fix wikihow, add missing requirements (fix #15)

misc/requirements.txt

@@ -2,3 +2,4 @@ python-telegram-bot
 telegram
 requests
 praw
+python-twitter

schneiderbot_twitter.py

@@ -34,7 +34,7 @@ def check_pepito_and_post_auto(bot, update):
     api = get_twitter_instance()
     current_status = api.GetUserTimeline(pepito_id)[0]
     global last_status
-    if last_status == None or last_status.AsDict()['id'] != current_status.AsDict()['id']:
+    if last_status is None or last_status.AsDict()['id'] != current_status.AsDict()['id']:
         for group_id in pepito_groups:
             bot.send_message(chat_id=group_id, text=current_status.AsDict()['text'])
         last_status = current_status

web_requests.py

@@ -26,11 +26,11 @@ def send_coding_love_gif(bot, update):
         bot.send_animation(chat_id=update.message.chat_id, animation=gif_url, caption=caption)
 
     else:
-        update.message.reply_text("Error fetching image: %s  ¯\_(ツ)_/¯" % random_url)
+        update.message.reply_text("Error fetching image: {}  ¯\_(ツ)_/¯".format(random_url))
 
 
 def send_wiki_how_article(bot, update):
     random_howto = requests.get(urls["wikihow"])
     howto_title = re.search('<title>(.*)</title>', random_howto.text).group(1)
-    howto_url = re.search('<link rel="canonical" href="(.*)" />', random_howto.text).group(1)
+    howto_url = re.search('<link rel="canonical" href="(.*)".*/>', random_howto.text).group(1)
     update.message.reply_text(howto_title + "\n" + howto_url)