Python has builtin functions for common tasks from "summary" of Python For Dummies by Stef Maruch,Aahz Maruch
Python is designed to make your life easier. One way it does this is by providing you with a set of built-in functions for common tasks. These functions are ready to use right out of the box, so you don't have to reinvent the wheel every time you need to perform a common operation. For example, if you need to find the length of a string, you can use the len() function. This function takes a string as input and returns the number of characters in that string. So instead of writing a loop to count the characters yourself, you can simply call the len() function and get the result in one line of code. Similarly, Python provides a built-in function called max() that can be used to find the largest element in a list. This function takes a list as input and returns the maximum value in that list. Again, this saves you the trouble of writing your own loop to search for the maximum value. Another common task that Python simplifies for you is sorting a list. The sorted() function takes a list as input and returns a new list with the elements sorted in ascending order. This can be a time-consuming task to implement from scratch, but with the sorted() function, it's as easy as calling a single function. By providing these built-in functions for common tasks, Python allows you to focus on solving the problem at hand rather than getting bogged down in the details of implementation. This makes Python a powerful and efficient tool for writing clean, concise code that is easy to understand and maintain. So next time you find yourself faced with a common programming task, remember that Python probably has a built-in function to help you out.
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