How can I remove a key from a nested dictionary in Python?

How can I remove a key from a nested dictionary in Python?

You can use a recursive function to traverse the nested dictionary and remove the key. Would you like an example?

Yes, please provide an example.

Here's a simple example:

def remove_key(d, key):
    if key in d:
        del d[key]
    for k, v in list(d.items()):
        if isinstance(v, dict):
            remove_key(v, key)

nested_dict = {'a': 1, 'b': {'c': 2, 'd': {'e': 3}}}
remove_key(nested_dict, 'c')
print(nested_dict)  # Output: {'a': 1, 'b': {'d': {'e': 3}}}

What if the key appears multiple times in different levels?

The provided function will remove all instances of the key at any level in the nested dictionary.