python get key values from dict code example

Example 1: how to get the key for a value in a dictionary in python

# function to return key for any value 
def get_key(val): 
    for key, value in my_dict.items(): 
         if val == value: 
             return key 
  
    return "key doesn't exist"
  
# Driver Code 
  
my_dict ={"java":100, "python":112, "c":11} 
  
print(get_key(100)) 
print(get_key(11))

Example 2: how to print all elements of a dictionary in python

my_dict = {"one": 1,"two":2,"three":3,"four":4}

for item in my_dict:
    print("Key : {} , Value : {}".format(item,my_dict[item]))
    
# it will give this result >>>    Key : One , value : 1
#                                 Key : two , value : 2 ....