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 - Count the Number of Keys in a Python Dictionary
pythonCopydict1 = {'a':1,'b':2,'c':3}
print(len(dict1.keys()))get number of key in dictionary python
#Call len(obj) with a dictionary as obj to count the number
#of key-value pairs in the dictionary.
a_dictionary = {"a": 1, "b": 2}
print(len(a_dictionary))
OUTPUT:
2Copyright © 2021 Codeinu
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