CONTRIBUTING.md

Contributing

Thanks for wanting to contribute to view.py!

view.py is very new and is under heavy development. Whether you're completely new to GitHub contribution or an experienced developer, view.py has something you could help out with. If you want to jump right in, the issues tab has plenty of good starts.

If you're stuck, confused, or just don't know what to start with, our Discord is a great resource for questions regarding the internal mechanisms or anything related to view.py development. If you are actively working on an issue, you may ask for the contributor role (assuming it wasn't given to you already).

Getting Started

Assuming you have Git installed, simply clone the repo and install view.py locally (under a virtual environment):

$ git clone https://github.com/ZeroIntensity/view.py
$ cd view.py
$ python3 -m venv .venv
$ source .venv/bin/activate
$ pip install .

Congratulations, you have just started your development with view.py!

Workflow

First, you should create a new branch:

$ git branch my_cool_feature
$ git checkout my_cool_feature

All of your code should be contained on this branch.

Generally, a simple test.py file that starts a view app will be all you need. For example, if you made a change to the router, a way to test it would be:

from view import new_app

app = new_app()

@app.get("/", some_cool_feature_you_made='...')
async def index():
    return "Hello from view.py locally!"

app.run()

Note that you do need to pip install . to get your changes under the view module. However, waiting for pip every time can be a headache. Unless you're modifying the C API, you don't actually need it. Instead, you can test your code via just importing from src.view. A test.py file should not be inside of the src/view folder, but instead outside it (i.e. in the same directory as src).

For example, a simple test.py could look like:

# test.py
from src.view import new_app

app = new_app()

@app.get("/")
async def index():
    return "Hello from view.py locally!"

app.run()

Note: Import from view internally does not work when using src.view. Instead, your imports inside of view.py should look like from .foo import bar. For example, if you wanted to import view.routing.get from src/view/app.py, your import would look like from .routing import get

For debugging purposes, you're also going to want to disable fancy and hijack in the configuration:

[log]
fancy = false
hijack = false

These settings will stop view.py's fancy output from showing, as well as stopping the hijack of the uvicorn logger, and you'll get the raw uvicorn output.

Writing Tests

Note: You do need to pip install . to update the tests, as they import from view and not src.view.

View uses pytest for writing tests, as well as pytest-asyncio and pytest-memray. If you have any questions regarding test semantics, it's likely on their docs. The only thing you need to understand for writing tests is how to use the App.test API.

App.test is a method that lets you start a virtual server for testing responses. It works like so:

async def test_my_feature():
    app = new_app()

    @app.get("/")
    async def index():
        return "test"

    async with app.test() as test:
        res = await test.get("/")
        assert res.message == "test"

In the above code, a server would not be started, and instead just virtualized for testing purposes.

Updating the changelog

View follows Keep a Changelog, so nothing fancy is needed for updating changelogs. Don't put your code under a version, and instead just keep it under the Unreleased section.

Merging your code

Now that you're done writing your code and want to share it with the world of view.py, you can make a pull request on GitHub. After tests pass, your code will be merged.

Note: Your code will not be immediatly available on PyPI, as view.py doesn't create a new release automatically. When the release is ready (which might take time), your code will be available under the view.py package on PyPI.