0(1) element: null
1(2) element: PyAssignmentStatement
2(3) READ ACCESS: dict
3(4) WRITE ACCESS: d
4(5) element: PyTryExceptStatement
5(6,13,16) element: PyTryPart
6(7,13,16) element: PyAssignmentStatement
7(8,13,16) element: PySubscriptionExpression
8(9,13,16) READ ACCESS: d
9(10,13,16) WRITE ACCESS: v
10(11,16) element: PyElsePart
11(12,16) element: PyPrintStatement
12(16,18) READ ACCESS: v
13(14,16) element: PyExceptPart
14(15,16) READ ACCESS: KeyError
15(16,18) element: PyPrintStatement
16(17) element: PyFinallyPart
17(20) element: PyPrintStatement
18(19) element: PyFinallyPart
19(20) element: PyPrintStatement
20() element: null