#2834: Change re module semantics, so that str and bytes mixing is forbidden,
and str (unicode) patterns get full unicode matching by default. The re.ASCII
flag is also introduced to ask for ASCII matching instead.
diff --git a/Lib/py_compile.py b/Lib/py_compile.py
index 8ef3662..cce5ac1 100644
--- a/Lib/py_compile.py
+++ b/Lib/py_compile.py
@@ -86,7 +86,7 @@
line = f.readline()
if not line:
break
- m = re.match(r".*\bcoding:\s*(\S+)\b", line)
+ m = re.match(br".*\bcoding:\s*(\S+)\b", line)
if m:
return m.group(1).decode("ascii")
return default