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Create, build, test, and publish Python projects and packages.

Project description

Hassle

Automate creating, building, testing, and publishing Python packages from the command line.

Installation

Install with:

pip install hassle

You should be able to type hassle help in your terminal and see a list of commands:

Additional setup:

Install git and add it to your PATH if it isn't already.
Some parts of this tool may require communicating with Github.
You will also need to register a pypi account if you want to publish packages to https://pypi.org with this tool.
Once you've created and validated an account, you will need to follow the directions to generate an api key.
Copy the key and in your home directory, create a '.pypirc' file if it doesn't already exist.
Edit the file so it contains the following (don't include the brackets around your api key):

Configuration

After installation and the above additional setup, it is a good idea to run the 'configure' command. This isn't required and a blank config will be generated whenever it is needed if it doesn't exist. This info, if provided, is used to populate a new project's 'pyproject.toml' file. Typing hassle help configure:

You can also view the current contents with the config command:

Generating New Projects

New projects are generated with the new command:

Most of these options pertain to prefilling the generated 'pyproject.toml' file.
As a simple example we'll create a new package called 'nyquil':

A new folder in your current working directory called 'nyquil' should now exist.
It should have the following structure:

Note: By default an MIT License is added to the project. Pass the -nl/--no_license flag to prevent this behavior.
If you open the 'pyproject.toml' file it should look like the following except for the 'project.authors' and 'project.urls' sections:

The package would do absolutely nothing, but with the generated files we do have the viable minimum to build an installable python package.

Running Tests

Hassle uses Pytest and Coverage to run tests.
When we invoke the hassle test command, we should see something like this (pretending we have added test functions to tests/test_nyquil.py):

Building

Building the package is as simple as using:

>hassle build

By default, the build command will:

  1. Run any tests in the tests folder (abandoning the build if any fail).
  2. Format source files with isort and black.
  3. Scan project import statements and add any missing packages to the pyproject dependencies field.
  4. Use pdoc to generate documentation (located in a created docs folder).
  5. Run python -m build . to generate the tar.gz and .whl files (located in a created dist folder).

Publishing

Assuming you've set up a PyPi account, generated the api key, and configured the '.pypirc' file as mentioned earlier, then you can publish the current version of your package by running:

>hassle publish

Updating

When the time comes to make changes to your package, the hassle update command makes it easy.
This command needs at least one argument according to the type of update: major, minor, or patch.
This argument tells Hassle how to increment the project version.
Hassle uses the semantic versioning standard, so, for example, if your current version is 1.2.3 then

>hassle update major bumps to 2.0.0,
>hassle update minor bumps to 1.3.0,
and
>hassle update patch bumps to 1.2.4.

By default, the update command will:

  1. Run any tests in the tests folder (abandoning the update if any fail).
  2. Increment the project version.
  3. Run the build process as outlined above (minus step 1.).
  4. Make a commit with the message chore: build {project_version}.
  5. Git tag using the tag prefix in your hassle_config.toml file and the new project version.
  6. Generate/update the CHANGELOG.md file using auto-changelog.
    (Normally auto-changelog overwrites the changelog file, but Hassle does some extra things so that any manual changes you make to the changelog are preserved).
  7. Git commit the changelog.
  8. Pull/push the current branch with the remote origin.
  9. Publish the updated package if the update command was run with the -p flag.
  10. Install the updated package if the update command was run with the -i flag.

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