The copy() method in set class creates a shallow copy of a set object.
Syntax
set.copy()
Return Value
The copy() method returns a new set which is a shallow copy of existing set.
Example
lang1 = {"C", "C++", "Java", "Python"} print ("lang1: ", lang1, "id(lang1): ", id(lang1)) lang2 = lang1.copy() print ("lang2: ", lang2, "id(lang2): ", id(lang2)) lang1.add("PHP") print ("After updating lang1") print ("lang1: ", lang1, "id(lang1): ", id(lang1)) print ("lang2: ", lang2, "id(lang2): ", id(lang2))
Output
It will produce the following output −
lang1: {'Python', 'Java', 'C', 'C++'} id(lang1): 2451578196864
lang2: {'Python', 'Java', 'C', 'C++'} id(lang2): 2451578197312
After updating lang1
lang1: {'Python', 'C', 'C++', 'PHP', 'Java'} id(lang1): 2451578196864
lang2: {'Python', 'Java', 'C', 'C++'} id(lang2): 2451578197312
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