Mac os проверить версию python

How to Check Python Version for Mac, Windows, and Linux

Web developers, engineers, and other software professionals need to know how to check Python version installed on their machines. Although the process is simple, some beginners may find it hard to figure out how to check Python version.

If you’re new to Python, we suggest taking a Python course to become familiar with the syntax and subtleties of the language.

In this article, we’ll guide you through a few easy steps to check Python version on your Mac, Windows, or Linux machine. All you need to begin is a computer with a Python release installed.

What is Python?

Python is a programming language used in web development, machine learning, and automation tasks. It is object-oriented, interpreted, and has a clear, simple syntax that makes it easy to learn and use.

It is one of the most popular and widely used languages, rivaling Javascript, Java, and C.

Python’s core library is extensive and freely distributed. These libraries and packages extend Python’s standard functionality.

The #1 Reason You Need to Know How to Check Python Version

There are many different versions of Python, and each version operates slightly differently with other dependencies and packages you have installed. Therefore, it’s crucial to ensure you have the correct version of Python installed to support the other dependencies in your project.

It is possible to have more than one version of Python installed on your computer. If you are a serious developer, you might simultaneously work on several applications requiring different Python versions.

For this reason, developers often run Python inside a virtual environment. In addition, it’s common to run a separate virtual environment for each Python project you work on.

A virtual environment is like a virtual machine that runs on your computer and keeps all the Python interpreters, versions, packages, dependencies, and scripts isolated from other Python projects on your computer.

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How to Check Your Python Version (Windows, macOS, Linux)

In this tutorial, you’ll learn how to check your Python version in Windows, macOS, and Linux. You’ll learn how to check the version of Python using the command line and within a Python script itself. You’ll learn how to get the version number of the interpreter that your scripts will use.

Knowing how to do this is an important skill for any Python developer. For example, it can be an important skill in order to better troubleshoot your code. If your interpreter is set to a different version than you’re expecting (say, Python 2 versus Python 3), being able to identify the version of the interpreter can help troubleshoot your problems.

By the end of this tutorial, you’ll have learned:

• How to check the Python version of your interpreter in Windows, Mac OS, and Linux
• How the check the Python version while running your script
• How to access the major, minor and micro versions of your Python version programmatically

How to Check Your Python Version

To check the version that your Python interpreter is running we can use a version command on the python command. Because accessing the command line prompt or terminal varies from system to system, this part of the tutorial is split across the different operating systems available to you.

Over the following sections, you’ll learn how to check your Python version using Windows 10, Windows 7, macOS, and Linux.

How to Check Your Python Version on Windows 10

In Windows 10, we can use the PowerShell to check the version of Python that we are running. In order to access the PowerShell, simply use the following steps:

Once the PowerShell is open you can access the Python version your interpreter is running by writing the commands shown below.

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Как проверить версию Python на Mac и Windows

В данном руководстве рассмотрим, как проверить версию Python на Mac и Windows.

Проверка версии Python на Mac

Чтобы проверить версию Python на Mac, выполните следующие действия:

1. Откройте терминал для Mac.
2. Введите команду Python –version.
3. Выполните ее, и она вернет установленную версию Python.

Проверка версии Python в Windows

Чтобы проверить версию Python в Windows:

1. Откройте приложение командной строки(CMD) для Windows.
2. Введите команду Python –version.
3. Выполните ее, и она вернет установленную версию Python.

Если вы введете то же самое в оболочке Windows или в командной строке, вы получите установленную версию Python.

Если версия Python не работает в Linux или Windows, вы также можете написать одну из следующих команд.

Установка Python, его обновление, установка пакетов и стороннего программного обеспечения, такого как Anaconda, а также установка и обновление pip — одни из наиболее часто используемых операций, которые пользователи выполняют в своей системе.

Узнать версию Python с помощью скрипта

Вы можете проверить версию Python с помощью скрипта, импортировав модуль sys и используя выражение sys.version, он возвращает установленную версию Python в вашей системе.

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How to Check Python Version in Linux, Mac, & Windows

Python is a popular programming language. Like many other programming languages, there can be several different versions organized by release date. Certain applications may require a specific version of Python.

In this tutorial, learn how to check the Python version on Windows, Linux, or macOS systems.

Access to a command-line/terminal window:

• Linux: Ctrl-Alt-T, Ctrl-Alt-F2
• Windows: Win+R > type powershell > Enter/OK
• MacOS: Finder > Applications > Utilities > Terminal

There are different versions of Python, but the two most popular ones are Python 2.7.x and Python 3.7.x. The x stands for the revision level and could change as new releases come out.

When looking at the version number, there are usually three digits to read:

While major releases are not fully compatible, minor releases generally are. Version 3.6.1 should be compatible with 3.7.1 for example. The final digit signifies the latest patches and updates.

Python 2.7 and 3.7 are different applications. Software that’s written in one version often will not work correctly in another version. When using Python, it is essential to know which version an application requires, and which version you have.

Python 2 will stop publishing security updates and patches after 2020. They extended the deadline because of the large number of developers using Python 2.7. Python 3 includes a 2 to 3 utility that helps translate Python 2 code into Python 3.

How to Check Python Version in Linux

Most modern Linux distributions come with Python pre-installed.

To check the version installed, open a terminal window and entering the following:

How to Check Python Version in Windows

Most out-of-the-box Windows installations do not come with Python pre-installed. However, it is always a good idea to check.

Open Windows Powershell, and enter the following:

If you have Python installed, it will report the version number.

Alternately, use the Windows Search function to see which version of Python you have:

Press the Windows key to start a search, then type Python. The system will return any results that match. Most likely a match will show something similar to:

This defines which major and minor revision (3.x or 2.x) you are using.

How to Check Python Version in MacOS

If using a MacOS, check the Python version by entering the following command in the terminal:

The system will report the version.

Note: In some cases, this will return a screen full of information. If that happens, just scan through the file locations for the word python with a number after it. That number is the version.

Checking a System with Multiple Versions of Python

Python2 and Python3 are different programs. Many programs upgrade from the older version to the newer one. However, Python 2.7.x installations can be run separately from the Python 3.7.x version on the same system.

Python 3 is not entirely backward compatible.

To check for Python 2.7.x:

To check the version of Python 3 software:

Most systems differentiate Python 2 as python and Python 3 as python3. If you do not have Python 2, your system may use the python command in place of python3 .

Note: Python does not have a built-in upgrade system. You’ll need to download the latest version and install it.

How to Check Python Version in Script

When writing an application, it is helpful to have the software check the version of Python before it runs to prevent crashes and incompatibilities.

Use the following code snippet to check for the correct version of Python:

if not sys.version_info.major == 3 and sys.version_info.minor >= 6: print("Python 3.6 or higher is required.") print("You are using Python <>.<>.".format(sys.version_info.major, sys.version_info.minor)) sys.exit(1)

When this script runs, it will test to see if Python 3.6 is installed on the system. If not, it will send a notification and displays the current Python version.

Note: One of the common issues in working with Python and datasets is missing data. Learn how to handle missing data in Python.

You should now have a solid understanding of how to check for the version of Python installed in several different operating systems. Python is a powerful programming language, thus it’s important to understand its different versions.

If you want to learn how to upgrade Python to a newer version on Wondows, macOs, and Linux, check our article how to upgrade Python to 3.9.

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