Python dictionary with keys having multiple inputs

Prerequisite : Python-Dictionary.

How to create a dictionary where a key is formed using inputs?
Let us consider an example where have an equation for three input variables, x, y and z. We want to store values of equation for different input triplets.

Example 1:

# Python code to demonstrate a dictionary 
# with multiple inputs in a key. 
import random as rn 
  
# creating an empty dictionary 
dict = {} 
  
# Insert first triplet in dictionary 
x, y, z = 10, 20, 30
dict[x, y, z] = x + y - z; 
  
# Insert second triplet in dictionary 
x, y, z = 5, 2, 4
dict[x, y, z] = x + y - z; 
  
# print the dictionary 
print(dict) 

Example 2: Let’s get access to the keys.
Let us consider a dictionary where longitude and latitude are the keys and the place to which they belong to is the value.

# dictionary containing longitude and latitude of places 
places = {("19.07'53.2", "72.54'51.0"):"Mumbai", \ 
          ("28.33'34.1", "77.06'16.6"):"Delhi"} 
  
print(places) 
print('\n') 
  
# Traversing dictionary with multi-keys and crearing 
# different lists from it 
lat = [] 
long = [] 
plc = [] 
for i in places: 
    lat.append(i[0]) 
    long.append(i[1]) 
    plc.append(places[i[0], i[1]]) 
  
print(lat) 
print(long) 
print(plc) 

Now that the keys(latitude, longitude) and values(place) are stored in a list, we can access it easily.

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