context.verify_mode = ssl.CERT_REQUIRED if verify else ssl.CERT_NONE
# OpenSSL 1.1.1+ Python 3.8+ keylog file
if hasattr(context, 'keylog_filename'):
- context.keylog_filename = os.environ.get('SSLKEYLOGFILE')
+ context.keylog_filename = os.environ.get('SSLKEYLOGFILE') or None
# Some servers may reject requests if ALPN extension is not sent. See:
# https://github.com/python/cpython/issues/85140