ImportError: cannot import name lru_cache and cannot seem to solve it

[aberlee]

Hi! 

 

I have a workflow which uses a Script Filter that uses python 

 

It imports Tasklib module to access a program called Taskwarrior

 

I've added : 

 

from workflow import Workflow
import sys

def main(wf):
    import tasklib  # Imported from ./lib

if __name__ == '__main__':
    wf = Workflow(libraries=['./lib'])
    sys.exit(wf.run(main))

from lib import tasklib

I've installed using pip3 in the ./lib folder. 

 

I've tried adding: 

try:
    from functools import lru_cache
except ImportError:
    from backports.functools_lru_cache import lru_cache

Nothing changed. I tried adding the above to the backends.py in the tasklib module where it imports lru_cache from functools.

 

Then a whole lot of other errors pop up. 

 

I'm thinking it's a python 2.7 vs. python 3 issue? Anyone else have any idea / suggestions what I can do? 

 

Thanks in advance!

 

 

[deanishe]

2 hours ago, aberlee said:

I'm thinking it's a python 2.7 vs. python 3 issue?

 

Almost certainly. You're using Python 2 and there is no functools.lru_cache in Python 2: the library you appear to be using doesn't support Python 2.

 

[aberlee]

Many thanks @deanishe. Well that seems to end my attempt to include this library then.. too bad.. unless..

 

Maybe a stupid follow-up. But is there a way to force Alfred to use python 3?

Edited August 6, 2020 by aberlee

[deanishe]

11 minutes ago, aberlee said:

But is there a way to force Alfred to use python 3?

 

No. It would break anything that expects Python 2, and it’s pointless anyway. Nobody uses “Language = /usr/bin/python” because putting code in the Script box is silly. Use External Script (or “Language = /bin/bash”) and an appropriate shebang (#!/usr/bin/python3) in your script.

 

Edited August 6, 2020 by deanishe

[aberlee]

ok thanks!

[deanishe]

Be aware that Alfred-Workflow doesn't support Python 3 and will probably blow up in your face if you try to use it with Py3.