DPN Python Utils

A collection of python utils used by the DPN.

Target python version: 3.8.x

High-level Design Notes

To be broadly compatible with running in synchronous or asynchronous mode, the methods are designed to run in a synchronous fashion for all modules excluding async. The async module or other projects can utilise the methods in either fashion.

The principles behind the modules are to:

• Be dependable and provide least surprise
• Fail safe and raise informative exceptions
• Optimise code for readability and maintainability
• Design for intended eventual backwards compatibility

Major versions of dpn_pyutils releases track major Python versions in general availability, and follow semver versioning

Modules

Module Name	Module Description
async	Methods relating to async and event loop
cli	Methods relating to commandline input and output
common	Methods relating to logging and shared system services
crypto	Methods relating to cryptography and encoding
exceptions	Exception classes for all modules
file	Methods relating to file and path operations
http	Methods relating to general HTTP/REST
mq	Methods relating to message queing protocols
money	Methods relating to money, transactions, and formatting

Getting Started

The fastest way to get start is via pyenv.

With pyenv installed on the system, check the latest version of the target python version.

pyenv update && pyenv install -l | grep 3.8

Install and build with pip

Install and build with pip using wheel and setuptools.

Go to the releases page and pick a release tag, branch, or version.

Assuming a release tag of 3.0.0a4, install with pip using:

pip install git+https://github.com/davidpirogov/dpn_pyutils.git@3.0.0a4

Install manually

Install the target python version into pyenv and set up the virtualenv

pyenv install 3.8.11
pyenv virtualenv 3.8.11 dpn_pyutils
pyenv activate dpn_pyutils
pip install --upgrade pip
pip install -r requirements.txt

Building

Building dpn_pyutils can be done with python 3, setuptools and wheel.

python -m pip install --upgrade build
python -m build

The distribution-ready files will be in the dist/ directory.