how to update python

1sudo apt-get update && sudo apt-get upgrade
2sudo apt-get install python3.7

1The explanation would be too long for a grepper answer.
2So here is a link to a stackoverflow question:
3
4https://stackoverflow.com/questions/45137395/how-do-i-upgrade-the-python-installation-in-windows-10

1z = {1: 'One', 2: 'Two'}
2x = {0: 'zero', 1: 'one'}
3x.update(z) # adds anything new to the dict
4print(x)
5{0: 'zero', 1: 'One', 2: 'Two'}