From ab418335c2ca73dd438d53d013fe39fa1f37ecce Mon Sep 17 00:00:00 2001
From: Maximilian Bosch <maximilian@mbosch.me>
Date: Tue, 17 Jul 2018 23:15:57 +0200
Subject: [PATCH] pythonPackages.trezor: disable build

It seems as recent versions of `trezor` don't work with python 2.x:

```
/build/trezor-0.9.1/dist /build/trezor-0.9.1
Processing ./trezor-0.9.1-py2-none-any.whl
trezor requires Python '>=3.3' but the running Python is 2.7.15
builder for '/nix/store/aqyxki0ckanjk4r1f0an4kj1w4s3kk4f-python2.7-trezor-0.9.1.drv' failed with exit code 1
cannot build derivation '/nix/store/gp4smkzc9r87lzajs17jnq4rh2ayc5q0-python2.7-keepkey-4.0.0.drv': 1 dependencies couldn't be built
```
---
 pkgs/development/python-modules/trezor/default.nix | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/python-modules/trezor/default.nix b/pkgs/development/python-modules/trezor/default.nix
index 9a6a3c39eec1fe..0f96b100435a97 100644
--- a/pkgs/development/python-modules/trezor/default.nix
+++ b/pkgs/development/python-modules/trezor/default.nix
@@ -1,11 +1,13 @@
 { lib, fetchPypi, buildPythonPackage,
-  protobuf, hidapi, ecdsa, mnemonic, requests, pyblake2, click, libusb1, rlp
+  protobuf, hidapi, ecdsa, mnemonic, requests, pyblake2, click, libusb1, rlp, isPy3k
 }:
 
 buildPythonPackage rec {
   pname = "trezor";
   version = "0.9.1";
 
+  disabled = !isPy3k;
+
   src = fetchPypi {
     inherit pname version;
     sha256 = "a481191011bade98f1e9f1201e7c72a83945050657bbc90dc4ac32dc8b8b46a4";