Using CircuitPython Libraries from GitHub Moderators: adafruit_support_bill, adafruit

[JSE98]

Hello,

I'm able to use the libraries easily that are included in the CircuitPython library bundle, but when I download a library like ulab here: https://github.com/adafruit/circuitpython-ulab, I can't figure out how to use it. I get "ImportError: no module named 'ulab'" when moving the folder into the lib folder on the CIRCUITPY drive. Any tips on using a library like this would be greatly appreciated!

[adafruit_support_carter]

How exactly are you downloading it from Github? Are you cloning the repo or downloading release assets? Or something else?

Here's some basic info on Library installing:
https://learn.adafruit.com/welcome-to-c ... -libraries

[dastels]

From the readme:

ulab is a numpy-like array manipulation library for micropython. The module is written in C, defines compact containers for numerical data, and is fast.

ulab will be incorporated in builds of most CircuitPython supported devices, so there's usually no need to use the files here directly.

It's meant to be part of the CircuitPython runtime, it's not an addon module, so it will be there already and needs to simply be imported. CircuitPython 5.3.0 includes ulab.

Dave

[JSE98]

Oh okay, so it's a built-in module for certain boards? Thank you!

[adafruit_support_carter]

For that module, yes. In general, the files in the CIRCUITPY/lib folder need to be .mpy (or .py) files.

It's best to get those from the bundle so you are using the latest release version vs. the current code in the repo, which may be in a development state.