Python: Formatting Strings

It's very important that you know how to format strings, in this lesson we will learn how to.

Firstly let's make the user input their name and age:

name = raw_input("What's your name?")
age = input("How old are you?")

Now we have these two, we should store them in a tuple:

TupleOne = (name, age)

Ok, so now we have the users name and age in a tuple..

What if we wanted to output their name and age in a string (for example "Hi Joe, How's it going at 99?")?
Well what we would do is we would format a string so that we can insert the variables into it.
The way to do this is to the the % sign, followed by a letter for the type of variable you want to replace it with (for example %s is for strings and %i is for integers):

String = "Hi %s, How's it going at %i?

So now we have a string with some holes in it.. The way to fill these holes is to combine the string and the tuple:

StringForPrint = String % TupleOne

In the above the % sign just means the string with holes in is "String", fill the holes using "TupleOne".

We can then "print(PrintString)" to see the results.



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