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Contracts, subs, and environment for handling exceptions in POP

Project description

Made with pop, a Python implementation of Plugin Oriented Programming Made with Python

Contracts, subs, and environment for handling exceptions in POP.


This project contains app-merge components for POP. It adds a sub for exception hooks and for exceptions. This provides a predictable structure for using exceptions in POP.

What is POP?

This project is built with pop, a Python-based implementation of Plugin Oriented Programming (POP). POP seeks to bring together concepts and wisdom from the history of computing in new ways to solve modern computing problems.

For more information:

Getting Started


  • Python 3.7+

  • git (if installing from source, or contributing to the project)


If wanting to use pop-except, you can do so by either installing from PyPI or from source.

Install from PyPI

pip install pop-except

Install from source

# clone repo
git clone
cd pop-except

# Setup venv
python3 -m venv .venv
source .venv/bin/activate
pip install -e .


In your project’s main __init__ function extend the pop_except namespace:

def __init__(hub):

After your code initializes hub.OPT, call pop_except’s configure function:

def __cli__(hub):
    hub.pop.config.load(["my_app", "pop_except"], cli=""my_app")


Reference the open issues for a list of proposed features (and known issues).


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