nocommons fails:
```
C:\pwb\GIT\core>pwb.py nowcommons -simulate
Retrieving 30 pages from wikipedia:de.
>>> Datei:Fraukirch Umgebung.jpg <<<
No page is using "Fraukirch Umgebung.jpg" anymore.
Traceback (most recent call last):
File "C:\pwb\GIT\core\pwb.py", line 256, in <module>
if not main():
File "C:\pwb\GIT\core\pwb.py", line 250, in main
run_python_file(filename, [filename] + args, argvu, file_package)
File "C:\pwb\GIT\core\pwb.py", line 121, in run_python_file
main_mod.__dict__)
File ".\scripts\nowcommons.py", line 485, in <module>
main()
File ".\scripts\nowcommons.py", line 482, in main
bot.run()
File ".\scripts\nowcommons.py", line 452, in run
pywikibot.output(u'%s' % e[0])
IndexError: tuple index out of range
<type 'exceptions.IndexError'>
CRITICAL: Closing network session.
```
but the error is quite misleading. I repaired that line 452 (removing that index) and added an additional exception() call above. Then I get:
```
C:\pwb\GIT\core>pwb.py nowcommons -simulate
Retrieving 32 pages from wikipedia:de.
>>> Datei:Fraukirch Umgebung.jpg <<<
No page is using "Fraukirch Umgebung.jpg" anymore.
ERROR: NoPage: Page [[commons:File:Wdwdbot]] doesn't exist.
Page [[commons:File:Wdwdbot]] doesn't exist.
```
which looks ugly. The corresponding template looks like `{{NowCommons|transferby=wdwdbot}}`. I guess that `transferby` is misinterpreted by the bot.