pkgcreator 0.1.0

Create python package structure, necessary files with content, git repository and venv.

pkgcreator is a Python CLI tool that helps you quickly set up a new Python package with a recommended folder structure, a virtual environment, license file, Git repository, and pre-filled configuration files like pyproject.toml and README.md.

It supports interactive prompts, smart defaults (e.g. from your Git config), and includes additional utilities like a GitHub folder downloader, CLI/formatter helpers, and virtual environment management.

Whether you're preparing a new project or just want a clean setup for your next internal tool — pkgcreator automates the boilerplate and saves you time.

Developed and maintained by Philipp Meder.

• Source code: https://github.com/PhilippMeder/pkgcreator.git
• Report bugs: https://github.com/PhilippMeder/pkgcreator/issues

Quick overview:

1. Quick Start
2. License
3. Features (most interesting part)
4. Requirements and Dependencies

Quick Start

Install this package (replace pkgcreator with pkgcreator[full] to install all optional dependencies on Python packages):

pip install pkgcreator

Create a new package structure, initialise Git, create a virtual environment, and include the MIT license:

pkgcreator create mypackage --git --venv --license MIT

For a detailed list of available options, see the section Package Structure Creator.

License

Distributed under the BSD 3-Clause License.

Features

Following features are covered here, with focus on the main feature Package Structure Creator.

1. Package Structure Creator
   1. Creating the package structure
   2. Configuring the creation process and adding Git/venv
   3. Configuring project settings
   4. Using preselections and suggestions
2. Accessing Git with Python
3. GitHub Downloader
   1. Python version
   2. Bash version
4. Creating and Managing Virtual Environments
5. Tools
   1. Logging tools
   2. CLI tools

To use the core features, you may directly call one of the two following lines:

pkgcreator [OPTIONS]
python -m pkgcreator [OPTIONS]

For a list of available options, see the next sections or run:

pkgcreator --help

Package Structure Creator

Create a typical file structure for a python package with the necessary files and their content.

Creating the package structure

Running pkgcreator create <NAME> will create the following package structure as officially recommended:

• NAME
  • src/NAME
    • __init__.py
    • __main__.py (if the --script option is used)
  • .gitignore (with some presets)
  • LICENSE (with content if the -l, --license> option is used)
  • pyproject.toml (with content according to the options used, see --help)
  • README.md (with content according to the options used, see --help)

For a list of available options, read the next sections or run:

pkgcreator create --help

Configuring the creation process and adding Git/venv

There are several important options you may consider when creating the package structure:

• Adding a license text with --license <LICENSE>:

  Using the -l, --license <LICENSE> option allows you to add the text of <LICENSE> if this is a valid identifier. To list all available identifiers, use --list-licenses. This option requires the python package requests and will fail if it is not installed.

• Initialising a Git repository with --git:

  If Git is available on your system, using the --git option automatically initialises a Git repository and commits all created files.

• Creating a virtual environment with --venv:

  Using the --venv option automatically creates a virtual environment in NAME/.venv (ignored by Git) and installs the created package in editable mode so you can run it as python -m <NAME> or import it with import <NAME> inside the activated environment.

• Providing the package as a script with --script:

  Using the --script option will create a __main__.py with function main() that is called whenever you run the package as a module (python -m <NAME>). In addition, the pyproject.toml registers the terminal command <NAME> that will also call this function.

Using preselections and suggestions

If not explicitly set, some arguments will suggest values based on context:

• --github-repositoryname may suggest using the package name
• --author-name may suggest using user.name from git config, if available
• --author-mail may suggest using user.email from git config, if available
• --git may ask whether to initialise a Git repository
• --venv may ask whether to initialise a virtual environment and install the package in editable mode

Use the -m, --prompt-mode option to control whether these suggestions are shown or automatically handled:

Option	yes	auto	no
--github-repositoryname	✅	✅	❌
--author-name	✅	✅	❌
--author-mail	✅	✅	❌
--git	✅	❌	❌
--venv	✅	❌	❌

• yes: Automatically accept all suggestions
• no: Skip all prompts and use defaults or leave unset
• auto: Accept safe suggestions only (e.g., use Git info, but skip Git initialisation)
• ask (default): Prompt interactively for each case, and ask again before creating the project structure

Configuring project settings

There are a bunch of variables that are used for the creation of the pyproject.toml, README.md, and LICENSE (if -l is used).

These can be changed later in the mentioned files.

