Implement remove hashtag method.

Can´t explain signal handling problem yet :s
Couldnt simplify and reproduce yet either

.gitignore

@@ -2,4 +2,5 @@ oauth.keys
 basic.keys
 *.log
 lib_tests/tweepy
-*.pyc
+*.pyc
+test.py

twiderboard/streamer.py

@@ -148,20 +148,25 @@ class Authentification(AuthHandler):
 
 #--------------------------
 class HashtagLogger():
-    def __init__(self, engine_url, hashtag, oauth=True):
+    def __init__(self, engine_url, oauth=True):
         self.engine_url = engine_url
-        self.trendy = [hashtag]
+        self.trendy = []
         self.oauth = oauth  # Boolean defining whether we use oauth or not
 
         self.stream = None
 
+        self.auth = Authentification(oauth=self.oauth)
+
+
     def start(self):
+        if len(self.trendy) > 0:
+            listener = StreamSaverListener(self.trendy, self.engine_url)
 
-        listener = StreamSaverListener(self.trendy, self.engine_url)
-        auth = Authentification(oauth=self.oauth)
-
-        self.stream = Stream(auth.get_auth(), listener)
-        self.stream.filter(track=self.trendy, async=True)
+            self.stream = Stream(self.auth.get_auth(), listener)
+            print self.trendy
+            self.stream.filter(track=self.trendy, async=True)
+        else:
+            print "No hashtag to track!"
 
     def stop(self):
         if self.stream is not None:
@@ -169,6 +174,7 @@ class HashtagLogger():
 
     def add_hashtag(self, hashtag):
         """
+        FIXME: Check if starts with #
         Adds hashtag to the list of trendy hashtag to be listened to.
         Hashtag is not added if already present.
 
@@ -179,4 +185,17 @@ class HashtagLogger():
             self.trendy.append(hashtag)
 
         self.stop()
-        self.start()
+        self.start()
+
+    def remove_hashtag(self, hashtag):
+        """
+        FIXME: Check if starts with #
+        Removes hashtag to the list of trendy hashtag to be listened to.
+        The streaming connexion is reinitialized to take the new filter into
+        account.
+        """
+        if hashtag in self.trendy:
+            self.trendy.remove(hashtag)
+
+        self.stop()
+        self.start()

twiderboard/streaming_trending.py

@@ -25,8 +25,13 @@ def stop_handler(signal, frame):
 # registering the signal
 signal.signal(signal.SIGINT, stop_handler)
 
-h = HashtagLogger(engine_url, "#nowplaying", oauth=True)
+h = HashtagLogger(engine_url, oauth=True)
 h.start()
 print "Press CTRL + C to stop application"
+h.add_hashtag("#nowplaying")
 h.add_hashtag("#blessed")
-h.add_hashtag("#WTF")
+h.add_hashtag("#WTF")
+sleep(2)
+h.add_hashtag("#fuck")
+
+h.remove_hashtag("#WTF")