From c12ef05bda5bf3d31918ee97d717cd3221926e8c Mon Sep 17 00:00:00 2001
From: Frederik Rietdijk <fridh@fridh.nl>
Date: Wed, 24 Mar 2021 15:43:26 +0100
Subject: [PATCH] sage: keep cypari2 at 2.1.1

---
 pkgs/applications/science/math/sage/default.nix | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/pkgs/applications/science/math/sage/default.nix b/pkgs/applications/science/math/sage/default.nix
index 8ef1f5189e5b9e..b985d56bb27d4c 100644
--- a/pkgs/applications/science/math/sage/default.nix
+++ b/pkgs/applications/science/math/sage/default.nix
@@ -11,6 +11,14 @@ let
 
   python3 = pkgs.python3.override {
     packageOverrides = self: super: {
+      cypari2 = super.cypari2.overridePythonAttrs (oldAttrs: rec {
+        version = "2.1.1";
+        src = oldAttrs.src.override {
+          inherit version;
+          sha256 = "df1ef62e771ec36e5a456f5fc8b51bc6745b70f0efdd0c7a30c3f0b5f1fb93db";
+        };
+      });
+
       # `sagelib`, i.e. all of sage except some wrappers and runtime dependencies
       sagelib = self.callPackage ./sagelib.nix {
         inherit flint arb;