[py] Better error for downloads on local webdrivers (#15756)

Raise NotImplementedError when trying to call get_downloadable_files() or download_file() on any local WebDriver. These methods are only available on the parent WebDriver class (AKA Remote).

Author: cgoldberg

py/selenium/webdriver/chromium/webdriver.py

@@ -222,3 +222,9 @@ def quit(self) -> None:
             pass
         finally:
             self.service.stop()
+
+    def download_file(self, *args, **kwargs):
+        raise NotImplementedError
+
+    def get_downloadable_files(self, *args, **kwargs):
+        raise NotImplementedError

py/selenium/webdriver/firefox/webdriver.py

@@ -221,3 +221,9 @@ def get_full_page_screenshot_as_base64(self) -> str:
                 driver.get_full_page_screenshot_as_base64()
         """
         return self.execute("FULL_PAGE_SCREENSHOT")["value"]
+
+    def download_file(self, *args, **kwargs):
+        raise NotImplementedError
+
+    def get_downloadable_files(self, *args, **kwargs):
+        raise NotImplementedError

py/selenium/webdriver/ie/webdriver.py

@@ -75,3 +75,9 @@ def quit(self) -> None:
             pass
         finally:
             self.service.stop()
+
+    def download_file(self, *args, **kwargs):
+        raise NotImplementedError
+
+    def get_downloadable_files(self, *args, **kwargs):
+        raise NotImplementedError

py/selenium/webdriver/safari/webdriver.py

@@ -108,3 +108,9 @@ def get_permission(self, permission):
     def debug(self):
         self.execute("ATTACH_DEBUGGER")
         self.execute_script("debugger;")
+
+    def download_file(self, *args, **kwargs):
+        raise NotImplementedError
+
+    def get_downloadable_files(self, *args, **kwargs):
+        raise NotImplementedError

py/selenium/webdriver/webkitgtk/webdriver.py

@@ -59,3 +59,9 @@ def quit(self):
             pass
         finally:
             self.service.stop()
+
+    def download_file(self, *args, **kwargs):
+        raise NotImplementedError
+
+    def get_downloadable_files(self, *args, **kwargs):
+        raise NotImplementedError

py/selenium/webdriver/wpewebkit/webdriver.py

@@ -59,3 +59,9 @@ def quit(self):
             pass
         finally:
             self.service.stop()
+
+    def download_file(self, *args, **kwargs):
+        raise NotImplementedError
+
+    def get_downloadable_files(self, *args, **kwargs):
+        raise NotImplementedError