PythonQwt-py3 command not found

Introduction

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

PythonQwt-py3: command not found

or when using sudo you get the following error message

sudo: PythonQwt-py3: command not found

Solutions to PythonQwt-py3: command not found

How To Fix PythonQwt-py3: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu PythonQwt-py3 is provided by python3-qwt package.

python3-qwt is:

The qwt package is a pure Python implementation of Qwt C++ library with the following limitations.

The following Qwt classes won’t be reimplemented in qwt because most powerful features already exist in guiqwt:

• QwtPlotZoomer
• QwtCounter
• QwtEventPattern
• QwtPicker
• QwtPlotPicker

QwtClipper is not implemented yet (and it will probably be very difficult or impossible to implement it in pure Python without performance issues). As a consequence, when zooming in a plot curve, the entire curve is still painted (in other words, when working with large amount of data, there is no performance gain when zooming in).

This is the Python 3 version of the package.

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

sudo apt-get -y install python3-qwt

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

You can also use apt command to install python3-qwt.

sudo apt -y install python3-qwt

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

sudo aptitude install python3-qwt

Summary

In this tutorial we learn how to fix PythonQwt-py3 command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.