python3.pkgs.pip: 20.1.1 -> 20.2.4

Reproducible builds of pyproject projects using pip is resolved.

Fixes pypa/pip#7808
Fixes #81441

The more recent c409f69 caused trouble
with pyproject troubles and had to be reverted anyway.
#102222 (comment)

Revert "pythonPackages.pip: make reproducible (#102222)"

This reverts commit c409f69.

Revert "python3Packages.pip: allow setting reproducible temporary directory via NIX_PIP_INSTALL_TMPDIR"

This reverts commit aedbade.

pkgs/development/interpreters/python/hooks/pip-install-hook.sh

@@ -11,9 +11,7 @@ pipInstallPhase() {
     export PYTHONPATH="$out/@pythonSitePackages@:$PYTHONPATH"
 
     pushd dist || return 1
-    mkdir tmpbuild
-    @pythonInterpreter@ -m pip install ./*.whl --no-index --prefix="$out" --no-cache $pipInstallFlags
-    rm -rf tmpbuild
+    @pythonInterpreter@ -m pip install ./*.whl --no-index --prefix="$out" --no-cache $pipInstallFlags --build tmpbuild
     popd || return 1
 
     runHook postInstall

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

@@ -23,11 +23,6 @@ stdenv.mkDerivation rec {
   ];
 
   postPatch = ''
-    # Apply the pip reproducible patch
-    pushd "${pip.src.name}"
-      patch -p1 < ${../pip/reproducible.patch}
-    popd
-
     mkdir -p $out/bin
   '';
 

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

@@ -14,21 +14,17 @@
 
 buildPythonPackage rec {
   pname = "pip";
-  version = "20.1.1";
+  version = "20.2.4";
   format = "other";
 
   src = fetchFromGitHub {
     owner = "pypa";
     repo = pname;
     rev = version;
-    sha256 = "01wq01ysv0ijcrg8a4mj72zb8al15b8vw8g3ywhxq53kbsyhfxn4";
+    sha256 = "eMVV4ftgV71HLQsSeaOchYlfaJVgzNrwUynn3SA1/Do=";
     name = "${pname}-${version}-source";
   };
 
-  # Remove when solved https://github.com/NixOS/nixpkgs/issues/81441
-  # See also https://github.com/pypa/pip/issues/7808
-  patches = [ ./reproducible.patch ];
-
   nativeBuildInputs = [ bootstrapped-pip ];
 
   # pip detects that we already have bootstrapped_pip "installed", so we need