Added support for deleting dm's with the new Twitter API methods

doc/changelog.md

@@ -2,6 +2,7 @@
 
 ## changes in this version
 
+* Added support for deleting direct messages by using the new Twitter API methods.
 * When quoting a retweet, the quote will be made to the original tweet instead of the retweet.
 * If the sent direct messages buffer is hidden, TWBlue should keep loading everything as expected. ([#246](https://github.com/manuelcortez/TWBlue/issues/246))
 * There is a new soundpack, called FreakyBlue (Thanks to [Andre Louis](https://twitter.com/FreakyFwoof)) as a new option in TWBlue. This pack can be the default in the next stable, so users can take a look and share their opinion in snapshot versions. ([#247](https://github.com/manuelcortez/TWBlue/issues/247))

src/controller/buffers/twitterBuffers.py

@@ -557,7 +557,6 @@ class baseBufferController(baseBuffers.buffer):
      self.session.twitter.destroy_status(id=self.get_right_tweet()["id"])
      self.session.db[self.name].pop(index)
     self.buffer.list.remove_item(index)
-#    if index > 0:
    except TwythonError:
     self.session.sound.play("error.ogg")
 

src/twython/api.py

@@ -153,7 +153,7 @@ class Twython(EndpointsMixin, object):
             if k in ('timeout', 'allow_redirects', 'stream', 'verify'):
                 requests_args[k] = v
 
-        if method == 'get':
+        if method == 'get' or method == 'delete':
             requests_args['params'] = params
         else:
             # Check for json_encoded so we will sent params as "data" or "json"
@@ -242,7 +242,7 @@ class Twython(EndpointsMixin, object):
                          (e.g. search/tweets)
         :type endpoint: string
         :param method: (optional) Method of accessing data, either
-                       GET or POST. (default GET)
+                       GET, POST or DELETE. (default GET)
         :type method: string
         :param params: (optional) Dict of parameters (if any) accepted
                        the by Twitter API endpoint you are trying to
@@ -281,6 +281,10 @@ class Twython(EndpointsMixin, object):
         """Shortcut for POST requests via :class:`request`"""
         return self.request(endpoint, 'POST', params=params, version=version, json_encoded=json_encoded)
 
+    def delete(self, endpoint, params=None, version='1.1', json_encoded=False):
+        """Shortcut for delete requests via :class:`request`"""
+        return self.request(endpoint, 'DELETE', params=params, version=version, json_encoded=json_encoded)
+
     def get_lastfunction_header(self, header, default_return_value=None):
         """Returns a specific header from the last API call
         This will return None if the header is not present

src/twython/endpoints.py

@@ -329,10 +329,10 @@ class EndpointsMixin(object):
         """Destroys the direct message specified in the required ``id`` parameter
 
         Docs:
-        https://developer.twitter.com/en/docs/direct-messages/sending-and-receiving/api-reference/delete-message
+        https://developer.twitter.com/en/docs/direct-messages/sending-and-receiving/api-reference/delete-message-event
 
         """
-        return self.post('direct_messages/destroy', params=params)
+        return self.delete('direct_messages/events/destroy', params=params)
 
     def send_direct_message(self, **params):
         """Sends a new direct message to the specified user from the