fix

Author: Mryan2005

setup.py

@@ -19,7 +19,7 @@
     ],
     classifiers=[
         'Programming Language :: Python :: 3',
-        'License-Expression: MIT AND (Apache-2.0 OR BSD-2-clause)',
+        'License-Expression :: MIT AND (Apache-2.0 OR BSD-2-clause)',
         'Operating System :: All OS',
     ],
     python_requires='>=3.6',