python find value of key code example

Example 1: python get value from dictionary

dict = {'color': 'blue', 'shape': 'square', 'perimeter':20}
dict.get('shape') #returns square

#You can also set a return value in case key doesn't exist (default is None)
dict.get('volume', 'The key was not found') #returns 'The key was not found'

Example 2: how to get the value of key in python

print(dict["key"])

Example 3: find key by value python

print(list(d.keys())[list(d.values()).index(990)])