Wikimedia Bugzilla is closed!

If makecat is run without an argument to specify a page name, it will prompt the user for a page name.  If the user presses <enter> without entering a value, an exception is raised.

$ python pwb.py scripts/makecat.py -family:wikipedia -lang:en
Which page to start with? 
WARNING: unicode.setAction is DEPRECATED, use comment parameter for page saving method instead.
Traceback (most recent call last):
  File "pwb.py", line 157, in <module>
    run_python_file(fn, argv, argvu)
  File "pwb.py", line 67, in run_python_file
    exec(compile(source, filename, "exec"), main_mod.__dict__)
  File "scripts/makecat.py", line 228, in <module>
    workingcatname))
  File ".../pywikibot/__init__.py", line 432, in wrapper
    return method(*__args, **__kw)
  File ".../pywikibot/page.py", line 1903, in __init__
    if self.namespace() != 14:
  File ".../pywikibot/page.py", line 138, in namespace
    return self._link.namespace
  File ".../pywikibot/page.py", line 3760, in namespace
    self.parse()
  File ".../pywikibot/page.py", line 3737, in parse
    % self._text)
pywikibot.exceptions.Error: Invalid link (no page title): 'Category:'
<class 'pywikibot.exceptions.Error'>
CRITICAL: Waiting for 1 network thread(s) to finish. Press ctrl-c to abort