Add guide to setup cron task with new virtualenv

[Former user]

Hi,

Could you add some tips to the readme to help setup a Cron task with the new python3 virtual environment and autograbber.

[Former user]

Example of my bash script that doesn't work.

mabo@debian:~$ cat auto-grab-env.sh 
#/bin/sh

source /home/mabo/webdl/.virtualenv/bin/activate

sudo -u mabo /home/mabo/webdl/autograbber.py  /home/mabo/Videos /home/mabo/webdl/patterns.txt

Error that I get when running the script.

mabo@debian:~$ ./auto-grab-env.sh 
Traceback (most recent call last):
  File "/home/mabo/webdl/autograbber.py", line 3, in <module>
    from common import load_root_node
  File "/home/mabo/webdl/common.py", line 9, in <module>
    import requests_cache
ImportError: No module named 'requests_cache

[delx]

The reason your script doesn't work is that you are activating the virtualenv and then using sudo. Running sudo resets your environment variables, so this is the same as not activating the virtualenv at all.

I've committed the script which I use to the git repo. Hopefully that'll help.

[Former user]

The problem I am seeing is related to my unique setup because I use webdl via a VPN connection.

This appears to work;

mabo@debian:~$ cat auto-grab-env.sh 
#/bin/sh

source /home/mabo/webdl/.virtualenv/bin/activate

/home/mabo/webdl/autograbber.py  /home/mabo/Videos /home/mabo/webdl/patterns.txt