nixpkgs/pkgs/development/python-modules/bootstrapped-pip/default.nix

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{ stdenv, python, fetchurl, makeWrapper, unzip }:
let
wheel_source = fetchurl {
url = "https://pypi.python.org/packages/py2.py3/w/wheel/wheel-0.29.0-py2.py3-none-any.whl";
sha256 = "ea8033fc9905804e652f75474d33410a07404c1a78dd3c949a66863bd1050ebd";
};
setuptools_source = fetchurl {
url = "https://files.pythonhosted.org/packages/b8/cb/b919f52dd81b4b2210d0c5529b6b629a4002e08d49a90183605d1181b10c/setuptools-30.2.0-py2.py3-none-any.whl";
sha256 = "b7e7b28d6a728ea38953d66e12ef400c3c153c523539f1b3997c5a42f3770ff1";
};
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argparse_source = fetchurl {
url = "https://pypi.python.org/packages/2.7/a/argparse/argparse-1.4.0-py2.py3-none-any.whl";
sha256 = "0533cr5w14da8wdb2q4py6aizvbvsdbk3sj7m1jx9lwznvnlf5n3";
};
in stdenv.mkDerivation rec {
name = "${python.libPrefix}-bootstrapped-pip-${version}";
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version = "9.0.1";
src = fetchurl {
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url = "https://files.pythonhosted.org/packages/b6/ac/7015eb97dc749283ffdec1c3a88ddb8ae03b8fad0f0e611408f196358da3/pip-9.0.1-py2.py3-none-any.whl";
sha256 = "690b762c0a8460c303c089d5d0be034fb15a5ea2b75bdf565f40421f542fefb0";
};
unpackPhase = ''
mkdir -p $out/${python.sitePackages}
unzip -d $out/${python.sitePackages} $src
unzip -d $out/${python.sitePackages} ${setuptools_source}
unzip -d $out/${python.sitePackages} ${wheel_source}
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'' + stdenv.lib.optionalString (python.isPy26 or false) ''
unzip -d $out/${python.sitePackages} ${argparse_source}
'';
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patchPhase = ''
mkdir -p $out/bin
'';
buildInputs = [ python makeWrapper unzip ];
installPhase = ''
# install pip binary
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echo '#!${python.interpreter}' > $out/bin/pip
echo 'import sys;from pip import main' >> $out/bin/pip
echo 'sys.exit(main())' >> $out/bin/pip
chmod +x $out/bin/pip
# wrap binaries with PYTHONPATH
for f in $out/bin/*; do
wrapProgram $f --prefix PYTHONPATH ":" $out/${python.sitePackages}/
done
'';
}