# Selenium python file cannot be executed in nodered
**URL:** https://discourse.nodered.org/t/selenium-python-file-cannot-be-executed-in-nodered/48694
**Category:** General
**Created:** [21 July 2021 08:36 UTC](https://discourse.nodered.org/t/selenium-python-file-cannot-be-executed-in-nodered/48694 "2021-07-21T08:36:08Z")
**Posts on this page:** 12
**Page:** 1
### Author:  [@Athurian](https://discourse.nodered.org/u/Athurian)
#### Post date: [21 July 2021 08:36 UTC](https://discourse.nodered.org/t/selenium-python-file-cannot-be-executed-in-nodered/48694/1 "2021-07-21T08:36:08Z")
I created a python file to automatically press a button on a specific webpage by a message.
The sequence is as follows.
raspberry pi 4b
1. sudo pip3 install selenium, sudo pip install selenium
2. sudo apt-get install chromium-chromedriver
3. The contents of the python file are as follows.
#!/usr/bin/python
import time
from selenium import webdriver
browser=webdriver.Chrome('/usr/lib/chromium-browser/chromeddriver')
url='[https://www.naver.com](https://www.naver.com)'
browser.get(url)
click=browser.find\_element\_by\_xpath("//\*[@id='NM\_darkmode\_btn']")
click.click()
time. sleep(10)
This is by pressing the dark mode button on [www.naver.com](http://www.naver.com).
Actually when I run python naver.py in raspberry pi cmd it works very well.
However, it cannot be executed in nodered exec.
Can I know why?
For reference, it seems that other python files are not only related to selenium.
The red box in the image is the button that is automatically pressed.
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### Author:  [@Colin](https://discourse.nodered.org/u/Colin)
#### Post date: [21 July 2021 20:29 UTC](https://discourse.nodered.org/t/selenium-python-file-cannot-be-executed-in-nodered/48694/2 "2021-07-21T20:29:37Z")
Is this a continuation of your [previous thread](https://discourse.nodered.org/t/python-file-cannot-be-executed-with-exec-node/48620) that you said was solved, or is it a different problem?
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### Author:  [@Athurian](https://discourse.nodered.org/u/Athurian)
#### Post date: [22 July 2021 01:53 UTC](https://discourse.nodered.org/t/selenium-python-file-cannot-be-executed-in-nodered/48694/3 "2021-07-22T01:53:05Z")
This is a continuation of this issue.
Actually, Python worked normally in cmd.
So, of course, I thought it would be Nordred.
But strangely, only selenium python code does not work with exec.
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### Author:  [@Colin](https://discourse.nodered.org/u/Colin)
#### Post date: [22 July 2021 06:17 UTC](https://discourse.nodered.org/t/selenium-python-file-cannot-be-executed-in-nodered/48694/4 "2021-07-22T06:17:19Z")
1. In what way does it not work?
2. If you run it from an ssh shell does it work?
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### Author:  [@Athurian](https://discourse.nodered.org/u/Athurian)
#### Post date: [22 July 2021 08:11 UTC](https://discourse.nodered.org/t/selenium-python-file-cannot-be-executed-in-nodered/48694/5 "2021-07-22T08:11:08Z")
It works fine in raspberry pi cmd.
For example, when running in cmd, the browser opens and the button is clicked.
However, nothing happens when used in nodered.
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### Author:  [@Colin](https://discourse.nodered.org/u/Colin)
#### Post date: [22 July 2021 13:27 UTC](https://discourse.nodered.org/t/selenium-python-file-cannot-be-executed-in-nodered/48694/6 "2021-07-22T13:27:29Z")
> [@Athurian](#):
>
> It works fine in raspberry pi cmd.
That isn't what I asked. Are you running an ssh shell into the pi or are you running it on a keyboard/display plugged into the pi?
> [@Athurian](#):
>
> nothing happens when used in nodered.
I think it unlikely that nothing happens, it is just that what you hoped for does not happen. In your previous thread I suggested connecting debug nodes set to show Complete Message to all outputs of the exec node and looking to see what they show. Did you do that?
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### Author:  [@dceejay](https://discourse.nodered.org/u/dceejay)
#### Post date: [22 July 2021 13:59 UTC](https://discourse.nodered.org/t/selenium-python-file-cannot-be-executed-in-nodered/48694/7 "2021-07-22T13:59:50Z")
If run as a service node-red in the background won’t have a display attached so it won’t be able to open the browser etc. You may be able to add a DISPLAY setting to the command.
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### Author:  [@Athurian](https://discourse.nodered.org/u/Athurian)
#### Post date: [23 July 2021 00:56 UTC](https://discourse.nodered.org/t/selenium-python-file-cannot-be-executed-in-nodered/48694/8 "2021-07-23T00:56:35Z")
> [@dceejay](#):
>
> 백그라
A keyboard and display connected to the Pi.
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### Author:  [@Athurian](https://discourse.nodered.org/u/Athurian)
#### Post date: [23 July 2021 01:25 UTC](https://discourse.nodered.org/t/selenium-python-file-cannot-be-executed-in-nodered/48694/9 "2021-07-23T01:25:04Z")
I am trying to enter the display command, what should I do?
For example
/usr/bin/python /home/pi/naver.py display
Should I do this?
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### Author:  [@Colin](https://discourse.nodered.org/u/Colin)
#### Post date: [23 July 2021 16:28 UTC](https://discourse.nodered.org/t/selenium-python-file-cannot-be-executed-in-nodered/48694/10 "2021-07-23T16:28:39Z")
No, it should be something like
`DISPLAY=:1 usr/bin/python /home/pi/naver.py`
or perhaps `:0`, it is not easy to predict which virtual display will work.
That was why I asked whether it worked from an ssh shell, which you apparently ignored, as that would exhibit the same issue, if this is indeed the problem.
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### Author:  [@Athurian](https://discourse.nodered.org/u/Athurian)
#### Post date: [24 July 2021 05:25 UTC](https://discourse.nodered.org/t/selenium-python-file-cannot-be-executed-in-nodered/48694/11 "2021-07-24T05:25:19Z")
It's the weekend, so I'll try it on Monday. thank you.
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### Author:  [@system](https://discourse.nodered.org/u/system)
#### Post date: [22 September 2021 05:26 UTC](https://discourse.nodered.org/t/selenium-python-file-cannot-be-executed-in-nodered/48694/12 "2021-09-22T05:26:13Z")
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