lp:ubuntu/natty-proposed/libfann

Revision history for this message

Christian Kastner (ckk) wrote on 2011-02-06:

I've committed a fix in the Debian package, I hope to upload soon and will then ask for an Ubuntu sync.

Revision history for this message

Robert Layton (robertlayton) wrote on 2011-02-06:

ann_train.py Edit (726 bytes, text/x-python)

Thanks Christian, particularly for the quick reply.

For anyone who stumbles across this page, I have a workaround which saves the dataset to a file and then runs the train_on_file method to train the network.?field.comment=Thanks Christian, particularly for the quick reply.

For anyone who stumbles across this page, I have a temporary workaround which saves the dataset to a file and then runs the train_on_file method to train the network. As expected, its slow, but it does the job.

Luke Yelavich (themuso) on 2011-04-29

description:

updated

Luke Yelavich (themuso) on 2011-04-29

Changed in libfann (Ubuntu Natty):
assignee:	nobody → Luke Yelavich (themuso)
status:	New → In Progress
description:	updated

Revision history for this message

Launchpad Janitor (janitor) wrote on 2011-04-30:

This bug was fixed in the package libfann - 2.1.0~beta~dfsg-3

---------------
libfann (2.1.0~beta~dfsg-3) unstable; urgency=low

  * debian/control:
    - Bumped Standards-Version to 3.9.2 (changes required)
    - Updated Homepage (new location)
  * debian/rules:
    - In libtool *.la files, set dependency_libs to null string as required by
      Policy section 10.2. Closes: #621572
  * debian/copyright:
    - Updated DEP5 format to r173
    - Updated DEP5 keyword for BSD-3-clause license
   * debian/watch:
    - uversionmangle release qualifier (here: beta) instead of dversionmangle
  * debian/patches added:
    - 0005-Correct-a-typo-in-a-size-comparison
      Fixes a typo in the python wrapper. LP: #712290
-- Ubuntu Archive Auto-Sync <email address hidden> Sat, 30 Apr 2011 13:04:03 +0000

Changed in libfann (Ubuntu):
status:	New → Fix Released

Revision history for this message

Martin Pitt (pitti) wrote on 2011-05-03: Please test proposed package

Accepted libfann into natty-proposed, the package will build now and be available in a few hours. Please test and give feedback here. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you in advance!