From 599fa2754bdf68d7b23260f2a1ce661dcc408ee1 Mon Sep 17 00:00:00 2001
From: Jonathan Ringer <jonringer117@gmail.com>
Date: Fri, 20 Dec 2019 22:15:23 -0800
Subject: [PATCH] python3Packages.keyringer: add importlib-metadata dependency

---
 .../python-modules/keyring/default.nix         | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/pkgs/development/python-modules/keyring/default.nix b/pkgs/development/python-modules/keyring/default.nix
index 9e3ac1781caa..1694b01b75ae 100644
--- a/pkgs/development/python-modules/keyring/default.nix
+++ b/pkgs/development/python-modules/keyring/default.nix
@@ -1,6 +1,12 @@
-{ stdenv, buildPythonPackage, fetchPypi, isPy27
-, dbus-python, setuptools_scm, entrypoints, secretstorage
-, pytest, pytest-flake8 }:
+{ lib, stdenv, buildPythonPackage, fetchPypi, isPy27, pythonOlder
+, dbus-python
+, entrypoints
+, importlib-metadata
+, pytest
+, pytest-flake8
+, secretstorage
+, setuptools_scm
+}:
 
 buildPythonPackage rec {
   pname = "keyring";
@@ -16,12 +22,14 @@ buildPythonPackage rec {
 
   checkInputs = [ pytest pytest-flake8 ];
 
-  propagatedBuildInputs = [ dbus-python entrypoints ] ++ stdenv.lib.optional stdenv.isLinux secretstorage;
+  propagatedBuildInputs = [ dbus-python entrypoints ]
+  ++ lib.optional stdenv.isLinux secretstorage
+  ++ lib.optionals (pythonOlder "3.8") [ importlib-metadata ];
 
   # checks try to access a darwin path on linux
   doCheck = false;
 
-  meta = with stdenv.lib; {
+  meta = with lib; {
     description = "Store and access your passwords safely";
     homepage    = "https://pypi.python.org/pypi/keyring";
     license     = licenses.psfl;