changed to 'is not'/'is' vs '!='/'='

Author: Zerryth

libraries/botbuilder-dialogs/botbuilder/dialogs/choices/choice_recognizers.py

@@ -45,7 +45,7 @@ def recognize_choices(
         --------
         A list of found choices, sorted by most relevant first.
         """
-        if utterance == None:
+        if utterance is None:
             utterance = ''
 
         # Normalize list of choices

libraries/botbuilder-dialogs/botbuilder/dialogs/prompts/prompt.py

@@ -44,10 +44,10 @@ async def begin_dialog(self, dc: DialogContext, options: object) -> DialogTurnRe
         if not isinstance(options, PromptOptions):
             raise TypeError('Prompt(): Prompt options are required for Prompt dialogs.')
         # Ensure prompts have input hint set
-        if options.prompt != None and not options.prompt.input_hint:
+        if options.prompt is not None and not options.prompt.input_hint:
             options.prompt.input_hint = InputHints.expecting_input
 
-        if options.retry_prompt != None and not options.retry_prompt.input_hint:
+        if options.retry_prompt is not None and not options.retry_prompt.input_hint:
             options.retry_prompt.input_hint = InputHints.expecting_input
 
         # Initialize prompt state