Fresh install still has writing grammar bug

[michaelaye]

Describe the bug

A fresh conda env with minimal install of

• black
• jupyterlab
• jupyterlab_code_formatter

still shows the long known (#2681 , #1143) "Writing grammar tables.... Writing failed" bug:

Generating grammar tables from /home/maye/mambaforge/envs/black_bug/lib/python3.10/site-packages/blib2to3/Grammar.txt
Writing grammar tables to /home/maye/.cache/black/22.3.0/Grammar3.10.4.final.0.pickle
Writing failed: [Errno 2] No such file or directory: '/home/maye/.cache/black/22.3.0/tmp6pup1qkm'
Generating grammar tables from /home/maye/mambaforge/envs/black_bug/lib/python3.10/site-packages/blib2to3/PatternGrammar.txt
Writing grammar tables to /home/maye/.cache/black/22.3.0/PatternGrammar3.10.4.final.0.pickle
Writing failed: [Errno 2] No such file or directory: '/home/maye/.cache/black/22.3.0/tmp95bkx21m'

To Reproduce

conda create -n black_bug python=3.10 -c conda-forge
conda activate black_bug
mamba install jupyterlab black jupyterlab_code_formatter

Launch jlab with jupyterlab

Open a notebook, put some code to format in.
Activate "Format cell" via context menu.
See error in terminal log

Expected behavior

That the required subfolder for the black version is created before writing into it is tried.

Environment

• Black's version: 22.3.0 (compiled: no)
• OS and Python version: Linux, Python 3.10 via conda

[fbfokus]

I receive the same bug when starting jupyter lab:

Generating grammar tables from /opt/conda/lib/python3.8/site-packages/blib2to3/Grammar.txt
Writing grammar tables to /root/.cache/black/22.3.0/Grammar3.8.8.final.0.pickle
Writing failed: [Errno 2] No such file or directory: '/root/.cache/black/22.3.0/tmp5v0nw2kn'
Generating grammar tables from /opt/conda/lib/python3.8/site-packages/blib2to3/PatternGrammar.txt
Writing grammar tables to /root/.cache/black/22.3.0/PatternGrammar3.8.8.final.0.pickle
Writing failed: [Errno 2] No such file or directory: '/root/.cache/black/22.3.0/tmpzuzu9a0f'

My requirements.txt looks like this:

ipython==8.3.0
Jinja2==3.1.2
pydantic==1.8.0
jupyter==1.0.0
jupyterlab==3.4.0
jedi-language-server==0.36.0
jupyterlab-lsp==3.10.1
python-lsp-server[all]==1.4.1
jupyterlab-code-formatter==1.4.11
jupyterlab-git==0.37.1
git+https://github.com/twalcari/jupyterlab_tensorboard.git
black==22.3.0
isort==5.10.1
traitlets==5.2.1.post0
jedi==0.18.1