update to python3.7

lib/python3.7/wsgiref/__init__.py

@@ -0,0 +1,23 @@
+"""wsgiref -- a WSGI (PEP 3333) Reference Library
+
+Current Contents:
+
+* util -- Miscellaneous useful functions and wrappers
+
+* headers -- Manage response headers
+
+* handlers -- base classes for server/gateway implementations
+
+* simple_server -- a simple BaseHTTPServer that supports WSGI
+
+* validate -- validation wrapper that sits between an app and a server
+  to detect errors in either
+
+To-Do:
+
+* cgi_gateway -- Run WSGI apps under CGI (pending a deployment standard)
+
+* cgi_wrapper -- Run CGI apps under WSGI
+
+* router -- a simple middleware component that handles URL traversal
+"""