Reason for Error in Python
The error occurs because dict_keys objects do not support indexing. In Python, only sequences like lists, tuples, and strings can be indexed. Since dict_keys is not a sequence, attempting to use an index on it will result in a TypeError.
Reason 1: Attempting to the Index dict_keys Directly
my_dict = {'a': 1, 'b': 2, 'c': 3}
keys = my_dict.keys()
print(keys[0])
Output:
TypeError: 'dict_keys' object is not subscriptable
Reason 2: Using dict_keys in the Subscriptable Context
my_dict = {'x': 10, 'y': 20, 'z': 30}
keys = my_dict.keys()
for i in range(len(keys)):
print(keys[i])
Output:
TypeError: 'dict_keys' object is not subscriptable
How to Fix”dict_keys’ object is not subscriptable” in Python
The error message “dict_keys’ object is not subscriptable” in Python typically occurs when try to access an element of the dictionary using the square brackets[ ] but we are attempting to do so on a dict_keys object instead of the dictionary itself.