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In Python, functions begin with the key word "def" e.g.

def chatbot():

The code inside a function must always be indented inside it.

Indentation, in Python, means something. It indicates belonging to!

Using functions helps to write more organised code and it is far easier to manage, test and re-use parts in other programs. Have a look at the trinket below and see if you can

Try it yourself

a) count how many functions have been used

b) write your own function