# Does Processing have a step by step executor?

**URL:** <https://discourse.processing.org/t/does-processing-have-a-step-by-step-executor/8613>\
**Category:** Processing\
**Created:** [February 22, 2019, 3:03am UTC](https://discourse.processing.org/t/does-processing-have-a-step-by-step-executor/8613 "2019-02-22T03:03:44Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![Livaarleen](https://avatars.discourse-cdn.com/v4/letter/l/7c8e57/32.png) [@Livaarleen](https://discourse.processing.org/u/Livaarleen)\
**Post date:** [February 22, 2019, 3:03am UTC](https://discourse.processing.org/t/does-processing-have-a-step-by-step-executor/8613/1 "2019-02-22T03:03:44Z")

</div>

Does processing have a mode in which code will be executed step-by-step, with an indication as to which line the executor is on, so that I can more easily debug? I am thinking of something similar to [pythontutor.com](http://pythontutor.com)

---

<div class="post-metadata">

**Author:** ![hotfooted](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/hotfooted/32/3670_2.png) [@hotfooted](https://discourse.processing.org/u/hotfooted)\
**Post date:** [February 22, 2019, 4:35am UTC](https://discourse.processing.org/t/does-processing-have-a-step-by-step-executor/8613/2 "2019-02-22T04:35:04Z")

</div>

debug on the menu. you can set break points and step as you want. is that what you mean?

---

<div class="post-metadata">

**Author:** ![jeremydouglass](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.processing.org/jeremydouglass/32/20_2.png) [@jeremydouglass](https://discourse.processing.org/u/jeremydouglass)\
**Post date:** [February 22, 2019, 9:21pm UTC](https://discourse.processing.org/t/does-processing-have-a-step-by-step-executor/8613/3 "2019-02-22T21:21:03Z")

</div>

In PDE the Step and Continue commands are available if you use the menu item Processing \> Debug \> Enable Debugger

Keep in mind that this is a Java debugger, and is available for Java mode – not (for example) Python mode.