Add some small info on building python packages

pages/04.other/python/default.en.md

@@ -5,6 +5,36 @@ visible: true
 
 [toc]
 
+## Packaging
+
+### Building
+
+If `setup.py` or `pyproject.toml` are properly configured, the command below can be used to build a python package.
+
+```sh
+python -m build
+```
+
+### Install local package
+
+Pip can be used to install a local package for testing purposes.
+
+```sh
+pip install dist/{PACKAGE NAME}.whl
+```
+
+### Push to PyPI
+
+```sh
+python -m twine upload --skip-existing dist/*
+```
+
+To test packaging stuff, it is recommended to push packages to testpypi instead.
+
+```sh
+python -m twine upload --skip-existing --repository testpypi dist/*
+```
+
 ## Exit on Keyboard Interrupt
 
 ```python