From 483e2a1a6bfe848e74e39bdc7a5f38adb9c9516e Mon Sep 17 00:00:00 2001
From: Paul TREHIOU <nyanloutre@users.noreply.github.com>
Date: Tue, 2 Oct 2018 00:13:03 +0200
Subject: [PATCH] btchip: init at 0.1.28

electrum and electron-cash: add support for btchip library (#40816)
---
 .../misc/electron-cash/default.nix            |  1 +
 pkgs/applications/misc/electrum/default.nix   |  2 +-
 .../python-modules/btchip/default.nix         | 23 +++++++++++++++++++
 pkgs/top-level/python-packages.nix            |  2 ++
 4 files changed, 27 insertions(+), 1 deletion(-)
 create mode 100644 pkgs/development/python-modules/btchip/default.nix

diff --git a/pkgs/applications/misc/electron-cash/default.nix b/pkgs/applications/misc/electron-cash/default.nix
index 66a423238b3..8105f4d61bd 100644
--- a/pkgs/applications/misc/electron-cash/default.nix
+++ b/pkgs/applications/misc/electron-cash/default.nix
@@ -34,6 +34,7 @@ python3Packages.buildPythonApplication rec {
     # plugins
     keepkey
     trezor
+    btchip
   ];
 
   nativeBuildInputs = [ makeWrapper ];
diff --git a/pkgs/applications/misc/electrum/default.nix b/pkgs/applications/misc/electrum/default.nix
index 95754579c48..537627a10d2 100644
--- a/pkgs/applications/misc/electrum/default.nix
+++ b/pkgs/applications/misc/electrum/default.nix
@@ -41,10 +41,10 @@ python3Packages.buildPythonApplication rec {
     # plugins
     keepkey
     trezor
+    btchip
 
     # TODO plugins
     # amodem
-    # btchip
   ];
 
   preBuild = ''
diff --git a/pkgs/development/python-modules/btchip/default.nix b/pkgs/development/python-modules/btchip/default.nix
new file mode 100644
index 00000000000..6e2e703dd56
--- /dev/null
+++ b/pkgs/development/python-modules/btchip/default.nix
@@ -0,0 +1,23 @@
+{ stdenv, buildPythonPackage, fetchPypi, hidapi, pyscard, ecdsa }:
+
+buildPythonPackage rec {
+  pname = "btchip-python";
+  version = "0.1.28";
+  name = "${pname}-${version}";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "10yxwlsr99gby338rsnczkfigcy36fiajpkr6f44438qlvbx02fs";
+  };
+
+  propagatedBuildInputs = [ hidapi pyscard ecdsa ];
+
+  # tests requires hardware
+  doCheck = false;
+
+  meta = with stdenv.lib; {
+    description = "Python communication library for Ledger Hardware Wallet products";
+    homepage = "https://github.com/LedgerHQ/btchip-python";
+    license = licenses.asl20;
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 2da2892f9be..c8cb678618f 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -250,6 +250,8 @@ in {
 
   dependency-injector = callPackage ../development/python-modules/dependency-injector { };
 
+  btchip = callPackage ../development/python-modules/btchip { };
+
   dbf = callPackage ../development/python-modules/dbf { };
 
   dbfread = callPackage ../development/python-modules/dbfread { };