monkepad
A simple Notepad-like editor written in Python.
Since MonkePad is written in one file, all your customization can be done without much trouble, and you can transfer it easily.
Note: MonkePad should be run with python3 NOT python because of different module names between the versions.
Modification
MonkePad has multiple constants declared near the top of the file
You can change these to fit your wants. For example:
Building
pip install pyinstaller
pyinstaller --onefile monkepad.py
