do proper handling of file paths

event_feed.py

@@ -130,8 +130,8 @@ def create_event_post(post_dir, event):
     for img in event_metadata['images']:
 
         #parse img url to safe local image name
-        img_name = img.split('/')[-1]
-        fn, ext = img_name.split('.')
+        img_name = os.path.basename(img)
+        fn, ext = os.path.splitext(img_name)
         img_name =  slugify(fn) + '.' + ext
         
         local_image = os.path.join(post_dir, img_name)
@@ -142,6 +142,7 @@ def create_event_post(post_dir, event):
             with open(local_image, 'wb') as img_file:
                 shutil.copyfileobj(response.raw, img_file)
                 print('Downloaded image for event "{}"'.format(event.name))
+            # TODO fix bug here
             event_metadata['description'] = event_metadata['description'].replace(img, '![]({})'.format(img_name))
         if img_name in existing_images:
             existing_images.remove(img_name)