0(1) element: null
1(2) element: PyImportStatement
2(3) WRITE ACCESS: sys
3(4) element: PyForStatement
4(5) element: PyTargetExpression: s
5(6) WRITE ACCESS: s
6(7) element: PyIfStatement
7(8) READ ACCESS: len
8(9) READ ACCESS: s
9(10,11) element: PyCallExpression: len
10(14) element: null. Condition: len(s) == 1:false
11(12) element: null. Condition: len(s) == 1:true
12(13) element: PyStatementList
13(3,17) element: PyContinueStatement
14(15) element: PyExpressionStatement
15(16) READ ACCESS: sys
16(4,17) element: PyCallExpression: sys.exit
17(18) element: PyRaiseStatement
18(19) READ ACCESS: Exception
19(20) element: PyCallExpression: Exception
20(21) raise: PyRaiseStatement
21() element: null