modified: patch.py

patch.py

@@ -23,7 +23,7 @@ def replace_key(old,new,data,name=''):
     new_chunks = [bytes([new[i]]) for i in key_map]
     data =  replace_chunks(old_chunks, new_chunks, data,name)
     
-    if 'ARCH' in os.environ and  os.environ['ARCH'] == '-arm64':
+    if os.getenv('ARCH','') == '-arm64':
         old_chunks = [old[i:i+4] for i in range(0, len(old), 4)]
         new_chunks = [new[i:i+4] for i in range(0, len(new), 4)]
         old_bytes = old_chunks[4] + old_chunks[5] + old_chunks[2] + old_chunks[0] + old_chunks[1] + old_chunks[6] + old_chunks[7]