Terminal now handles KeyboardInterrupt and EOF from ctrl+c and ctrl+d

to end chat bot sessions.

This also fixes an issue where chatbot would reply after the exit()
command was issued. In addition the exit() command has been marked
for deprication in favor of using KeyboardInterrupt and EOF commands.

chatterbot/__init__.py

@@ -96,17 +96,26 @@ def begin(self, user_input="Type something to begin..."):
 
         print(user_input)
 
-        while "exit()" not in user_input:
-
-            # 'raw_input' is just 'input' in python3
-            if sys.version_info[0] < 3:
-                user_input = str(raw_input())
-            else:
-                user_input = input()
-
-            bot_input = self.get_response(user_input)
-            for line in bot_input:
-                print(line["name"], line["text"])
+        while True:
+            try:
+                # 'raw_input' is just 'input' in python3
+                if sys.version_info[0] < 3:
+                    user_input = str(raw_input())
+                else:
+                    user_input = input()
+
+                # End the session if the exit command is issued
+                if "exit()" == user_input:
+                    import warnings
+                    warnings.warn("'exit()' is deprecated. Use 'ctrl c' or 'ctrl d' to end a session.")
+                    break
+
+                bot_input = self.get_response(user_input)
+                for line in bot_input:
+                    print(line["name"], line["text"])
+
+            except (KeyboardInterrupt, EOFError, SystemExit):
+                break
 
 
 class TalkWithCleverbot(object):

readme.md

@@ -58,6 +58,9 @@ talk.begin()
 
 ## Notes
 
+Sample conversations for training the chatbot can be downloaded
+from https://gist.github.com/gunthercox/6bde8279615b9b638f71
+
 This program is not designed to be an open source version of CleverBot.
 Although this **Chat Bot** returns responces, the code here handels communication
 much differently then [CleverBot](http://www.cleverbot.com) does.

setup.py

@@ -26,7 +26,7 @@
 
 setup(
     name="ChatterBot",
-    version="1.0.0",
+    version="0.0.3",
     description="An open-source chat bot program written in Python.",
     long_description=readme("readme.md") + "\n\n" + history,
     author="Gunther Cox",

tests/test_engram.py

@@ -20,7 +20,7 @@ def test_close_results(self):
         self.assertEqual(len(output), 1)
         self.assertEqual(output[0].text, expected)
 
-    def test_failing_results(self):
+    def test_empty_input(self):
 
         output = engram("", self.chatbot.log_directory)