/usr/local/bin/chromedriver: cannot execute binary file: Exec format error when tring to use ChromeDriver with Selenium to work on a Raspberry Pi 4? - selenium

Question

I'm stuck trying to get my Selenium script running on my raspberry Pi 4 running with raspbian.
The script is running fine on my mac.
The problem is with setting up the webdriver. I tried installing several webdrivers, including chromedriver, geckodriver, operadriver and phantomjsdriver.
Whenever I'm trying to run the script (which I of course changed to the corresponding drivers) I'm greeted with the following error:
OSError: [Errno 8] Exec format error: 'operadriver'
Also trying to open the driver directly from the shell is resulting in an error:
pi#raspberrypi:/home/shares/users $ chromedriver
bash: /usr/local/bin/chromedriver: cannot execute binary file: Exec format error
My research found some people who got it to work, but all the posts seemed quite old. Some where suggesting the error is pointing to the cpu architecture which is armv7l/armhf in my case.
So is it at all possible to get Selenium running on a pi these days? Has anyone got this to work?

Answer 1

This error message with operadriver...
OSError: [Errno 8] Exec format error: 'operadriver'
and this error message with chromedriver...
ash: /usr/local/bin/chromedriver: cannot execute binary file: Exec format error
...implies that the respective OperaDriver and the ChromeDriver binaries which were invoked was not in proper format.
On your macos system you have used the following WebDriver variants:
GeckoDriver: geckodriver-v0.26.0-macos.tar.gz
ChromeDriver: chromedriver_mac64.tar.gz
where the WebDriver variants matched the underlying os architecture.
Now as you are using armv7 architecture, you have to download and use the relevant format and version of executables downloading it from WebDriver driver for the Chromium Browser
Note: It is to be noted that from geckodriver v0.24.0 onwards:
Removed
Turned off builds for arm7hf, which will no longer be released but can still be built from the source.
References
You can find a couple of relevant discussions in:
OSError: [Errno 8] Exec format error with GeckoDriver and Selenium on MacOS
WebDriverException: Message: Service /usr/lib/chromium-browser/chromedriver unexpectedly exited on Raspberry-Pi with ChromeDriver and Selenium