Answers for "get key of value 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))

python get dictionary keys

# To get all the keys of a dictionary use 'keys()'
newdict = {1:0, 2:0, 3:0}
newdict.keys()
# Output:
# dict_keys([1, 2, 3])

how to get the value of key in python

print(dict.get("key"))

get dictionary value in python

my_dict = {'a': 1, 'b': 2, 'c': 3}
# keys = list(item.keys())
# the upper commented code give the list of the keys.
keys = ['a', 'b', 'c', 'd'] # if some body give the list of the keys that wasn't match with my_dict

for key in keys:
    print(my_dict.get(key, 'default value when key not exist'))

"""output:
1
2
3
default value when key not exist
"""