mediawiki: getting the pages in a given category
api, mediawiki, xml
Solution
Looks like a bug in the code running on English Wikipedia - your syntax works fine for me on slightly older versions of MediaWiki.
Problem
using the mediawiki API, I can list the pages in a given category. For example: http://en.wikipedia.org/w/api.php?action=query&list=categorymembers&cmtitle=Category:Physics returns: ``` <?xml version="1.0"?> <api> <query> <categorymembers> <cm pageid="22939" ns="0" title="Physics" /> <cm pageid="24489" ns="0" title="Outline of physics" /> <cm pageid="1653925" ns="100" title="Portal:Physics" /> <cm pageid="3445246" ns="0" title="Glossary of classical physics" /> <cm pageid="22950086" ns="0" title="Britney Spears' Guide to Semiconductor Physics" /> <cm pageid="2129107" ns="14" title="Category:Fundamental physics concepts" /> <cm pageid="4769321" ns="0" title="Timeline of fundamental physics discoveries" /> <cm pageid="694942" ns="14" title="Category:Physicists" /> <cm pageid="1198" ns="0" title="Acoustics" /> <cm pageid="1913676" ns="14" title="Category:Applied and interdisciplinary physics" /> </categorymembers> </query> <query-continue> <categorymembers cmcontinue="Atomic, molecular, and optical physics|" /> </query-continue> </api> ``` I now want to limit my query to only one MW namespace. I have tried to use the cmnamespace parameter. But http://en.wikipedia.org/w/api.php?action=query&list=categorymembers&cmtitle=Category:Physics&cmnamespace=0 returns the same result. How should I use this namespace parameter ?