1. Ubuntu Upgrade Python 3
2. Ubuntu Install Python 3.4
3. Ubuntu Install Python 3
4. Install Python 3 Ubuntu 18
5. Ubuntu Install Python 3.6 Pip

• In this article I will show you how to install Python 3.3, the latest Python version available on Ubuntu 13.04 Raring Ringtail, Ubuntu 12.10 Quantal Quetzal and Ubuntu 12.04 Precise Pangolin.
• PostgreSQL is a powerful open source relational database frequently used to create, read, update and delete Python web application data. Psycopg2 is a PostgreSQL database driver that serves as a Python client for access to the PostgreSQL server. This post explains how to install PostgreSQL on Ubuntu 16.04 and run a few basic SQL queries within a Python program.
• If you are using Ubuntu 16.10 or newer, then you can easily install Python 3.6 with the following commands: $ sudo apt-get update $ sudo apt-get install python3.6 If you’re using another version of Ubuntu (e.g. The latest LTS release), we recommend using the deadsnakes PPA to install Python 3.6.

In this article I will show you how to install Python 3.3, the latest Python version available on Ubuntu 13.04 Raring Ringtail. $ sudo apt-get install python3.3. Installing Python 3.3 on Ubuntu 13.04: Because there is no PPA for Ubuntu 13.04, we’ll do an installation from sources. This document describes how to install Python 3.6 on Ubuntu Linux machines. To see which version of Python 3 you have installed, open a command prompt and run $ python3 --version If you are using Ubuntu 16.10 or newer, then you can easily install Python 3.6 with the following commands.

I am using Ubuntu 13.04. I am trying to learn Python and I want to learn the latest version that is Python 3.3. But whenever I type 'python --version' in my terminal it shows 'Python 2.7.4'. I have tried to install Python 3.3 using these commands -

I believe I have been successful but it still shows 'Python 2.7.4'. Then I tried this other command

But it still shows that I am using Python 2.7.4.

halfereddard.starkeddard.stark

3 Answers

If you're on Ubuntu, then I'm pretty sure python3 already comes installed. You can type python and hit tab in Bash. Python 3 should come up, no need to go through configure, make, make install.

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Edgar AroutiounianEdgar Aroutiounianroippiroippi

if you just want access to Python 3.3 (or any other version) you can download it at http://www.python.org/download/

I hope this helps,Jake Nixon

Not the answer you're looking for? Browse other questions tagged pythonpython-2.7python-3.xinstallationinstall or ask your own question.

Python is installed by default in Ubuntu and Linux Mint. The version which is installed could be a few versions behind the latest stable release. It is a good idea to list all installed versions on your machine and install the latest ones. The latest versions gives many advantages like:

• new features
• fixed issues
• new packages and dependencies

The following article is tested on Ubuntu 18 and Linux Mint 18. The examples are based on Linux Mint.

In this post:

Ubuntu Upgrade Python 3

List all installed python versions

If you want to see where and what python versions are installed on your machine you can do it by following commands. Check where python is installed:

and the result is:

Then you can list all python installations there by:

the result of this command is:

Another way to list python installations is by:

and the result is:

Alternatively you can see the alternatives with:

or

As you can see from both results we get python 2.7 and 3.5. The latest version of python 3 is 3.7 so if you want to installed it you can check next section. For more information about python 3.7 check here: Python 3.7 new features

Install latest python 3.7 on Ubuntu 18/Linux Mint 18

There are several ways of installing the latest python on Ubuntu:

Install by using PPA repository

There is a PPA which offers many versions of Python:
New Python Versions

This is the description of the repo:

Disclaimer: there's no guarantee of timely updates in case of security problems or other issues. If you want to use them in a security-or-otherwise-critical environment (say, on a production server), you do so at your own risk.

If you want to install 3.7 in this way you can do it by:

After the installation is better to not change the default version for the OS because you can meet many problems and unexpected behavior. Better is to change the version of your IDE or specific programs.

Install by downloading and building from source

First you will need to install some dependencies for the new python version:

After that you need to download the version which you want to install. In this case we download Python 3.7 source code from python.org. You can also download the file by visiting the site: python.org donwloads

Now extract the downloaded package(add sudo if needed).

Ubuntu Install Python 3.4

Now enter the newly extracted source directory, configure the build environment and install.

Note : If you use make altinstall instead of make install you will keep the default python version (otherwise you can face problems).
Step 4 – Check the Python Version

Check the python version.

Python version can be checked in several ways:

or for python 2:

for the newly installed 3.7 you can check it by:

List all python packages

Ubuntu Install Python 3

The new versions of python can be delivered with new packages and versions. So you can check the packages by using these commands:

result

Install Python 3 Ubuntu 18

If you are using conda or miniconda you can run:

Ubuntu Install Python 3.6 Pip

If you want to do the same with python code then you can execute: