https://bugzilla.wikimedia.org/show_bug.cgi?id=68659
--- Comment #2 from John Mark Vandenberg jayvdb@gmail.com --- It also fails if no arguments are given at all
$ python pwb.py imagetransfer -family:wikipedia -lang:en 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/imagetransfer.py", line 356, in <module> main() File "scripts/imagetransfer.py", line 353, in main bot.run() File "scripts/imagetransfer.py", line 273, in run {'title': page.title(), 'ns': pywikibot.Site().image_namespace()}) File ".../pywikibot/data/api.py", line 883, in result p = PageGenerator.result(self, pagedata) File ".../pywikibot/data/api.py", line 867, in result update_page(p, pagedata) File ".../pywikibot/data/api.py", line 1023, in update_page "Page %s has neither 'pageid' nor 'missing' attribute" % pagedict['title']) AssertionError: Page has neither 'pageid' nor 'missing' attribute <type 'exceptions.AssertionError'>