Which of the following Python codes will give same output if(i) dict.pop("book")(ii) del dict["book"](iii) dict.update({"diary":1,"novel":5}) dict={"diary":1,"book":3,"novel":5}
Question
Which of the following Python codes will give same output if(i) dict.pop("book")(ii) del dict"book" dict.update({"diary":1,"novel":5}) dict={"diary":1,"book":3,"novel":5}
Solution
The Python codes (i) dict.pop("book") and (ii) del dict["book"] will give the same output. Both of these codes are used to remove an item from a dictionary in Python.
Here's how they work:
(i) dict.pop("book") - This code will remove the item with the key "book" from the dictionary and return its value. If the key is not found, it returns default value.
(ii) del dict["book"] - This code will also remove the item with the key "book" from the dictionary. However, it does not return the value of the removed item. If the key is not found, it raises a KeyError.
The code (iii) dict.update({"diary":1,"novel":5}) does not remove any item from the dictionary. Instead, it updates the value of the keys "diary" and "novel" in the dictionary. If the key is not found in the dictionary, it adds the key-value pair to the dictionary.
So, the first two codes will give the same output (i.e., they will both remove the item with the key "book" from the dictionary), while the third code will not.
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