pypy3 command not found

In this troubleshooting guide we learn how to fix pypy3 command not found error message

Introduction

When you run more command in linux terminal / console, you get the following error message

pypy3: command not found

or when using sudo you get the following error message

sudo: pypy3: command not found

In Ubuntu pypy3 is provided by pypy3 package.

pypy3 is:

PyPy is a fast, compliant alternative implementation of the Python language (3.x). It has several advantages and distinct features:

Speed: thanks to its Just-in-Time compiler (on x86), Python programs often run faster on PyPy.
Memory usage: large, memory-hungry Python programs might end up taking less space than they do in CPython.
Compatibility: PyPy is highly compatible with existing Python code. It supports ctypes and can run popular Python libraries like twisted and django.
Stackless: PyPy supports stackless mode on most platforms, providing micro-threads for massive concurrency.

This package contains the PyPy interpreter for Python 3.x.

To fix this problem, we can install more using the command below.

sudo apt-get -y install pypy3

This command might take some time to finish depending on your machine internet connection.

You can also use apt command to install pypy3.

sudo apt -y install pypy3

Or if you have aptitude installed you can use the following command.

sudo aptitude install pypy3

In this tutorial we learn how to fix pypy3 command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.