Number to String Type Conversion in Python

This is another article on data type conversion. If you haven’t done so yet, make sure to read my previous articles as well:

– String to Number Conversions

– Converting String Representations of Binary, Octal and Hexadecimal Integers

Today we’ll learn how to convert numbers to strings.

Here’s the video version of this article:

Sometimes we need to use a number like a string. For example we can’t concatenate strings with numbers:

 >>> age = 32
 >>> price = 30.75
 >>> print("The " + age + "-year old woman paid $" + price + " for her hat.")
 Traceback (most recent call last):
   File "<stdin>", line 1, in <module>
 TypeError: must be str, not int 

What we have to do is cast the numbers to strings using the str function:

 >>> print("The " + str(age) + "-year old woman paid $" + str(price) + " for her hat.")
 The 32-year old woman paid $30.75 for her hat.