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-rw-r--r--src/devices/cpu/m6809/m6809make.py5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/devices/cpu/m6809/m6809make.py b/src/devices/cpu/m6809/m6809make.py
index 8838b960191..1f505d22197 100644
--- a/src/devices/cpu/m6809/m6809make.py
+++ b/src/devices/cpu/m6809/m6809make.py
@@ -2,8 +2,9 @@
# license:BSD-3-Clause
# copyright-holders:Olivier Galibert
-import sys
+import io
import re
+import sys
# Initial state
state = 1
@@ -16,7 +17,7 @@ def load_file(fname, lines):
if path != "":
path += '/'
try:
- f = open(fname, "rU")
+ f = io.open(fname, "r")
except Exception:
err = sys.exc_info()[1]
sys.stderr.write("Cannot read opcodes file %s [%s]\n" % (fname, err))