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Lesson 4.7 · Trace it

Trace: param scope

Python code6 rows to fill2 marks

Complete the trace table for this Python code. [2]

Line 1: def double(n):
Line 2, indented 1 level: n = n * 2
Line 3, indented 1 level: return n
Line 4:
Line 5: value = 3
Line 6: result = double(value)
Line 7: print(value)
Line 8: print(result)

Fill in one row each time a line changes value, n or result, or prints something. The table already has the right number of rows. In each row, write only what that line changes; you can leave the other cells empty or copy their values down. Write values the way Python shows them: 3 and 3.0 are different, and text goes in quotes. In the output column, write exactly what appears on screen, with no quotes around it.

Rowvaluenresultoutput
1
2
3
4
5
6