zulip/__init__.py: Adds delete_topic method

Adds a method delete_topic which calls the url '/streams/stream_id/delete_topic
' with topic_name passed as data

Closes #534

Author: Pradhvan

zulip/zulip/__init__.py

@@ -800,6 +800,16 @@ def mark_topic_as_read(self, stream_id: int, topic_name: str) -> Dict[str, Any]:
             },
         )
 
+    def delete_topic(self, stream_id: int, topic_name: str) -> Dict[str, Any]:
+        '''
+            See examples/update-flags for example usage.
+        '''
+        return self.call_endpoint(
+            url='/streams/{}/delete_topic'.format(stream_id),
+            method='POST',
+            request={'topic_name': topic_name}
+        )
+
     def get_message_history(self, message_id: int) -> Dict[str, Any]:
         '''
             See examples/message-history for example usage.

zulip/zulip/examples/delete-topic

@@ -0,0 +1,21 @@
+#!/usr/bin/env python3
+
+import argparse
+import zulip
+
+
+usage = """delete-topic <stream_id/stream_name, topic_name>
+
+Example: delete-topic 1 "Denmark1" or "Denmark" "Denmark1"
+"""
+
+parser = zulip.add_default_arguments(argparse.ArgumentParser(usage=usage))
+parser.add_argument('stream_id')
+parser.add_argument('topic_name', type=str)
+options = parser.parse_args()
+
+client = zulip.init_from_options(options)
+if (type(options.stream_id) == str):
+    options.stream_id = client.get_stream_id(options.stream_id)
+
+print(client.delete_topic(options.stream_id.get("stream_id"), options.topic_name))