Add loading of img urls from subreddit name.

Use reddits json api to find image urls and add them to a list. To edit
which subreddit to find pictures from, just edit the name in the
subreddit file.

pensieve.py

@@ -0,0 +1,27 @@
+#!/usr/bin/python
+from os import system
+import json
+import urllib2
+import time
+
+def load_json(subreddit):
+    req = urllib2.urlopen('http://www.reddit.com/r/' + subreddit + '.json')
+    json_string = json.load(req)
+    return json_string[u'data'][u'children']
+
+def add_urls_to_list(subreddit):
+    obj = load_json(subreddit)
+    img_urls = []
+    for a in obj:
+        if a[u'data'][u'domain'] == u'i.imgur.com':
+            img_urls.append( a[u'data'][u'url'])
+    return img_urls
+
+def load_subreddit():
+    f = open('subreddit', 'r')
+    subreddit = f.readline().strip()
+    f.close()
+    return subreddit
+
+
+urls = add_urls_to_list(load_subreddit())

subreddit

@@ -0,0 +1 @@
+emmawatson