python3Packages.priority: fix build (#57807)

pkgs/development/python-modules/priority/deadline.patch

@@ -0,0 +1,39 @@
+From 9d933c3c6535c1c63291e3d35f4ada9135d422df Mon Sep 17 00:00:00 2001
+From: Alyssa Ross <hi@alyssa.is>
+Date: Mon, 11 Mar 2019 02:08:43 +0000
+Subject: [PATCH] Allow test_period_of_repetition to be slow
+
+Recent versions of hypothesis default to a 200ms timeout, which wasn't
+enough for my Thinkpad X220 to run this test. I've increased the timeout
+for this single test to hopefully a reasonable amount for older
+hardware.
+
+(cherry picked from commit 752beb3a32b59f54168816da531c9d2a387f9715)
+---
+ test/test_priority.py | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/test/test_priority.py b/test/test_priority.py
+index c98a28d..013ce30 100644
+--- a/test/test_priority.py
++++ b/test/test_priority.py
+@@ -12,7 +12,7 @@ import itertools
+ 
+ import pytest
+ 
+-from hypothesis import given
++from hypothesis import given, settings
+ from hypothesis.strategies import (
+     integers, lists, tuples, sampled_from
+ )
+@@ -489,6 +489,7 @@ class TestPriorityTreeOutput(object):
+     fairness and equidistribution.
+     """
+     @given(STREAMS_AND_WEIGHTS)
++    @settings(deadline=None)
+     def test_period_of_repetition(self, streams_and_weights):
+         """
+         The period of repetition of a priority sequence is given by the sum of
+-- 
+2.19.2
+

pkgs/development/python-modules/priority/default.nix

@@ -1,4 +1,4 @@
-{ lib, buildPythonPackage, fetchPypi, pytest, hypothesis }:
+{ lib, buildPythonPackage, fetchPypi, fetchpatch, pytest, hypothesis }:
 
 buildPythonPackage rec {
   pname = "priority";
@@ -9,6 +9,11 @@ buildPythonPackage rec {
     sha256 = "1gpzn9k9zgks0iw5wdmad9b4dry8haiz2sbp6gycpjkzdld9dhbb";
   };
 
+  patches = [
+    # https://github.com/python-hyper/priority/pull/135
+    ./deadline.patch
+  ];
+
   checkInputs = [ pytest hypothesis ];
   checkPhase = ''
     PYTHONPATH="src:$PYTHONPATH" pytest