Answers for "get value by key in dictionary python"

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))

find value in dictionary python

k = {1:10,2:20,3:30,4:40}
#idea : print([5,6,7,8][[12,15,47,45].index(15)])
b = list(k.keys())[list(k.values()).index(20)] #find index of 20 => return 2

how to get value from key dict in python

# Get a value from a dictionary in python from a key

# Create dictionary
dictionary = {1:"Bob", 2:"Alice", 3:"Jack"}

# Retrieve value from key 2
entry = dictionary[2]

# >>> entry
# Alice