First steps - VladimirRech/python GitHub Wiki
On Microsoft Windows to start using the interactive mode just open a command prompt and type:
python
Remember: you must install and set up you environment first.
This command start the interactive mode where you have to type the commands. To execute you enter a blank line.
Here you can see a code sample based on the official documentation with a little changing (I don't believe in a flat Earth :p).
>>> the_world_is_flat = False
>>> if the_world_is_flat:
... print("Be careful not to fall off!")
... else:
... print("Just keep rolling!")
...
Just keep rolling!
>>>