Learning Python: The Ultimate Guide for Beginners to Coding with Python with Useful Tools

Chapter 5: User’s Input and Loop
The primary purpose why most programs are written is to solve a particular
problem.  In  order  to  solve  these  problems,  users  must  input  certain
information while interacting with the program. For instance, a player that
determines if someone is eligible to vote or not will require input from the
user.  Such  a  program  will  request  the  user  to  input  their  age,  which  will
enable the program to compare their value with the laid down condition of
the program before displaying the outcome.
In this chapter, you will learn the different ways of accepting input from the
users and how it works. Additionally, you will learn how to prompt users to
provide input by using the input() function. Furthermore, I will guide on the
way  to  keep  your  code  running  using  a  while  loop  pending  when  the
condition becomes false. If you can learn how to ask for input from users
and control how long a program should run, then you can effectively write
interactive programs that will solve many problems.
The simplest means of displaying output on the screen in Python is through
the “print” statement, which allows you to pass expression or zero separated
by  commas.  It  can  also  convert  expressions  passed  through  a  string  and
returns the results. For instance, consider the string below.
print “Learning is part of Life. Python is life”, “Does that sound good?”
When you run the program, your output will be:
Learning is part of Life. Python is life, Does that sound good?
Besides this, python provides two means of accepting keyboard input into
the  program.  You  can  either  use  the  raw_input  function  or  the  input()
function. Let us begin with the input function, as it is the most widely used
input function in Python.

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