From 87d83a95c39c974648803806254ef689517e3ede Mon Sep 17 00:00:00 2001
From: Jens Hedegaard Nielsen <j.h.nielsen@nbi.ku.dk>
Date: Tue, 3 Jan 2017 10:11:01 +0100
Subject: [PATCH] Fix: Limit sip to 4.18.1

4.19 seems to segfault during setup.py develop
---
 requirements.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/requirements.txt b/requirements.txt
index ace996ad9542..a3c8d27ebee3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,5 +4,6 @@ matplotlib==1.5.3
 pyqtgraph==0.10.0
 PyVISA==1.8
 PyQt5==5.7
+sip==4.18.1
 QtPy==1.1.2
 h5py==2.6.0