From b3577a09e5d72170a0a9092e0bfe92bed2f10ba8 Mon Sep 17 00:00:00 2001
From: Dmitri Bogomolov <4glitch@gmail.com>
Date: Thu, 4 Nov 2021 15:33:54 +0200
Subject: [PATCH] Return None from addresses.encodeBase58() for negative number

---
 src/addresses.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/addresses.py b/src/addresses.py
index 560849df..abeeeb49 100644
--- a/src/addresses.py
+++ b/src/addresses.py
@@ -20,6 +20,8 @@ def encodeBase58(num, alphabet=ALPHABET):
       num: The number to encode
       alphabet: The alphabet to use for encoding
     """
+    if num < 0:
+        return None
     if num == 0:
         return alphabet[0]
     arr = []