From 55a489ac9ea8d6c695b827211bbeb2fa8c121fff Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Robert=20Sch=C3=BCtz?= <dev@schuetz-co.de>
Date: Sat, 20 Mar 2021 20:14:42 +0100
Subject: [PATCH] pythonPackages.drf-yasg: does not depend on packaging

---
 pkgs/development/python-modules/drf-yasg/default.nix | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pkgs/development/python-modules/drf-yasg/default.nix b/pkgs/development/python-modules/drf-yasg/default.nix
index d69ece809bb..3935119971b 100644
--- a/pkgs/development/python-modules/drf-yasg/default.nix
+++ b/pkgs/development/python-modules/drf-yasg/default.nix
@@ -19,6 +19,11 @@ buildPythonPackage rec {
     sha256 = "d50f197c7f02545d0b736df88c6d5cf874f8fea2507ad85ad7de6ae5bf2d9e5a";
   };
 
+  postPatch = ''
+    # https://github.com/axnsan12/drf-yasg/pull/710
+    substituteInPlace requirements/base.txt --replace packaging ""
+  '';
+
   nativeBuildInputs = [
     setuptools_scm
   ];