# What is curl? How do I uninstall processing?

**URL:** <https://discourse.processing.org/t/what-is-curl-how-do-i-uninstall-processing/18919>\
**Category:** Processing for Pi\
**Created:** [March 23, 2020, 1:21am UTC](https://discourse.processing.org/t/what-is-curl-how-do-i-uninstall-processing/18919 "2020-03-23T01:21:39Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![portis](https://avatars.discourse-cdn.com/v4/letter/p/977dab/32.png) [@portis](https://discourse.processing.org/u/portis)\
**Post date:** [March 23, 2020, 1:21am UTC](https://discourse.processing.org/t/what-is-curl-how-do-i-uninstall-processing/18919/1 "2020-03-23T01:21:39Z")

</div>

I installed processing on rapberry pi using the curl command.

> **[Download](https://pi.processing.org/download/)**
>
> Raspberry Pi Image This is the recommended, and easiest way to get started:
> Download Image (1.82GB) 
> Processing 3.4 • Released July 2018
> Follow Get Started for instructions how to install this image file.
> Install Processing onto existing...

curl [https://processing.org/download/install-arm.sh](https://processing.org/download/install-arm.sh) | sudo sh

1. How can I uninstall it?

Also, I try to compile some python programm but it gives some error:

from turtle import \*  
forward(100)

import \* does not work in this environment.

processing.app.SketchException: import \* does not work in this environment.  
at jycessing.mode.run.SketchRunner.convertPythonSketchError(SketchRunner.java:242)  
at jycessing.mode.run.SketchRunner.lambda$2(SketchRunner.java:119)  
at java.lang.Thread.run(Thread.java:748)

1. in upper right corner python mode is selected… why does it give a java error? And why does it give an error at all?