[SOLVED] Git rev-parse HEAD error when doing pip install

Git rev-parse HEAD error when doing pip install

When trying to install the python package datatable, I get the following error:

(venv) PS C:\Users\MART\Documents\Environments\cyber_analytics> pip install --no-cache-dir datatable
Collecting datatable
  Downloading datatable-0.11.1.tar.gz (1.0 MB)
     |████████████████████████████████| 1.0 MB 2.2 MB/s
  Getting requirements to build wheel ... done
    Preparing wheel metadata ... error
    ERROR: Command errored out with exit status 1:
     command: 'c:\users\mart\documents\environments\cyber_analytics\venv\scripts\python.exe' 'c:\users\mart\documents\environments\cyber_analytics\venv\lib\site-packages\pip\_vendor\pep517\in_process\_in_process.py' prepare_metadata_for_build_wheel 'C:\Users\MART\AppData\Local\Temp\tmpk2pl2ss5'
         cwd: C:\Users\MART\AppData\Local\Temp\pip-install-n_splmzn\datatable_1a7c5d06a08549a2a938f9d9bd82ab76
    Complete output (2 lines):
    Command `git rev-parse HEAD` failed with code 128: fatal: not a git repository (or any of the parent directories): .git

I have git installed on my machine and have been doing work with repos already. Not using a VPN. git commands work just fine from Powershell. Same error regardless of pip install into venv or general pip install. Also get the same error from git bash. Not sure what this could be.

Solution

You can solve this by switching from Python 3.9.5 to Python 3.8.x, since the datatable package has wheels for Python versions 3.6-8.x.