[bugfix] Ignore InvalidTitleError in commonscat.py

Bug: T267742
Change-Id: I9b5fbfb50536e6f426d8d3ae0aa38f7cbd475e06
---
M scripts/commonscat.py
1 file changed, 8 insertions(+), 0 deletions(-)

diff --git a/scripts/commonscat.py b/scripts/commonscat.py
index cd13432..0eea8a2 100755
--- a/scripts/commonscat.py
+++ b/scripts/commonscat.py
@@ -41,8 +41,11 @@
 import re
 
 import pywikibot
+
 from pywikibot import i18n, pagegenerators
 from pywikibot.bot import ExistingPageBot, NoRedirectPageBot, SingleSiteBot
+from pywikibot.exceptions import InvalidTitleError
+
 from scripts.add_text import add_text
 
 
@@ -454,6 +457,11 @@
         commonsSite = self.site.image_repository()
         commonsPage = pywikibot.Page(commonsSite, 'Category:' + name)
 
+        try:  # parse title (T26742)
+            str(commonsPage)
+        except InvalidTitleError:
+            return ''
+
         if not commonsPage.exists():
             pywikibot.output('Commons category does not exist. '
                              'Examining deletion log...')

