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What is the output of the code:mylist =[0, 5, 2, 0, 'codetantra', '', []]print(list(filter(bool, mylist)))Options[5, 2, 'codetantra'][0, 5, 2, 0, ‘codetantra’, ”, []][0, 0, ]Error

Question

What is the output of the code:mylist =[0, 5, 2, 0, 'codetantra', '', []]print(list(filter(bool, mylist)))Options[5, 2, 'codetantra'][0, 5, 2, 0, ‘codetantra’, ”, []][0, 0, ]Error

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Solution

The output of the code will be [5, 2, 'codetantra'].

Here's the step by step explanation:

  1. The filter() function in Python takes in a function and a list as arguments. This method constructs an iterator from elements of the iterable for which the function returns true.

  2. In this case, the function used is bool(). The bool() function converts a value to Boolean (True or False) using the standard truth testing procedure.

  3. The bool() function is being applied to each element of the list. If the element's boolean value is True, it's included in the new list. If it's False, it's excluded.

  4. In Python, some values are considered False in a boolean context. These include, but are not limited to, empty sequences (like empty strings, lists, and tuples), zero, and None.

  5. So, in the list [0, 5, 2, 0, 'codetantra', '', []], the elements 0, '', and [] are considered False.

  6. Therefore, when we filter the list with the bool() function, these elements are excluded, leaving us with [5, 2, 'codetantra'].

This problem has been solved

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