fr1ll / nbdev-repro-cwd-err

reproduce an error involving current working directory (cwd)

nbdev-repro-cwd-err

Description of the error

The notebook nbs/00_core.ipynb reproduces an error with nbdev_readme I’m trying to understand in my clip-plot repo.

Intended behavior: Copy some data from a path relative to code execution (the assets folder) into a code relative to the current working directory:

from shutil import copytree
from pathlib import Path
src = Path(__file__).parents[1] / "assets"
dest = Path().cwd() / "output"
copytree(src, dest, dirs_exist_ok=True)

Since the __file__ attribute doesn’t exist in the notebook, I first set it to Path().cwd() in a cell with a #| hide directive.

Observations: - The notebook runs fine on its own - nbdev_test passes - the script 00_core.py created by nbdev_export runs fine - nbdev_readme fails with this error due to 00_core.ipynb:

NameError: name '__file__' is not defined

• If I set __file__ to cwd without a #| hide directive, I get cwd as the root of my repo rather than as the nbds or other folder.

Basic question: It looks like nbdev_readme runs 00_core.ipynb in iPython. What’s the best way to execute stuff that we don’t want to run in the script, such as setting __file__? What’s the best way to think about this?

Install

pip install nbdev_repro_cwd_err