From b2a8b7df59225edadb64e5376a4517ef44b34400 Mon Sep 17 00:00:00 2001
From: rnhmjoj <micheleguerinirocco@me.com>
Date: Tue, 30 May 2017 19:21:34 +0200
Subject: [PATCH] pythonPackages.keepkey: fix impossible constraint

---
 pkgs/top-level/python-packages.nix | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 3f427c604cf..163c83dfa7a 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -29674,6 +29674,11 @@ EOF
     # There are no actual tests: "ImportError: No module named tests"
     doCheck = false;
 
+    # remove impossible dependency constraint
+    postPatch = ''
+      sed -i -e 's/hidapi==/hidapi>=/' setup.py
+    '';
+
     meta = {
       description = "KeepKey Python client";
       homepage = https://github.com/keepkey/python-keepkey;