From 65aba6ed172b26ac97cf25c6fc123a7e58deca87 Mon Sep 17 00:00:00 2001
From: Ruben Maher <r@rkm.id.au>
Date: Fri, 1 Sep 2017 21:17:40 +0930
Subject: [PATCH] pythonPackages.semantic-version: use fetchPypi

In order to make it nicer to override when a specific version is required for
Python derivations.
---
 pkgs/top-level/python-packages.nix | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 04fd8d2ed11b..22823acee24a 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -20318,9 +20318,12 @@ in {
   };
 
   semantic-version = buildPythonPackage rec {
-    name = "semantic_version-2.4.2";
-    src = pkgs.fetchurl {
-      url = "mirror://pypi/s/semantic_version/${name}.tar.gz";
+    pname = "semantic_version";
+    version = "2.4.2";
+    name = "${pname}${version}";
+
+    src = self.fetchPypi {
+      inherit pname version;
       sha256 = "7e8b7fa74a3bc9b6e90b15b83b9bc2377c78eaeae3447516425f475d5d6932d2";
     };