Add file and memory buffer tests for Python

Client: py
diff --git a/lib/py/Makefile.am b/lib/py/Makefile.am
index de7afd3..69aa4e7 100644
--- a/lib/py/Makefile.am
+++ b/lib/py/Makefile.am
@@ -24,6 +24,7 @@
 	$(PYTHON3) setup.py build
 py3-test: py3-build
 	$(PYTHON3) test/thrift_json.py
+	$(PYTHON3) test/thrift_transport.py
 	$(PYTHON3) test/test_sslsocket.py
 	$(PYTHON3) test/thrift_TBinaryProtocol.py
 else
@@ -43,6 +44,7 @@
 
 check-local: all py3-test
 	$(PYTHON) test/thrift_json.py
+	$(PYTHON) test/thrift_transport.py
 	$(PYTHON) test/test_sslsocket.py
 	$(PYTHON) test/thrift_TBinaryProtocol.py