Update webapp.py

webapp.py

@@ -290,7 +290,7 @@ class DemoCase:
                             logging=True,
                             **options
                         ).start()
-                    except:
+                    except Exception:
                         # Start the stream, set best resolution
                         self.stream0 = CamGear(
                             source=self.url_dict[self.cam_loc],
@@ -299,7 +299,8 @@ class DemoCase:
                             logging=True
                         ).start()
                         logging.warning(
-                            "failed to connect {self.url_dict[self.cam_loc]} at 720p resolution, use best resolution"
+                            f"failed to connect {self.url_dict[self.cam_loc]} "
+                            f"at 720p resolution, use best resolution"
                         )
 
                 try:
@@ -410,7 +411,7 @@ class DemoCase:
                             logging=True,
                             **options
                         ).start()
-                    except:
+                    except Exception:
                         # Start the stream, use the best resolution
                         self.stream1 = CamGear(
                             source=self.url_dict[self.cam_loc],
@@ -419,7 +420,8 @@ class DemoCase:
                             logging=True
                         ).start()
                         logging.warning(
-                            "failed to connect {self.url_dict[self.cam_loc]} at 720p resolution, use best resolution"
+                            f"failed to connect {self.url_dict[self.cam_loc]} "
+                            f"at 720p resolution, use best resolution"
                         )
 
                 if (self._is_tracking and self.stream1 is not None):