Permission Denied for Buttons using WEBUI_DATA_FILES

[Jquitadamo]

I have successfully added some weather sensors and buttons to the Web UI to control a dew heater using WEBUI_DATA_FILES configuration setting.

However, when executing the python scripts via buttons, I am getting a permission denied:
'/home/pi/dewheater/web/stop.py' failed: sh: 1: /home/pi/dewheater/web/stop.py: Permission denied

Here is the text used to create the buttons
button - /home/pi/dewheater/web/start.py green play Start Thermostat
button - /home/pi/dewheater/web/stop.py red stop Stop Thermostat

I used WinSCP to ensure the custom directory and .py files have proper permission. See image below.

Any next suggestions?

Jason

[EricClaeys]

@Jquitadamo the first line in the script needs to start with #! followed by the full pathname to the Python interpreter (/usr/bin/python. ?). All the *.sh files have #!/bin/bash.

Eric

[Alex-developer]

As Eric said add the following as the first line of the python scripts

#!/usr/bin/python

[Jquitadamo]

Doh! I had a space in-between #!/usr/bin/ and python

Thanks for helping me realize that. The stop button works now! But I have a new error to solve when trying to start the dew heater.

'/home/pi/dewheater/dewheater.py' failed: Traceback (most recent call last):
File "/home/pi/dewheater/dewheater.py", line 15, in
gpio.setup(27, gpio.OUT)
RuntimeError: Not running on a RPi!

[Jquitadamo]

Ok, making some progress. I solved the 'Not running on a RPi!' issue. I had to add www-data to the gpio group using
sudo usermod -a -G gpio www-data and then reboot

However, now when I run the start script, the web server hangs and a reboot is required to reset.

[EricClaeys]

@Jquitadamo look in /var/log/lighttpd/error.log for any error messages. You can also have your script output debug messages in HTML format.

I noticed your Uptime is blank, which may be related.

You normally shouldn't need to reboot to fix a web issue. First try to close the hung window. If that doesn't work, restart the lighttpd service.