Editable installs let you do exactly this. To install a Python package in editable mode, all you need to do is use the -e flag, and pass the path to the package’s directory: ...

A malicious package named 'pycord-self' on the Python package index (PyPI) targets Discord developers to steal authentication tokens and plant a backdoor for remote control over the system.

A malicious Python package targeting Discord developers with remote access trojan (RAT) malware was spotted on the Python Package Index (PyPI) after more than three years.