how to extract numbers from a string

[upymar]

I'm trying to pass numbers from a received mqtt message to neopixel.

On my pc i got it to work with

Code: Select all

import re
msg = "rgb(124,95,8)"
r,g,b = re.findall('\d+',msg)

Unfortunately micropythons ure module doesn't know findall function.

Any Suggestionen?

[kevinkk525]

If you always get a message looking like that then it's easy:

r,g,b = msg[4:-1].split(",")

Not that r,g,b are still strings, so if you need int you'll have to convert them first.

[pythoncoder]

Note that r,g,b are still strings, so if you need int you'll have to convert them first.

For example by

Code: Select all

r, g, b = [int(x) for x in msg[4:-1].split(",")]

[upymar]

Thank you, that works great!