How do I use the update method in Python dictionaries?
The update() method in Python dictionaries allows you to update a dictionary with elements from another dictionary or from an iterable of key-value pairs.
Can you show me an example of how to use it?
Sure! Here's a simple example:
my_dict = {'a': 1, 'b': 2}
my_dict.update({'b': 3, 'c': 4})
print(my_dict)
This will output: {'a': 1, 'b': 3, 'c': 4}
.
What happens if the keys already exist?
If the keys already exist in the dictionary, the update() method will overwrite their values with the new ones provided.
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