What is the usage of python copy function

copy() The function is used to copy objects of variable data types such as lists, dictionaries, sets, and returns a new object instead of a reference to the original object. The usage of this function is as follows:

1. Copy list:

original_list = [1, 2, 3, 4, 5]
copied_list = original_list.copy()
print(copied_list)# [1, 2, 3, 4, 5]

2. Copy dictionary:

original_dict = {'a': 1, 'b': 2, 'c': 3}
copied_dict = original_dict.copy()
print(copied_dict)# {'a': 1, 'b': 2, 'c': 3}

3. Copy collection:

original_set = {1, 2, 3, 4, 5}
copied_set = original_set.copy()
print(copied_set)# {1, 2, 3, 4, 5}

Note: copy()The function only copies the object itself. If the elements contained within the object are variable (such as lists, dictionaries, etc.), the copied object and the original object will share these variables. Variable elements, so when modifying the variable elements, it will affect the original object and the copied object. If you need a completely independent copy, you can use the deepcopy() function.

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