From bc14e05998f38c3443a04372152d58c55f55239a Mon Sep 17 00:00:00 2001
From: Neil Booth <kyuupichan@gmail.com>
Date: Wed, 10 Feb 2016 23:53:14 +0900
Subject: [PATCH] ProtocolMixin: make expand_path static

---
 trezorlib/client.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/trezorlib/client.py b/trezorlib/client.py
index bf41f026d..75f01eaf9 100644
--- a/trezorlib/client.py
+++ b/trezorlib/client.py
@@ -365,7 +365,8 @@ class ProtocolMixin(object):
         # Convert minus signs to uint32 with flag
         return [ int(abs(x) | self.PRIME_DERIVATION_FLAG) if x < 0 else x for x in n ]
 
-    def expand_path(self, n):
+    @staticmethod
+    def expand_path(n):
         # Convert string of bip32 path to list of uint32 integers with prime flags
         # 0/-1/1' -> [0, 0x80000001, 0x80000001]
         if not n:
@@ -384,7 +385,7 @@ class ProtocolMixin(object):
             x = abs(int(x))
 
             if prime:
-                x |= self.PRIME_DERIVATION_FLAG
+                x |= ProtocolMixin.PRIME_DERIVATION_FLAG
 
             path.append(x)