Mastering Python Scripting for System Administrators

Understanding lists

Python supports a data structure called list, which is a mutable and ordered sequence of elements. Each element in that list is called as item. Lists are defined by inserting values between square brackets [ ]. Each element of list is given a number, which we call as a position or index. The index starts from zero; that is, the first index is zero, the second index is 1, and so on. We can perform the following operations on lists: indexing, slicing, adding, multiplying, and checking for membership.

Python's built-in length function returns the length of that list. Python also has function for finding the largest and smallest item of list. Lists can be numbered lists, string lists, or mixed list.

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