get image urls from wikipedia image names

oxweb/wikipedia.py

@@ -51,6 +51,17 @@ def getMovieData(wikipediaUrl):
             filmbox[key] = value
     return filmbox
 
+def getImageUrl(name):
+    data = getUrlUnicode('http://en.wikipedia.org/wiki/Image:' + name)
+    url = findRe(data, '="(http://upload.wikimedia.org/.*?)"')
+    return url
+
+def getMoviePoster(wikipediaUrl):
+    data = getMovieData(wikipediaUrl)
+    if 'image' in data:
+        return getImageUrl(data['image'])
+    return ''
+
 def getAmgId(wikipediaUrl):
     data = getMovieData(wikipediaUrl)
     return data.get('amg_id', '')