From 22376bede4eabd0e7b71cd69ff2796c2231fe4a3 Mon Sep 17 00:00:00 2001
From: matejcik <ja@matejcik.cz>
Date: Tue, 5 Mar 2019 16:28:17 +0100
Subject: [PATCH] protobuf: drop legacy CopyFrom method

---
 trezorlib/btc.py                      | 3 +--
 trezorlib/protobuf.py                 | 3 ---
 trezorlib/tests/support/ckd_public.py | 5 ++---
 3 files changed, 3 insertions(+), 8 deletions(-)

diff --git a/trezorlib/btc.py b/trezorlib/btc.py
index f22f05340c..c360528506 100644
--- a/trezorlib/btc.py
+++ b/trezorlib/btc.py
@@ -126,8 +126,7 @@ def sign_tx(client, coin_name, inputs, outputs, details=None, prev_txes=None):
     serialized_tx = b""
 
     def copy_tx_meta(tx):
-        tx_copy = messages.TransactionType()
-        tx_copy.CopyFrom(tx)
+        tx_copy = messages.TransactionType(**tx)
         # clear fields
         tx_copy.inputs_cnt = len(tx.inputs)
         tx_copy.inputs = []
diff --git a/trezorlib/protobuf.py b/trezorlib/protobuf.py
index 55172a7220..187a067867 100644
--- a/trezorlib/protobuf.py
+++ b/trezorlib/protobuf.py
@@ -165,9 +165,6 @@ class MessageType:
                 else:
                     setattr(self, fname, None)
 
-    def CopyFrom(self, obj):
-        self.__dict__ = obj.__dict__.copy()
-
     def ByteSize(self):
         data = BytesIO()
         dump_message(data, self)
diff --git a/trezorlib/tests/support/ckd_public.py b/trezorlib/tests/support/ckd_public.py
index 144dbe1c6b..b7a60624e8 100644
--- a/trezorlib/tests/support/ckd_public.py
+++ b/trezorlib/tests/support/ckd_public.py
@@ -71,11 +71,10 @@ def public_ckd(public_node, n):
     if not isinstance(n, list):
         raise ValueError("Parameter must be a list")
 
-    node = messages.HDNodeType()
-    node.CopyFrom(public_node)
+    node = messages.HDNodeType(**public_node)
 
     for i in n:
-        node.CopyFrom(get_subnode(node, i))
+        node = get_subnode(node, i)
 
     return node