NppPyInline: Calculator and Python right inside Notepad++

Readme.ru

NppPyInline is a Python runtime environment right inside Notepad++. You write code in the Notepad++ text editor between _beg_ and _end_ markers and run it with a single command. Calculation results appear on the same lines or at the end of the block.

This is not a replacement for a full-fledged IDE. It's a tool for quick scenarios where you don't want to switch to a console, open Jupyter Notebook, or write a separate .py file.

When is it useful

• Calculate something with intermediate variables — a powerful calculator with memory
• Quickly test a small piece of code — without creating a separate file
• Process data directly in a text file — results appear right next to the source data
• Rough out a prototype — without leaving Notepad++

What it looks like

Example 1: Simple calculations Finding the hypotenuse of a right triangle and computing the sines of the angles.

_beg_
a = 5
b = 50

# ? - print operator
c = (a**2 + b**2)**0.5 ?.4 50.2494

# out() outputs data as a single block after end
out("Hypotenuse = {:.2f}".format(c))

sin_a = a / c
out("sin_a = {:.5f}".format(sin_a))

sin_b = b / c
out("sin_b = {:.5f}".format(sin_b))
_end_
# > Hypotenuse = 50.25
# > sin_a = 0.09950
# > sin_b = 0.99504

Documentation

A detailed description of all features is available in MANUAL.md

Project Status

✅ All planned functionality has been implemented.
🔧 The author fixes bugs but does not add new features.
🤝 Pull Requests with reasonable enhancements are welcome.

📝 License

The project is distributed under the MIT License. See the LICENSE file for details. You are free to use, modify, and distribute this code.