Online Python Tutor

Source: https://cscircles.cemc.uwaterloo.ca/visualize Parent: https://cscircles.cemc.uwaterloo.ca/

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Write your Python 3 code here: \

Execute code using Python 3.3 Python 2.7 , hide frames of exited functions show frames of exited functions , inline primitives and nested objects render all objects on the heap , hide environment parent pointers show environment parent pointers , draw references using arrows use text labels for references , and show everything show only outputs .

Visualize Execution

Enter optional text input for the program to read with input():

Examples

Basic Examples:\ hello | happy | intro | filter | tokenize | insertion sort | list comprehension

Math-Related Fun:\ factorial | fibonacci | memoized fibonacci | square root | gcd | towers of hanoi

Higher-Order Functions:\ closure 1 | closure 2 | closure 3 | closure 4 | closure 5 \

list map | summation | lambda param | student torture

User Input:\ raw input

Object-Oriented Programming:\ OOP 1 | OOP 2 | OOP 3 | inheritance

Linked Lists:\ LL 1 | LL 2 | LL sum

Pointer Aliasing:\ aliasing 1 | aliasing 2 | aliasing 3 | aliasing 4 \ aliasing 5 | aliasing 6 | aliasing 7 | aliasing 8 | sumList

More Python Tricks:\ decorators | generators | gen expr | varargs | exceptions | for-else | nonlocal

Generate URL

To share this visualization, click the 'Generate URL' button above and share that URL. You can use it to share with others or report a bug.

For more information about this tool (including Python 2 usage), visit www.pythontutor.com.

Original tool © 2010-2013 Philip Guo. This version by CS Circles.