0(1) element: null
1(2) element: PyAssignmentStatement
2(3) WRITE ACCESS: tests
3(4) element: PyForStatement
4(5,17) READ ACCESS: tests
5(6) element: PyTargetExpression: t
6(7) WRITE ACCESS: t
7(8) element: PyTryExceptStatement
8(9,14) element: PyTryPart
9(10,14,5,17) element: PyForStatement
10(11,14) element: PyTargetExpression: t
11(12,14) WRITE ACCESS: t
12(13,14) element: PyPrintStatement
13(10,14,5,17) READ ACCESS: t
14(15) element: PyExceptPart
15(16) READ ACCESS: Exception
16(3) element: PyContinueStatement
17() element: null