python devtools

Python's missing debug print command and other development tools.

For more information, see documentation.

Install

Just

pip install devtools

If you've got python 3.10+ and pip installed, you're good to go.

Usage

from devtools import debug

whatever = [1, 2, 3]
debug(whatever)

Outputs:

test.py:4 <module>:
    whatever: [1, 2, 3] (list) len=3

That's only the tip of the iceberg, for example:

import numpy as np
from devtools import debug

data = {
    'foo': np.array(range(20)),
    'bar': {'apple', 'banana', 'carrot', 'grapefruit'},
    'spam': [{'a': i, 'b': (i for i in range(3))} for i in range(3)],
    'sentence': 'this is just a boring sentence.\n' * 4
}

debug(data)

outputs:

Usage without Import

devtools can be used without from devtools import debug if you add debug into builtins in sitecustomize.py.

For instructions on adding debug to builtins, see the installation docs.