Available options are (the names are self-explanatory):

Option	Notes
--description
--author-name	suggests git config user.name if not set
--author-mail	suggests git config user.email if not set
--github-username	used for various project URLs (if not provided)
--github-repositoryname	used for various project URLs (if not provided), suggests the package name if not set

In addition, a typical package also links to some of its online resources. If not set, each of them will link to a subpage of the github repository defined by --github-username and --github-repositoryname.

• --changelog
• --documentation
• --download
• --funding
• --homepage
• --issues
• --releasenotes
• --source

If some dependencies, optional dependencies or classifiers (for PyPI) are already known, they can be set with the following commands:

• --dependencies package1 package2 ...
• --optional-dependencies package1 package2 ... (available as a [full] option during package installation)
• --classifiers classifier1 classifier2 ... (for a full list see PyPI classifier)

Accessing Git with Python

This feature is provided for completeness since it is used as a handy tool during the package structure creation process. You may run

pkgcreator git --help

to list the available options. However, running Git directly is usually more flexible and preferred.

GitHub Downloader

Download a specific folder (or the entire contents) from a public GitHub repository using the GitHub API.

Python version

Features:

• Downloads a subfolder or the full repository
• Supports branch selection
• Recursive or non-recursive download

Usage:

To download the repository contents (default branch main), run:

pkgcreator github-download <OWNER> <REPOSITORY> [OPTIONS]

Available options are (run pkgcreator github-download --help for a full list):

• -b, --branch Selects the branch name (default: main).
• -s, --subfolder If not provided, download the full repository. If set to a subdirectory of the repository, download this subdirectory. If set to a single file, only download this file.
• -d, --destination Local directory where the files should be downloaded to (default: ./downloaded_).
• -n, --no-recursive Do not download folders recursively.
• --list List the content of the repository (or the given subfolder) and exit.

Note: The GitHub API limits the number of requests per time period. For more information see the Rate limits for the REST API.

Bash version

For completeness, a bash version is provided.

Located in: github_download.sh

Features:

• Uses git sparse-checkout to efficiently fetch only a folder
• Minimal download size, ideal for large repositories

Usage:

./github_download.sh ExampleOwner example_repo main ./target_folder subdir/in/repo

Arguments:

<owner> <repo> [branch=main] [target_dir=<repo>_sparse] [folder=None]

If no folder is specified, the full repository is checked out.

Creating and Managing Virtual Environments

The command

pkgcreator venv [OPTIONS]

can create a virtual environment and install packages in this environment. Available options are (run pkgcreator github-download --help for a full list):

• -d, --destination Directory where the venv folder will be created (default: current working directory).
• -c, --create Create the virtual environment.
• -i, --install List of packages to install (via pip).
• -e, --editable List of packages/local package paths to install in editable mode (-e).
• --name Name of the virtual environment folder (default: .venv).
• --version-suffix Append Python major/minor version to the venv folder name.

Tools

In addition to the main features, also some useful tools that were written for the functionality of this package are available.

Logging tools

• LoggerFormatter provides a formatter that is a subclass of the standard library's logging.Formatter. The logger messages will be color coded and start with [Error], [Warning], [Info] depending on the message type.
• logged_subprocess_run provides a wrapper around subprocess.run where the output feed of the process is streamed live to the given logger.

To use these features and understand their parameters, run:

from pkgcreator.logging_tools import LoggerFormatter, logged_subprocess_run

help(LoggerFormatter)
help(logged_subprocess_run)

CLI tools

• ConsistentFormatter provides an argparse.HelpFormatter that aims at a consistent appearance. It enforces capitalization and periods where needed.
• generate_parser_template generates a template Python function that consistently creates an argparse.Argparser that is either a standalone or a subparser.

To use these features and understand their parameters, run:

from pkgcreator.cli_tools import ConsistentFormatter, generate_parser_template

help(ConsistentFormatter)
help(generate_parser_template)

Requirements and Dependencies

Following requirements must be satisfied:

• Python 3.10+ (developed with Python 3.13, tested with Python 3.10+, lower version are not working due to the use of match ... case and Union)

Following optional dependencies are recommended, but not required:

• requests library (for Python GitHub downloader and license selection/download)
• Git (for sparse-checkout Bash script or if you want to initialise a Git repository when creating a Python package)

To install Python dependencies you may either use

pip install DEPENDENCY

or directly specify that you want to install all optional dependencies when installing this package with:

pip install pkgcreator[full]