data: added manual tests for python sourcegroup

testing/project_setup/python_empty/data/src/bar.py

@@ -0,0 +1,4 @@
+import baz
+
+class Bar(baz.Baz):
+	pass

testing/project_setup/python_empty/data/src/baz.py

@@ -0,0 +1,2 @@
+class Baz:
+	pass

testing/project_setup/python_empty/data/src/foo.py

@@ -0,0 +1,4 @@
+import baz
+
+class Foo(baz.Baz):
+	pass

testing/project_setup/python_empty/data/src/main.py

@@ -0,0 +1,6 @@
+import foo
+import bar
+
+def test():
+	foo = foo.Foo()
+	bar = bar.Bar()