How to install Python3.��ȫcdn9 in Ubuntu (Ubuntu 20.04 installation of Python)

Nowadays, many of our application software and programs need to support the Python language, some of which our programs must be compatible with, and some of which we need to support when debugging crawler scripts. In this article, Snail needs to install the Python 3.9 environment separately on Ubuntu 20.04, so I will record this process, and then I will no longer record it when debugging the software.

First, install the necessary packages

sudo apt updatesudo apt install build-essential zlib1g-dev libncurses5-dev libgdbm-dev libnss3-dev libssl-dev libreadline-dev libffi-dev libsqlite3-dev wget libbz2-dev

Second, download the latest software package

cd /optsudo wget https://www.python.org/ftp/python/3.9.0/Python-3.9.0.tgz

Here we download the latest 3.9 package version.

tar xzf Python-3.9.0.tgzcd Python-3.9.0sudo ./configure –enable-optimizations

Third, installation process

sudo make altinstall

Here we install it, and then we can check whether the version is python3.9.

Of course, the above is the official Python installation package that we use directly. We can also compile it directly on UbUNTU.

sudo apt updatesudo apt install software-properties-common

Install the required sources and then we add the package to the list.

sudo add-apt-repository ppa:deadsnakes/ppa

We need to press Enter during the process.

Then we install it directly

sudo apt install python3.9

Then we check the version.

python3.9 –version

We can choose server source installation or directly download the Python software package for installation.

Software-related articles about Python:

1. How to install Python 3.9 version on Ubuntu and install numpy and pandas libraries

2. Install Python3.8 from the official source code of Ubuntu18.04 image

3. CentOS8 official version system release and experience supports Python3.6 by default

4. CentOS7 system installs Python3.6.2 and coexists with Python2.7.5

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