What is the single expression in Python to combine two dictionaries?


In Python, you can combine two dictionaries into a single dictionary using the “update” method in a single expression. Here’s an example:

dict1 = {‘a’: 1, ‘b’: 2}
dict2 = {‘c’: 3, ‘d’: 4}

merged_dict = {**dict1, **dict2}
# or alternatively: merged_dict = dict1.copy(); merged_dict.update(dict2)

print(merged_dict) # Output: {‘a’: 1, ‘b’: 2, ‘c’: 3, ‘d’: 4}

In the above example, the two dictionaries dict1 and dict2 are merged into a new dictionary merged_dict using the double-asterisk syntax (**) to unpack the contents of each dictionary and combine them into a single expression. Alternatively, you could create a copy of one dictionary and then update it with the contents of the other using the “update” method.

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