AttributeError: 'dict' object has no attribute 'iterkeys'

In Python 3, the method `iterkeys()` is no longer supported for dictionaries. Instead, you can use the `keys()` method to get a list of all the keys in the dictionary.

To fix this error, replace `iterkeys()` with `keys()` in your code. For example, if you have a dictionary `my_dict`, you can iterate over its keys using:

for key in my_dict.keys():
    print(key)

Alternatively, you can directly iterate over the dictionary itself, which will implicitly iterate over its keys:

for key in my_dict:
    print(key)