Correct singleton comparisons

modules/extras.py

@@ -188,7 +188,7 @@ def run_extras(extras_mode, resize_mode, image, image_folder, input_dir, output_
         for op in extras_ops:
             image, info = op(image, info)
 
-        if opts.use_original_name_batch and image_name != None:
+        if opts.use_original_name_batch and image_name is not None:
             basename = os.path.splitext(os.path.basename(image_name))[0]
         else:
             basename = ''

modules/ngrok.py

@@ -2,7 +2,7 @@ from pyngrok import ngrok, conf, exception
 
 def connect(token, port, region):
     account = None
-    if token == None:
+    if token is None:
         token = 'None'
     else:
         if ':' in token:
@@ -14,7 +14,7 @@ def connect(token, port, region):
         auth_token=token, region=region
     )
     try:
-        if account == None:
+        if account is None:
             public_url = ngrok.connect(port, pyngrok_config=config, bind_tls=True).public_url
         else:
             public_url = ngrok.connect(port, pyngrok_config=config, bind_tls=True, auth=account).public_url

modules/ui.py

@@ -49,10 +49,14 @@ if not cmd_opts.share and not cmd_opts.listen:
     gradio.utils.version_check = lambda: None
     gradio.utils.get_local_ip_address = lambda: '127.0.0.1'
 
-if cmd_opts.ngrok != None:
+if cmd_opts.ngrok is not None:
     import modules.ngrok as ngrok
     print('ngrok authtoken detected, trying to connect...')
-    ngrok.connect(cmd_opts.ngrok, cmd_opts.port if cmd_opts.port != None else 7860, cmd_opts.ngrok_region)
+    ngrok.connect(
+        cmd_opts.ngrok,
+        cmd_opts.port if cmd_opts.port is not None else 7860,
+        cmd_opts.ngrok_region
+        )
 
 
 def gr_show(visible=True):