Description:

after I already wrote an e-mail to the developer, I found out that the bug actually occurs because we sed the source to correct the binary's name, which breaks here with this message:

Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/pychess/widgets/gamenanny.py", line 113, in cb
createRematch(gamemodel)
File "/usr/lib/python2.7/site-packages/pychess/widgets/newGameDialog.py", line 566, in createRematch
xmlengine = discoverer.getEngines()[binname]
KeyError: 'python2'

Additional info:
pychess-0.10.1-1

Steps to reproduce:
play a chess game in pychess or "Offer Draw" (in "Actions" menu) and try clicking one of the buttons in the yellow panel that appears if you either "offer draw" or finish a game.

Also, I have appended a patch which solves the problem elegantly. The code is written for unix only (not using os.path.* but literal string + "/" + concatenations) and has other similar flaws, which just happen to work here.

Will report back if I find other bugs like this.