Update Lib/test/test_asyncio/utils.py

Co-authored-by: Petr Viktorin <[email protected]>

Author: kanavin

Lib/test/test_asyncio/utils.py

@@ -56,7 +56,8 @@ def data_file(*filename):
 ONLYKEY = data_file('certdata', 'ssl_key.pem')
 SIGNED_CERTFILE = data_file('certdata', 'keycert3.pem')
 SIGNING_CA = data_file('certdata', 'pycacert.pem')
-PEERCERT = eval(open(data_file('certdata', 'keycert3.pem.reference')).read())
+with open(data_file('certdata', 'keycert3.pem.reference')) as file:
+    PEERCERT = literal_eval(file.read())
 
 def simple_server_sslcontext():
     server_context = ssl.SSLContext(ssl.PROTOCOL_TLS_SERVER)