Development Tips and Tricks

deqr uses poetry for dependency management and as its build system. For development, it can be installed with the command poetry install, which will haul in the development dependencies because deqr has no standard dependencies. These dependencies are listed in pyproject.toml.

Alternately, pip install . also ought to work because Poetry exposes a PEP 517 build backend, but this will not also automatically the development dependencies. If not all development dependencies are desired, this is the easiest way to go about skipping them.

Since deqr is a Cython wrapper around some C libraries, poetry delegates compilation to Cython via a setuptools build extension, which is stored in build.py in the root of the repository. When adding or removing Cython-compiled modules, that file must be updated.