Printing integers in python

Mastering the Art of Printing Integers in Python: A Comprehensive Guide

Learn how to print integers in Python with ease and confidence. This comprehensive guide covers different methods and techniques for printing integers, including using the print() function, str.format(), and more.

Python is one of the most popular programming languages worldwide, thanks to its simplicity, readability, and versatility. Printing integers is one of the fundamental aspects of Python programming that every beginner must learn. In this guide, we will provide you with a comprehensive overview of how to print integers in Python, including different methods and techniques.

Using the print() function

The print() function is the simplest way to print integers in Python. You can pass the integer value as an argument to the function, and it will print the value to the console. Let’s take a look at a simple example:

As you can see, the print() function printed the integer value to the console. You can also print multiple integers using the print() function by separating them with commas:

number_1 = 42 number_2 = 69 print(number_1, number_2) 

Interpolating variables with str.format()

The str.format() method can be used to interpolate variables in a string. It is a more flexible way to format strings than using concatenation. Let’s take a look at an example:

age = 42 message = "My age is <>.".format(age) print(message) 

As you can see, the <> placeholder is replaced with the value of the age variable. You can also use multiple placeholders in a string:

name = "John" age = 42 message = "My name is <> and my age is <>.".format(name, age) print(message) 

My name is John and my age is 42. 

Print() input() | string, integer

This is first program written using python which demonstrate the use of print, input, string Duration: 13:43

Printing strings and integers together

To print a string and an integer together, you can use the print() function with a comma and the value as a string. Let’s take a look at an example:

name = "John" age = 42 print("My name is", name, "and my age is", age) 

My name is John and my age is 42 

As you can see, the print() function printed the string and integer values together on the same line.

Converting strings to integers

Sometimes, you may need to convert a string of digits into an integer number. You can use the int() function to achieve this. Let’s take a look at an example:

number_str = "42" number_int = int(number_str) print(number_int) 

As you can see, the int() function converted the string value “42” to the integer value 42. You can also convert string values containing negative numbers:

number_str = "-69" number_int = int(number_str) print(number_int) 

Formatting print integers in Python

There are various ways to format print integers in Python, including using a for loop or the * symbol. Let’s take a look at some examples:

Using a for loop

You can use a for loop to print a range of integers. Let’s take a look at an example:

As you can see, the for loop printed the integers from 0 to 9.

Using the * symbol

You can use the * symbol to print the same integer value multiple times. Let’s take a look at an example:

As you can see, the print() function printed the * symbol 42 times.

Other code examples

In Python as proof, How do you print a integer in python

x = 7 print('Number: ' + str(x)) #str() turns anything inside to a string which allows you to #add it to another/different string

In Python , for instance, print integer python code sample

Conclusion

Printing integers in Python is a fundamental aspect of programming. Using the print() function, str.format(), printing strings and integers together, converting strings to integers, and formatting print integers are all essential techniques to know. By following this comprehensive guide, you will be able to print integers in Python with ease and confidence.

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Printing integers in python

Last updated: Feb 20, 2023
Reading time · 5 min

# Table of Contents

# Print integer values in Python

Use the print() function to print an integer value, e.g. print(my_int) .

If the value is not of type integer, use the int() class to convert it to an integer and print the result, e.g. int(my_str) .

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my_int = 1234567 # ✅ print integer print(my_int) 

We used the print() function to print integer values.

The print function takes one or more objects and prints them to sys.stdout .

If you have an integer value, you can directly pass it to the print() function to print it.

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print(100) # 👉️ 100 print(200) # 👉️ 200 

# The print() function returns None

Note that the print() function returns None, so don’t try to store the result of calling print in a variable.

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my_int = 1234567 # ⛔️ BAD (print always returns None) result = print(my_int) print(result) # 👉️ None 

# Print an integer using a formatted string literal

You can also use a formatted string literal to print an integer.

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my_int = 1234567 result = f'The number is my_int>' print(result) # 👉️ The number is 1234567 

Formatted string literals (f-strings) let us include expressions inside of a string by prefixing the string with f .

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my_str = 'The number is:' my_int = 5000 result = f'my_str> my_int>' print(result) # 👉️ The number is: 5000 

Make sure to wrap expressions in curly braces — .

# Print a string and an integer together using addition (+) operator

To print a string and an integer together:

1. Use the str() class to convert the integer to a string.
2. Use the addition (+) operator to concatenate the two strings.
3. Use the print() function to print the result.

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my_int = 100 result = 'The number is ' + str(my_int) print(result) # 👉️ The number is 100 

We used the str() class to convert the integer to a string.

This is necessary because the values on the left and right-hand sides of the addition (+) operator need to be of compatible types.

If you try to use the addition (+) operator with a string and an integer, you’d get an error.

