From 2da548f856996a5c9bc56d28758d0f3ab49307c7 Mon Sep 17 00:00:00 2001
From: David Leung <david@davidslab.com>
Date: Tue, 7 May 2019 08:06:03 +0800
Subject: [PATCH] pythonPackages.serverlessrepo: fix build by pinning pyyaml at
 3.12

---
 .../python-modules/serverlessrepo/default.nix | 25 +++++++++++++------
 1 file changed, 18 insertions(+), 7 deletions(-)

diff --git a/pkgs/development/python-modules/serverlessrepo/default.nix b/pkgs/development/python-modules/serverlessrepo/default.nix
index d70abe1f95fd..7c89d9d1f8d9 100644
--- a/pkgs/development/python-modules/serverlessrepo/default.nix
+++ b/pkgs/development/python-modules/serverlessrepo/default.nix
@@ -1,13 +1,24 @@
 { lib
-, buildPythonPackage
-, fetchPypi
-, pytest
-, boto3
-, six
-, pyyaml
-, mock
+, python
 }:
 
+let
+  py = python.override {
+    packageOverrides = self: super: {
+      pyyaml = super.pyyaml.overridePythonAttrs (oldAttrs: rec {
+        version = "3.12";
+        src = oldAttrs.src.override {
+          inherit version;
+          sha256 = "592766c6303207a20efc445587778322d7f73b161bd994f227adaa341ba212ab";
+        };
+      });
+    };
+  };
+
+in
+
+with py.pkgs;
+
 buildPythonPackage rec {
   pname = "serverlessrepo";
   version = "0.1.8";