bpo-43651: PEP 597: Fix EncodingWarning in some tests (GH-25142)
* test__xxsubinterpreters
* test_builtin
* test_doctest
* test_exceptions
* test_opcodes
* test_support
* test_argparse
* test_baseexception
* test_bdb
* test_bool
* test_asdl_parser
diff --git a/Parser/asdl.py b/Parser/asdl.py
index 7f50948..e3e6c34 100644
--- a/Parser/asdl.py
+++ b/Parser/asdl.py
@@ -204,7 +204,7 @@ def check(mod):
def parse(filename):
"""Parse ASDL from the given file and return a Module node describing it."""
- with open(filename) as f:
+ with open(filename, encoding="utf-8") as f:
parser = ASDLParser()
return parser.parse(f.read())