From 177ab0e01e4183bf47dc3805d148970409cce23d Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Sun, 5 Jan 2020 14:47:56 +0100
Subject: [PATCH] python-google_auth: build this package with on older version
 of cachetools

Fixes https://github.com/NixOS/nixpkgs/issues/76978.
---
 .../python-modules/cachetools/3.1.1.nix         | 17 +++++++++++++++++
 pkgs/top-level/python-packages.nix              |  3 ++-
 2 files changed, 19 insertions(+), 1 deletion(-)
 create mode 100644 pkgs/development/python-modules/cachetools/3.1.1.nix

diff --git a/pkgs/development/python-modules/cachetools/3.1.1.nix b/pkgs/development/python-modules/cachetools/3.1.1.nix
new file mode 100644
index 00000000000..51bf0e753a9
--- /dev/null
+++ b/pkgs/development/python-modules/cachetools/3.1.1.nix
@@ -0,0 +1,17 @@
+{ stdenv, buildPythonPackage, fetchPypi }:
+
+buildPythonPackage rec {
+  pname = "cachetools";
+  version = "3.1.1";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "8ea2d3ce97850f31e4a08b0e2b5e6c34997d7216a9d2c98e0f3978630d4da69a";
+  };
+
+  meta = with stdenv.lib; {
+    description = "Extensible memoizing collections and decorators";
+    homepage = "https://github.com/tkem/cachetools";
+    license = licenses.mit;
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 435a5538a56..8597ff7d3dc 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -3553,7 +3553,7 @@ in {
 
   google_apputils = callPackage ../development/python-modules/google_apputils { };
 
-  google_auth = callPackage ../development/python-modules/google_auth { };
+  google_auth = callPackage ../development/python-modules/google_auth { cachetools = self.cachetools_3_1_1; };
 
   google_cloud_asset = callPackage ../development/python-modules/google_cloud_asset { };
 
@@ -4374,6 +4374,7 @@ in {
   rfc3986 = callPackage ../development/python-modules/rfc3986 { };
 
   cachetools = callPackage ../development/python-modules/cachetools {};
+  cachetools_3_1_1 = callPackage ../development/python-modules/cachetools/3.1.1.nix {};
 
   cma = callPackage ../development/python-modules/cma { };