From bd68950bbb804cf4695087a6e9e0f43966f681e4 Mon Sep 17 00:00:00 2001
From: Shahar Rosenberg <rose.shahar@gmail.com>
Date: Fri, 29 Mar 2019 16:52:57 +0300
Subject: [PATCH] add an option for ignoring wrong checksum

---
 pynmea2/nmea.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pynmea2/nmea.py b/pynmea2/nmea.py
index b9f5f2e..479ea1c 100644
--- a/pynmea2/nmea.py
+++ b/pynmea2/nmea.py
@@ -87,7 +87,7 @@ def checksum(nmea_str):
         return reduce(operator.xor, map(ord, nmea_str), 0)
 
     @staticmethod
-    def parse(line, check=False):
+    def parse(line, check=False, ignore_wrong_checksum=False):
         '''
         parse(line)
 
@@ -111,7 +111,7 @@ def parse(line, check=False):
         if checksum:
             cs1 = int(checksum, 16)
             cs2 = NMEASentence.checksum(nmea_str)
-            if cs1 != cs2:
+            if cs1 != cs2 and not ignore_wrong_checksum:
                 raise ChecksumError(
                     'checksum does not match: %02X != %02X' % (cs1, cs2), data)
         elif check: