electrum

commit 2a604b1676680859d5ddb84f132ec39a6c1b5c80
parent c37d08cec9c5c9fbc473151b2b77343cefeae7c9
Author: SomberNight <somber.night@protonmail.com>
Date:   Sat, 12 Oct 2019 00:05:38 +0200

lnonion: get_failure_msg_from_onion_error might raise in python 3.7

this used to work in py3.6 but raises in py3.7 :(
(see https://bugs.python.org/issue34536)

Diffstat:
M
electrum/lnonion.py
 | 
11
++++-------

1 file changed, 4 insertions(+), 7 deletions(-)
diff --git a/electrum/lnonion.py b/electrum/lnonion.py
@@ -348,7 +348,10 @@ def get_failure_msg_from_onion_error(decrypted_error_packet: bytes) -> OnionRout
     failure_msg = decrypted_error_packet[34:34+failure_len]
     # create failure message object
     failure_code = int.from_bytes(failure_msg[:2], byteorder='big')
-    failure_code = OnionFailureCode(failure_code)
+    try:
+        failure_code = OnionFailureCode(failure_code)
+    except ValueError:
+        pass  # uknown failure code
     failure_data = failure_msg[2:]
     return OnionRoutingFailureMessage(failure_code, failure_data)
 
@@ -387,12 +390,6 @@ class OnionFailureCode(IntEnum):
     CHANNEL_DISABLED =                        UPDATE | 20
     EXPIRY_TOO_FAR =                          21
 
-    @classmethod
-    def _missing_(cls, value: int) -> int:
-        # note that for unknown error codes, we return an int,
-        # not an instance of cls
-        return value
-
 
 # don't use these elsewhere, the names are ambiguous without context
 del BADONION; del PERM; del NODE; del UPDATE