how to get key from value python 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 get key of a particular value in dictionary python using index
mydict = {'george': 16, 'amber': 19}
print(list(mydict.keys())[list(mydict.values()).index(16)]) # Prints george
Example 3: 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 4: how to get the value of key in python
print(dict["key"])
Example 5: 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
Example 6: find key by value python
print(list(d.keys())[list(d.values()).index(990)])