Developers¶

If you want to work on the code, here are a few things worth knowing.

Source code¶

The main functionality is found in src/dummy_net.py and the corresponding unit test is in test/test_dummynet.py if you want to play/modify/fix the code this would, in most cases, be the place to start.

Developer Notes¶

We try to make our projects as independent as possible of a local system setup. For example with our native code (C/C++) we compile as much as possible from source, since this makes us independent of what is currently installed (libraries etc.) on a specific machine.

To “fetch” sources we use Waf (https://waf.io/) augmented with dependency resolution capabilities: https://github.com/steinwurf/waf

The goal is to enable a work-flow where running:

./waf configure
./waf build --run_tests

Configures, builds and runs any available tests for a given project, such that you as a developer can start hacking at the code.

For Python project this is a bit unconventional, but we think it works well.

Tests¶

The tests will run automatically by passing --run_tests to waf:

./waf --run_tests

This follows what seems to be “best practice” advise, namely to install the package in editable mode in a virtualenv.

Notes¶

Why use an src folder (https://hynek.me/articles/testing-packaging/). tl;dr you should run your tests in the same environment as your users would run your code. So by placing the source files in a non-importable folder you avoid accidentally having access to resources not added to the Python package your users will install…
Python packaging guide: https://packaging.python.org/distributing/

Release new version¶

Edit NEWS.rst and wscript (set correct VERSION)
Run
```
./waf upload
```

Only developers with access to the the PyPi repository can do this.

Dummynet