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(10,12) element: PyCallExpression: len
10(11) element: PyStatementList. Condition: len(s) == 1:true
11(3,15) element: PyContinueStatement
12(13) element: PyExpressionStatement
13(14) READ ACCESS: sys
14(4,15) element: PyCallExpression: sys.exit
15(16) element: PyRaiseStatement
16(17) READ ACCESS: Exception
17(18) element: PyCallExpression: Exception
18() element: null