Python 3.7 - Invalid syntax

[qathom]

Hello, thanks for creating this library!
I wanted to use it in a project but I'm getting the below error:

https://github.com/amogorkon/fuzzylogic/blob/master/src/fuzzylogic/classes.py#L441

File "C:\Users\myuser\anaconda3\lib\site-packages\fuzzylogic\classes.py", line 420
if (x := min(actual_values[k] for k in K if k in actual_values)) > 0]
^
SyntaxError: invalid syntax

Code

from fuzzylogic.classes import Domain
from fuzzylogic.functions import R, S, alpha

T = Domain("test", 0, 30, res=0.1)

[amogorkon]

Hey, which Python version are you using? The walrus operator was introduced in 3.8 if I recall correctly..

[qathom]

Hi @amogorkon , thanks for your prompt reply!
Oh yes, indeed I'm using Python 3.7.6
Sadly I can't use fuzzylogic in a project for the moment since I must use Python 3.7 (I have many packages which are not supporting Python 3.8 yet).
Looking forward for using it when possible! Is it planned to support other Python versions?

[amogorkon]

Hi, I think I used the walrus operator only in one or two places in the whole code. If you like, you can easily replace it with a simple assignment. I would do it for you, but I'm restricted to my mobile phone until next week or so.. I also could approve a PR if you want to make it official.

[qathom]

Hi @amogorkon, sorry for my late reply!
I'd be glad to contribute :) I have a busy week, but I will run some tests the next weekend.
I think it's a good idea to support Python 3.7 since its end of support is planned for 2023-06-27
I can also add a Github Action to run unit tests and check for Python compatibility.

[amogorkon]

Hey, I'd love to add you as contributor, so you can build that CI tooling. Sadly I can't really help, I'm still restricted to snail internet via mobile phone. Out of curiosity, what's your usecase for fuzzylogic?

[amogorkon]

Finally got internet again. Switched the walrus op back out, now it should be compatible with 3.7 again, although I couldn't test it on py37 properly.