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my_int = 100 # ⛔️ TypeError result = 'The number is ' + my_int 

To get around this, we have to use the str() class to convert the integer to a string.

When using formatted string literals, we don’t have to explicitly convert the integer to a string because it’s done for us automatically.

# Print integer values using the int() class

If your integer is wrapped in a string, use the int() class to convert it to an integer before printing it.

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my_str = '1234567' my_int = int(my_str) print(my_int) # 👉️ 1234567 

We used the int() class to convert the integer to a string before printing it.

The int class returns an integer object constructed from the provided number or string argument.

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print(int('105')) # 👉️ 105 print(int('5000')) # 👉️ 5000 

The constructor returns 0 if no arguments are given.

# Print integer values using sys.stdout.write()

You can also use the stdout.write() method from the sys module to print integer values.

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import sys my_int = 123456 # 👇️ The number is 123456 sys.stdout.write('The number is ' + str(my_int)) 

The print() function is actually a thin wrapper around sys.stdout.write .

The print() function uses the sys.stdout.write method under the hood by default.

Notice that we used the str() class to convert the integer to a string before using the addition (+) operator.

This is necessary because the values on the left and right-hand sides of the addition (+) operator need to be of compatible types.

# Print a string and an integer together using commas

Alternatively, you can pass multiple, comma-separated arguments to the print() function.

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my_int = 100 # 👇️ The number is 100 print('The number is ', my_int, sep='') # 👇️ The number is 100 print('The number is ', my_int) 

We passed multiple, comma-separated arguments to the print() function to print a string and an integer.

By default, the sep argument is set to a space.

By setting the argument to an empty string, no extra whitespace is added between the values.

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print('a', 'b', 'c', sep="_") # 👉️ "a_b_c" print('a', 'b', 'c', sep="_", end=". ") # 👉️ "a_b_c. " 

The string we passed for the end keyword argument is inserted at the end of the string.

The end argument is set to a newline character ( \n ) by default.

# Print a string and an integer using str.format()

This is a two-step process:

1. Use the str.format() method to interpolate the variable in the string.
2. Use the print() function to print the result.

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my_int = 247 result = "The integer is <>".format(my_int) print(result) # 👉️ "The integer is 247" 

The str.format method performs string formatting operations.

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first = 'Bobby' last = 'Hadz' result = "His name is <> <>".format(first, last) print(result) # 👉️ "His name is Bobby Hadz" 

The string the method is called on can contain replacement fields specified using curly braces <> .

Make sure to provide exactly as many arguments to the format() method as you have replacement fields in the string.

The str.format() method takes care of automatically converting the integer to a string.

# Checking what type a variable stores

If you aren’t sure what type a variable stores, use the built-in type() class.

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my_int = 123 print(type(my_int)) # 👉️ print(isinstance(my_int, int)) # 👉️ True my_str = 'hello' print(type(my_str)) # 👉️ print(isinstance(my_str, str)) # 👉️ True 

The type class returns the type of an object.

The isinstance function returns True if the passed-in object is an instance or a subclass of the passed-in class.

If you need to convert a value to an integer and print the result, use the int() class.

# Additional Resources

You can learn more about the related topics by checking out the following tutorials:

• Print a Dictionary in Table format in Python
• How to Print on the Same Line in Python
• How to Print a Horizontal Line in Python
• How to print Boolean values in Python
• How to Print a List in Columns in Python
• Print a List without the Commas and Brackets in Python
• Print New Line after a Variable in Python
• How to Print the output of a Function in Python
• How to Print specific items in a List in Python
• Print specific key-value pairs of a dictionary in Python
• How to repeat a String N times in Python
• How to print Bold text in Python [5 simple Ways]
• Using nested Loops to print a Rectangle in Python
• How to print a Timestamp for Logging in Python

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How to print integers in Python

Let’s see how to use these 4 solutions in practice next.

1. Using the print() function

When you have integers in your code, you can print them using the print() function just like strings:

2. Using the f-string format when you have a string

When you need to print an integer alongside a string, you can use the f-string format to get them printed without any error.

You add a literal f before the string, then wrap the integer inside curly brackets <> as shown below:

The f-string format automatically converts the integer into a string, allowing the print function to work.

3. Using the int() function when you have a string of numbers

When you have a string of numbers, you can call the int() function to convert that value:

The variable my_number will be printed as an integer because you called the int() function inside print() .

4. Using the str() function when you need to print alongside a string

If you want to print the integer with some strings, you need to convert the integer value to a string so that Python can concatenate the values:

Without calling the str() function, you’ll get an error saying ‘can only concatenate str (not “int”) to str’.

And those are the 4 solutions you can use to print integers in Python. I hope this tutorial is useful.

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