Convert Int to String in Python by Using Four Different Methods

Guide of Convert Int to String in Python – While programming in python, one often requires type conversions from one data type to another. This is because of the way a language handles different types of values and operations for them, but the interpreter itself might not understand exactly how to do this conversion automatically. It may attempt to convert certain types internally while running a program – but programmers will still want or need to take care of particular conversions or simply make sure they happen by explicitly defining these changes themselves. Typecasting in python is common but not easy. Today we’re going to look at four different methods of typecasting that can be used in python along with some examples and guidance on which kinds are best for certain situations when it comes down to converting integers into strings.

What is Integer in Python?

Integer in Python is a whole number, either positive or negative but without decimal points. Integers also have lengths up to the memory limit of a computer and therefore you may never run out of integers that you can use while programming in Python. By default, they are base 10, but you can define them or use them with different numbers bases like binary or octal. All integer literals or variables are the object int class in python. To identify their class naming use the below statement: type().

Example:

number = 40
print(type(a))
print(a)

Output:

<class 'int'>
40

What are Strings in Python?

In Python, strings are sequences of characters that are wrapped around either a single or double-quotes. You can also use triple quotes to create a multi-line string in Python. As strings are immutable in nature, they do not change throughout your program after they have been define once.

Example:

a = 'apple'
print(type(a))
print(a)

Output:

<class 'str'>
apple

Convert Int to String in Python

There is a total of four methods by which you can convert the integer data type into string in python. Let us study all these methods in detail below:

  1. Using str() function
  2. Using string formatting
  3. Using format() method
  4. Using F-strings

Convert Int to String Using str() function

str() is a built-in function in the Python programming language that converts an integer into a string. In addition to integers, the str() function can take any other Python data type as a parameter, convert it into the specified string and return it. Here is an example of using str() with both integer and float parameters.

Example:

a = 10
print(type(a))
 
# converting int into string
convert_a = str(a)
print(type(convert_a))

Output:

<class 'int'>
<class 'str'>

Convert Int to String Using string formatting

When using the ” “ operator, there is a need to put quotation marks around your string. In this case, string concatenation refers to joining two strings together with a ” “ operator in between them. This will combine both strings into one and will return a new string as opposed to changing the existing ones.

Example:

a = 10
print(type(a))
 
# converting int into string
convert_a = "% s" % a
print(type(convert_a))

Output:

<class 'int'>
<class 'str'>

Convert Int to String Using format() method

You can also use the “%s” operator just like the format method, to convert int into strings in python programming. In order for this method to work, you have to insert the {} placeholder in the empty string created. Later, you can call the format method on the empty string with the number that needs to be converted. To illustrate how this worked for me, I called a bunch of numbers through “format” example, similar to how I used it with word quotes above only with integers instead:

Example:

a = 10
print(type(a))
 
# converting int into string
convert_a = "{ }".format(a)
print(type(convert_a))

Output:

<class 'int'>
<class 'str'>

Convert Int to String Using F-strings

If you need to embed values or expressions in a string and you have grown accustomed to using a format() method, then an F-string can act as a replacement because it also allows values to be embedded in the string. Here is an example of what happens when F-strings are compared with “format()” output:

Example:

a = 10
print(type(a))
 
# converting int into string
convert_a = f'{a}'
print(type(convert_a))

Output:

<class 'int'>
<class 'str'>

Conclusion

You’ve just learned so much about the integer and string data types, as well as different ways to use them in Python. We have covered methods like using the str() method, “%s” operator, format() method, and F-strings to convert the int data type to string explicitly. While programming in python, there are situations where it is necessary to perform data type conversions – that is when you need to change something from one type into another one. Therefore, these methods will give effective and faster outputs for conversion of int to string data types.

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