How can I merge dictionaries in Python 3.9?

How can I merge dictionaries in Python 3.9?

In Python 3.9, you can merge dictionaries using the | operator. For example, dict1 | dict2 merges dict1 and dict2.

What if there are overlapping keys?

If there are overlapping keys, the values from the second dictionary will overwrite those in the first. For example, {'a': 1} | {'a': 2} results in {'a': 2}.

Can I use the update() method instead?

Yes, you can use the update() method, which modifies the first dictionary in place. For example, dict1.update(dict2) will update dict1 with values from dict2.

Are there any other ways to merge dictionaries?

Yes, you can also use dictionary comprehensions or the ** unpacking operator in earlier versions of Python.