forked from mirrors/nixpkgs
pythonPackages: new fetchers
Inspired by https://github.com/NixOS/nixpkgs/pull/22257. It is recommend to use fetchpypi and, when fetching a wheel, to pass `format = "wheel"` (typically you can just `inherit format;`). The hash type is fixed (for now) because this is the hash type PyPI uses.
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@ -37,9 +37,30 @@ let
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graphiteVersion = "0.9.15";
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fetchwheel = {pname, version, sha256, python ? "py2.py3", abi ? "none", platform ? "any"}:
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# Fetch a wheel. By default we fetch an universal wheel.
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# See https://www.python.org/dev/peps/pep-0427/#file-name-convention for details regarding the optional arguments.
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let
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url = "https://files.pythonhosted.org/packages/${python}/${builtins.substring 0 1 pname}/${pname}/${pname}-${version}-${python}-${abi}-${platform}.whl";
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in pkgs.fetchurl {inherit url sha256;};
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fetchtarball = {pname, version, sha256}:
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# Fetch a tarball.
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let
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url = "mirror://pypi/${builtins.substring 0 1 pname}/${pname}/${pname}-${version}.tar.gz";
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in pkgs.fetchurl {inherit url sha256;};
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fetchpypi = {format ? "setuptools", ... } @attrs:
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let
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fetcher = (if format == "wheel" then fetchwheel
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else if format == "setuptools" then fetchtarball
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else throw "Unsupported kind ${kind}");
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in fetcher (builtins.removeAttrs attrs ["format"]);
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in {
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inherit python bootstrapped-pip pythonAtLeast pythonOlder isPy26 isPy27 isPy33 isPy34 isPy35 isPy36 isPyPy isPy3k mkPythonDerivation buildPythonPackage buildPythonApplication;
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inherit fetchwheel fetchtarball fetchpypi;
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# helpers
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