How to install Python 3.7 on Debian 9?

Python is one of the most popular programming languages ​​in the world and is a versatile programming language; it is simple and easy to learn, and we can use it to complete any operation we want, write small scripts, build games, develop websites, etc. wait. Python 3.7 is the latest major version of the Python language. The following article will introduce how to install the Python 3.7 version on the Debian system. I hope it will be helpful to everyone.

Building Python 3.7 on Debian is a relatively simple process and shouldn't take long.

1. First install the packages required to build the Python source:

$ sudo apt update
$ sudo apt install build-essential zlib1g-dev libncurses5-dev libgdbm-dev libnss3-dev libssl-dev libreadline-dev libffi-dev wget

2. Use the curl command from python Download the source code of the required version on the download page

The following command is to download the Python 3.7.3 version:

$ curl -O https://www.python.org/ftp/python/3.7.3/Python-3.7.3.tar.xz

3. After the download is completed , use the tar command to decompress:

$ tar -xf Python-3.7.3.tar.xz

4. Navigate to the python source directory and run the configure script

The configureThe script will perform a number of checks to ensure that all dependencies on the system are present.

$ cd Python-3.7.3
$ ./configure --enable-optimizations

Description: The --enable-optimizations option will optimize the Python binary by running multiple tests, which will make the build process slower.

5. Run make to start the build process:

$ make -j 8

In order to shorten the build time, you need to modify it according to the processor -j flag. If you don't know the core number of your processor, you can find it by typing nproc. This article takes 8 cores as an example, and uses the -j8 flag.

6. Install the python binary file

After the build is completed, run the following command as a user with sudo access to install the python binary file :

$ sudo make altinstall

Note: Do not use the standard make install as it will overwrite the default python3 system d binary.

7. Verification

At this point, Python 3.7 has been installed on the Debian system and can be used. We can enter the following command to verify it:

$ python3.7 --version

Output

Python 3.7.3

Recommended related video tutorials: "Python3 Tutorial"

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