buildPythonPackage: install builds reproducibly

Without --build a temporary directory is created to unpack the wheel in. We now set a directory instead.
NixOS · Dec 13, 2016 · 2bcd41b · 2bcd41b
1 parent b1c20ad
commit 2bcd41b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/pkgs/development/interpreters/python/build-python-package-common.nix b/pkgs/development/interpreters/python/build-python-package-common.nix
@@ -24,7 +24,7 @@ attrs // {
     export PYTHONPATH="$out/${python.sitePackages}:$PYTHONPATH"
 
     pushd dist
-    ${bootstrapped-pip}/bin/pip install *.whl --no-index --prefix=$out --no-cache ${toString installFlags}
+    ${bootstrapped-pip}/bin/pip install *.whl --no-index --prefix=$out --no-cache ${toString installFlags} --build tmpbuild
     popd
 
     runHook postInstall