How to check whether python is installed successfully?

Method to determine whether python is installed successfully:

1. Enter pythoncommand## in the cmd command line

#If you successfully enter the python interactive command line, the installation is successful.

If the installation is successful, you can see the version information and enter the programming mode, as shown below (the version I installed is python 2.7.13):

Input:

print 'hello world', press Enter, it can also be printed successfully.

If the following error is reported:

, the problem may be that the environment variable is not set.

2. Check the version number of python

If the version number of python is successfully displayed, the installation is successful.

Use the following command to check the python version

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