[Fixed] Python appium webdriver.Remote errors with 'NoneType' object has no attribute 'to_capabilities' – Python

by
Liam Thompson
appium bluestacks python

The Solutions:

Solution 1: Use UiAutomator2Options class to manage capabilities

The Appium version you’re using may have changed the function signature for setting capabilities. Instead of using a dictionary directly, you can use the UiAutomator2Options class provided by the ‘appium.options.android’ module.

Here’s an example of how you can use the UiAutomator2Options class to load and manage capabilities:

from appium.options.android import UiAutomator2Options

class TestAppium(unittest.TestCase):
    def setUp(self) -> None:
        options = UiAutomator2Options()
        options.load_capabilities(capabilities)
        self.driver = webdriver.Remote(appium_server_url, options=options)
  1. Import the UiAutomator2Options class from the appium.options.android module.

  2. Initialize an instance of UiAutomator2Options named ‘options’.

  3. Call the ‘load_capabilities’ method of ‘options’ and pass in the ‘capabilities’ dictionary. This will load the capabilities into the UiAutomator2Options instance.

  4. Use the UiAutomator2Options instance as the ‘options’ parameter when creating the Remote WebDriver connection using the ‘webdriver.Remote’ function.

This should resolve the ‘NoneType object has no attribute ‘to_capabilities” error and allow you to establish a connection to the desired Android device using Appium.

Q&A

What could I do to fix ‘NoneType\u2019 object has no attribute \u2018to_capabilities\u2019 issue?

Try using the UiAutomator2Options class and load the capabilities into it before creating the Remote webdriver instance.

What is the new function signature for creating an Appium Remote webdriver instance?

webdriver.Remote(appium_server_url, options=options), where options is an instance of UiAutomator2Options.

Video Explanation:

The following video, titled "Appium: Part 9 - How To Fix Appium xcodebuild Error 65 - YouTube", provides additional insights and in-depth exploration related to the topics discussed in this post.

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