Watch Python Think — One Step at a Time
Read the code first. Confirm that you understand it, then run the debugger and watch variables change through 10 loop rounds.
📄 Read This Code
Do not run yet. First identify the variables, operator and repeated statement.
1 number = 10
2 total = 0
3 step = 1
4
5 for current in range(1, number + 1):
6 total = total + current
7 print("Round", current, "Total", total)
8
9 print("Final Total:", total)
BEFORE RUNNING
VARIABLE
total
OPERATOR
+
LOOP
10 rounds
🐞 Debug Controller
Waiting for learner confirmation.
SPEED750ms
number
—
current
—
total
—
round
0 / 10
Loop Timeline
READYEach circle is one iteration.
CURRENT OPERATION
Waiting…
PYTHON CONSOLEnot started
Read the code, then confirm that you understand it.
✓ Loop Complete
The loop repeated 10 times. Each round used the current value and updated total.
1 + 2 + 3 + ... + 10 = 55