How to install python in win7 system

How to install python on win7 system?

Download the Python installation package

Download address: https://www.python.org/downloads/

1. Select version

For version comparison, you can view the comparison of the two versions on the official website ：Should I use Python 2 or Python 3 for my development activity? The author is new to using it, and the choice is in line with the future. So choose the latest version.

The release date of the latest version 3.6.3 is 2017-10-03.

Enter the page and scroll down to find files, select the version suitable for the local system environment to download.

After clicking multiple times step by step to enter the web page, you may be confused. If you are a Windows user and your computer configuration also happens to use mainstream accessories, you can use a mouse. Point to "Downloads" and select the corresponding version in the pop-up tab to download by default

The download box pops up and enter the download directly

[If it is an Apple system MacOS, go to https://www.python.org/downloads/mac-osx/ and choose the version you like to download]

2. Installation

Go to next, either default or customized.

3. Set environment variables

Find Path as shown in the figure and edit

It can be seen that after installing Python, the system has automatically been added to the Path. If not, you need to add the Python path "C:\Program Files (x86)\Python36-32\" (note: this is when installing Python Selected installation directory) ps: Remember, the path is separated by a semicolon ";"!

4. Test

Do a test to check whether the installation is successful.

Open cmd, enter "Python" and press Enter. If the following picture appears, it means the installation has been successful.

Hello World! As written in many materials, enter print ‘Hello World!’.

Prompt error, this is the syntax before Python3.x. After 3.0, the syntax is changed to "print( 'Hello World!')"

Related recommendations: "Python Tutorial"

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