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OSError: [Errno 8] Exec format error: ‘geckodriver’ when trying to open firefox using selenium in python

from selenium import webdriver

browser = webdriver.Firefox(executable_path="/usr/bin/geckodriver")
browser.get('http://www.ubuntu.com/')

The entire stack trace looks like:

Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/local/lib/python3.6/dist-packages/selenium/webdriver/firefox/webdriver.py", line 160, in __init__
self.service.start()
File "/usr/local/lib/python3.6/dist-packages/selenium/webdriver/common/service.py", line 76, in start
stdin=PIPE)
File "/usr/lib/python3.6/subprocess.py", line 709, in __init__
restore_signals, start_new_session)
File "/usr/lib/python3.6/subprocess.py", line 1344, in _execute_child
raise child_exception_type(errno_num, err_msg, err_filename)
OSError: [Errno 8] Exec format error: 'geckodriver'

my path to geckodriver is:

/usr/bin/geckodriver

And selenium is in:

selenium in /usr/local/lib/python3.6/dist-packages (3.12.0)

Thanks in advance!

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Answer

You have most probably installed a version of geckodriver that is meant for a different OS/platform! get the correct version from https://github.com/mozilla/geckodriver/releases and replace the one you have.

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