OSError: [Errno 8] Exec format error with GeckoDriver and Selenium on MacOS

Question

I am using firefox gecko driver to make a bot, I keep getting error messages with my bot and I have found that the source of the message is the:

from selenium import webdriver

browser= webdriver.Firefox()

lines.

I have added every file mentioned in the error message to path including gecko driver, firefox, and the other smaller documents. I am at a complete loss

Here is the error message:

Traceback (most recent call last):
  File "/usr/local/bin/fuckobot1.py", line 3, in <module>
    browser= webdriver.Firefox()

File "/Users/'myname'/Library/Python/2.7/lib/python/site-packages/selenium/webdriver/firefox/webdriver.py", line 164, in __init__
    self.service.start()

File "/Users/'myname'/Library/Python/2.7/lib/python/site-packages/selenium/webdriver/common/service.py", line 76, in start
    stdin=PIPE)

File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 710, in __init__
    errread, errwrite)

File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 1335, in _execute_child

raise child_exception
OSError: [Errno 8] Exec format error

This is probably happened due to using an executable that is not meant for your operation system, which OS are you using? — Fernando Irarrázaval G, Oct 15 '18 at 02:01
im very sorry, im a beginner that bit off more than he could chew by promising a friend that he would help him with a bot. — PYANNANANA, Oct 15 '18 at 02:14
Do you need geckodriver? You can download the chromedrive and use this line of code `driver = webdriver.Chrome('/path/to/chromedriver')` http://chromedriver.chromium.org/getting-started` — Fernando Irarrázaval G, Oct 15 '18 at 02:14
sorry what i meant was i have the URL codes(from inspect element) of the website i am using on firefox, and i need to finish this code by wednesday so unless the inspect element codes are a constant, i cant make the switch — PYANNANANA, Oct 15 '18 at 02:17
i understand that but I have search element codes in which i use specific spots of a page in order to buy an item. the codes are not interchangeable between chrome and firefox — PYANNANANA, Oct 15 '18 at 02:21
Try confirming it with another tool possibly like [katalon](https://www.katalon.com/) and a basic test to open the page. — lloyd, Oct 15 '18 at 03:10
Possible duplicate of [OSError: \[Errno 8\] Exec format error: 'geckodriver' when trying to open firefox using selenium in python](https://stackoverflow.com/questions/50662674/oserror-errno-8-exec-format-error-geckodriver-when-trying-to-open-firefox) — xrisk, Oct 15 '18 at 03:44

score 4 · Accepted Answer · answered Oct 15 '18 at 05:14

4

This error message...

OSError: [Errno 8] Exec format error

...implies that the GeckoDriver binary which was invoked was not in proper format.

Your main issue is the incompatibility of the GeckoDriver binary format with respect to the underlying Operating System.

As you are on MacOS you need to download geckodriver-v0.23.0-macos.tar.gz from mozilla/geckodriver, untar/unzip it and provide the absolute path of the GeckoDriver through the argument executable_path as follows:

from selenium import webdriver

browser= webdriver.Firefox(executable_path='/path/to/geckodriver')

answered Oct 15 '18 at 05:14

undetected Selenium

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i do have annother small problem, I put geckodriver into path but i still get the error message 'geckodriver' executable needs to be in PATH. – PYANNANANA Oct 15 '18 at 13:19
Im not entirely sure what that means. please clarify. – PYANNANANA Oct 15 '18 at 13:24
@PYANNANANA I meant can you raise a new question along with the trace logs please? – undetected Selenium Oct 15 '18 at 14:11
i tried, but I am at my limit for some reason, I've asked too many. stack overflow will not let me – PYANNANANA Oct 15 '18 at 14:26
please help, im not sure what to do – PYANNANANA Oct 15 '18 at 16:53

Ashish Kamble · Answer 2 · 2018-10-15T03:37:13.070

This may be answer to this issue,
when it shows something like, Your Firefox profile cannot be loaded. It may be missing or inaccessible.
Actual problem is, Firefox 48.0 or greater not works with selenium 3.0.0 or greater version.
so please check your versions. so, to make it work you need to update with recent selenium and respective geckodriver version too that fixes this issue.

then try basic commands,

from selenium import webdriver
from selenium.webdriver.common.keys import Keys

driver = webdriver.Firefox()

OSError: [Errno 8] Exec format error with GeckoDriver and Selenium on MacOS

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