Running the following code against enwiki:
import pywikibot site = pywikibot.Site() cat = pywikibot.Category(site, 'Category:Redirects from scientific names') pagelist = cat.articles(startprefix='Ber', endprefix='Bf', total=100) for p in pagelist: print(p)
A warning is output and the endprefix parameter has no effect:
WARNING: API warning (main): Unrecognized parameter: cmendsortkeyprefix.
The endprefix parameter should be used to set the value of gcmendsortkeyprefix, rather than cmendsortkeyprefix.