fix download (aggiunta di nuove librerie da Alfa)

lib/future/backports/test/__init__.py

@@ -0,0 +1,9 @@
+"""
+test package backported for python-future.
+
+Its primary purpose is to allow use of "import test.support" for running
+the Python standard library unit tests using the new Python 3 stdlib
+import location.
+
+Python 3 renamed test.test_support to test.support.
+"""