MisterSynergy created this task.
MisterSynergy added a project: Pywikibot.
Restricted Application added subscribers: pywikibot-bugs-list, Aklapper.

TASK DESCRIPTION
  **Steps to replicate the issue** (include links if applicable):
  
  - Use API via pywikibot in a way that requires continuation (via the continue 
parameter)
  - Example script:
  
  
  
    import pywikibot as pwb
    
    site = pwb.Site('wikidata', 'wikidata')
    cat = pwb.Category(site, 'Wikidata status updates')
    payload = list(cat.articles(namespaces=4, sortby='timestamp', reverse=True))
  
  **What happens?**:
  
  pywikibot.exceptions.APIError is raised
  
    WARNING: API error badcontinue: Invalid continue param. You should pass the 
original value returned by the previous query.
    Traceback (most recent call last):
      File "/home/msyn/pywikibot_scripts/../pywikibot/pwb.py", line 39, in 
<module>
        sys.exit(main())
      File "/home/msyn/pywikibot_scripts/../pywikibot/pwb.py", line 35, in main
        runpy.run_path(str(path), run_name='__main__')
      File "/usr/lib/python3.9/runpy.py", line 268, in run_path
        return _run_module_code(code, init_globals, run_name,
      File "/usr/lib/python3.9/runpy.py", line 97, in _run_module_code
        _run_code(code, mod_globals, init_globals,
      File "/usr/lib/python3.9/runpy.py", line 87, in _run_code
        exec(code, run_globals)
      File 
"/home/msyn/pywikibot_scripts/../pywikibot/pywikibot/scripts/wrapper.py", line 
516, in <module>
        main()
      File 
"/home/msyn/pywikibot_scripts/../pywikibot/pywikibot/scripts/wrapper.py", line 
500, in main
        if not execute():
      File 
"/home/msyn/pywikibot_scripts/../pywikibot/pywikibot/scripts/wrapper.py", line 
487, in execute
        run_python_file(filename, script_args, module)
      File 
"/home/msyn/pywikibot_scripts/../pywikibot/pywikibot/scripts/wrapper.py", line 
147, in run_python_file
        exec(compile(source, filename, 'exec', dont_inherit=True),
      File "test.py", line 15, in <module>
        main()
      File "test.py", line 9, in main
        ps = list(cat.articles(namespaces=4, sortby='timestamp', reverse=True))
      File "/home/msyn/pywikibot/pywikibot/page/_category.py", line 183, in 
members
        for member in self.site.categorymembers(self, total=total, **kwargs):
      File "/usr/lib/python3.9/_collections_abc.py", line 330, in __next__
        return self.send(None)
      File "/home/msyn/pywikibot/pywikibot/tools/collections.py", line 275, in 
send
        return next(self._started_gen)
      File "/home/msyn/pywikibot/pywikibot/data/api/_generators.py", line 610, 
in generator
        self.data = self.request.submit()
      File "/home/msyn/pywikibot/pywikibot/data/api/_requests.py", line 1088, 
in submit
        raise pywikibot.exceptions.APIError(**error)
    pywikibot.exceptions.APIError: badcontinue: Invalid continue param. You 
should pass the original value returned by the previous query.
    [servedby: mw1421;
     help: See https://www.wikidata.org/w/api.php for API usage. Subscribe to 
the mediawiki-api-announce mailing list at 
&lt;https://lists.wikimedia.org/postorius/lists/mediawiki-api-announce.lists.wikimedia.org/&gt;
 for notice of API deprecations and breaking changes.]
    CRITICAL: Exiting due to uncaught exception <class 
'pywikibot.exceptions.APIError'>
  
  **What should have happened instead?**:
  
  - API interaction should not result in an error
  
  **Software version** (skip for WMF-hosted wikis like Wikipedia):
  
  - Using pywikibot revision af8d9fe98 
<https://github.com/wikimedia/pywikibot/commit/af8d9fe98a96cbb52e1cb8a8ce62f92b12a54d68>
 from yesterday evening
  
  **Other information** (browser name/version, screenshots, etc.):
  
  - Check whether this is related to 
https://gerrit.wikimedia.org/r/c/mediawiki/core/+/851144/ from T321265 
<https://phabricator.wikimedia.org/T321265> since the API now requires a valid 
timestamp to be handed over, rather than just a string which may or may not be 
a valid timestamp.

TASK DETAIL
  https://phabricator.wikimedia.org/T323910

EMAIL PREFERENCES
  https://phabricator.wikimedia.org/settings/panel/emailpreferences/

To: MisterSynergy
Cc: Aklapper, pywikibot-bugs-list, MisterSynergy, PotsdamLamb, Jyoo1011, 
JohnsonLee01, SHEKH, Dijkstra, Khutuck, Zkhalido, Viztor, Wenyi, Tbscho, MayS, 
Mdupont, JJMC89, Dvorapa, Altostratus, Avicennasis, mys_721tx, Xqt, jayvdb, 
Masti, Alchimista
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