Исправлена работа с pyopenssl-19.1

pym/calculate/contrib/cherrypy/wsgiserver/ssl_pyopenssl.py

@@ -244,7 +244,7 @@ class pyOpenSSLAdapter(wsgiserver.SSLAdapter):
         return ssl_environ
 
     def makefile(self, sock, mode='r', bufsize=-1):
-        if SSL and isinstance(sock, SSL.ConnectionType):
+        if SSL and isinstance(sock, SSL.Connection):
             timeout = sock.gettimeout()
             f = SSL_fileobject(sock, mode, bufsize)
             f.ssl_timeout = timeout