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.get("key"))
Example 5: how to get the value of key in python
print(dict["key"])
Example 6: get all keys and values from dictionary python
#python 3
for k,v in dict.items():
print(k, v)