fixed failing sketchpad validation test

gradio/inputs.py

@@ -95,7 +95,7 @@ class Sketchpad(AbstractInput):
         Default preprocessing method for the SketchPad is to convert the sketch to black and white and resize 28x28
         """
         im_transparent = preprocessing_utils.decode_base64_to_image(inp)
-        im = Image.new("RGBA", im_transparent.size, "WHITE")  # Create a white rgba background
+        im = Image.new("RGBA", im_transparent.size, "WHITE")  # Create a white background for the alpha channel
         im.paste(im_transparent, (0, 0), im_transparent)
         im = im.convert('L')
         if self.invert_colors:

gradio/interface.py

@@ -249,12 +249,17 @@ class Interface:
         except NameError:
             pass
 
-        current_pkg_version = pkg_resources.require("gradio")[0].version
-        latest_pkg_version = requests.get(url=PKG_VERSION_URL).json()["version"]
-        if StrictVersion(latest_pkg_version) > StrictVersion(current_pkg_version):
-            print(f"IMPORTANT: You are using gradio version {current_pkg_version}, however version {latest_pkg_version} "
-                  f"is available, please upgrade.")
-            print('--------')
+        try:
+            current_pkg_version = pkg_resources.require("gradio")[0].version
+            latest_pkg_version = requests.get(url=PKG_VERSION_URL).json()["version"]
+            if StrictVersion(latest_pkg_version) > StrictVersion(current_pkg_version):
+                print(f"IMPORTANT: You are using gradio version {current_pkg_version}, "
+                      f"however version {latest_pkg_version} "
+                      f"is available, please upgrade.")
+                print('--------')
+        except:  # TODO(abidlabs): don't catch all exceptions
+            pass
+
         if self.verbose:
             print(strings.en["BETA_MESSAGE"])
             if not is_colab: