What does python3 mean?

python3 is the Python3.0 version, often called Python 3000, or Py3k for short. This is a major upgrade compared to earlier versions of Python. In order not to bring too much burden, Python 3.0 was not designed with backward compatibility in mind.

Check the python version

We can use the following command to check the Python version we are using in the command window (Windows uses win R to bring up the cmd run box):

python -V

The execution result of the above command is as follows:

Python 3.3.2

You can also enter the interactive programming mode of Python and check the version:

Python 3.3.2 (v3.3.2:d047928ae3f6, May 16 2013, 00:03:43) [MSC v.1600 32 bit (Intel)] on win32
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