mddj

Your DJ of MetaData.

Table of Contents

• Overview
• Installation
• Usage
• License

Overview

A CLI for interacting with your python package metadata.

Supports multiple packaging backends via a uniform interface.

Installation

pipx install mddj

Usage

Env Vars

Build Isolation

MDDJ_ISOLATED_BUILDS=0 can be set to disable the (default) behavior using isolated build environments when getting package metadata.

This requires that you have installed all of the build-system requirements in to the current environment, but will be much faster.

Commands

See --help on each command for more detail on supported options.

mddj read requires-python

Show the requires_python field.

mddj read version

Show the version.

mddj write version

Write a new version to a target file, defaulting to a version = ... assignment in pyproject.toml.

Supports configuration via pyproject.toml.

Config

Configuration for mddj can only be read from a tool.mddj table in pyproject.toml. No other configuration sources are supported.

write_version

This setting controls how version information is written for mddj write version.

It takes a colon delimited string with two or three values. Either {mode}:{path}:{key} or {mode}:{key}.

The only supported {mode} is "assign" (for now). {path} defaults to pyproject.toml if omitted. {key} is the name of the attribute used to assign a value.

This defaults to assign: version.

For example, the following config can be used to target a __version__ attribute in an __init__.py file in a src-layout project:

[tool.mddj]
write_version = "assign: src/foopkg/__init__.py: __version__"

License

mddj is distributed under the terms of the MIT license.