nixpkgs/pkgs/development/interpreters/python/build-python-package.nix
Frederik Rietdijk 40851a4d26 Python: the pythonModule attribute
Python libraries or modules now have an attribute `pythonModule = interpreter;` to indicate
they provide Python modules for the specified `interpreter`.

The package set provides the following helper functions:

- hasPythonModule: Check whether a derivation provides a Python module.
- requiredPythonModules: Recurse into a list of Python modules, returning all Python modules that are required.
- makePythonPath: Create a PYTHONPATH from a list of Python modules.

Also included in this commit is:
- disabledIf: Helper function for disabling non-buildPythonPackage functions.
2017-11-23 15:11:02 +01:00

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Nix

/* This function provides a generic Python package builder. It is
intended to work with packages that use `distutils/setuptools'
(http://pypi.python.org/pypi/setuptools/), which represents a large
number of Python packages nowadays. */
{ lib
, python
, wrapPython
, setuptools
, unzip
, ensureNewerSourcesHook
, pythonModule
, namePrefix
, bootstrapped-pip
, flit
}:
let
setuptools-specific = import ./build-python-package-setuptools.nix { inherit lib python bootstrapped-pip; };
flit-specific = import ./build-python-package-flit.nix { inherit python flit; };
wheel-specific = import ./build-python-package-wheel.nix { };
common = import ./build-python-package-common.nix { inherit python bootstrapped-pip; };
mkPythonDerivation = import ./mk-python-derivation.nix {
inherit lib python wrapPython setuptools unzip ensureNewerSourcesHook pythonModule namePrefix;
};
in
{
# Several package formats are supported.
# "setuptools" : Install a common setuptools/distutils based package. This builds a wheel.
# "wheel" : Install from a pre-compiled wheel.
# "flit" : Install a flit package. This builds a wheel.
# "other" : Provide your own buildPhase and installPhase.
format ? "setuptools"
, ... } @ attrs:
let
formatspecific =
if format == "setuptools" then common (setuptools-specific attrs)
else if format == "flit" then common (flit-specific attrs)
else if format == "wheel" then common (wheel-specific attrs)
else if format == "other" then {}
else throw "Unsupported format ${format}";
in mkPythonDerivation ( attrs // formatspecific )