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Python print() Function

How to use Python's print() function to output strings, numbers, lists, tuples, and other objects with custom separators, endings, and file destinations.

The print() function prints the specified message to the screen or the text file. The message can be a string, or any other object (such as number, list, tuple etc.)

Syntax

print(*objects, sep, end, file, flush)

Python print() function parameters:

Parameter Condition Description
*objects Optional Zero or more objects to print.
sep Optional A string to print between each object. Default is a single space ' '
end Optional A string to print at the end. Default is a newline '\n'.
file Optional An object with a write(string) method. Default is sys.stdout (screen)
flush Optional If True, output buffer is forcibly flushed

Python print() function returns None (i.e. it does not return any value).

Examples

Example 1: Basic Example with String

Let's print the string 'Hello World!' on screen

print('Hello World!') # Output: Hello World!

output

Hello World!

Example 2: Printing Multiple Objects

You can print as many values as you like, just separate them with a comma ,.

print('One','Two','Three','Four','Five') # Output: One Two Three Four Five

output

One Two Three Four Five

Example 3: Printing with Custom Separator

When you print multiple values, each value is separated by default with a space ' '.

By specifying sep parameter, you can separate each value by something different from a space.

For example, let's separate each value with '-'

print('One','Two','Three', sep='-') # Output: One-Two-Three

output

One-Two-Three

You can choose any string you want as separator.

print('One','Two','Three', sep=' @WoW# ') # Output: One @WoW# Two @WoW# Three

output

One @WoW# Two @WoW# Three

Example 4: Ending with a Custom String

The print() function includes a newline \n at the end by default.

For example, to print the values without a trailing newline, specify end parameter.

print('First line.', end=' ')   # print WITHOUT trailing newline
print('Next line')              # print as usual with trailing newline

output

First line. Next line

Example 5: Printing Objects

You can print any object other than string such as number, list, tuple, etc. The object is converted into a string before written to the screen.

For example, you can print numbers:

print(1, 2, 3, 4, 5) # Output: 1 2 3 4 5

output

1 2 3 4 5

For example, you can print lists:

print([1, 2, 'red'])    # Output: [1, 2, 'red']

output

[1, 2, 'red']

For example, you can print tuples:

print((1, 2, 'red'))    # Output: (1, 2, 'red')

output

(1, 2, 'red')

Example 6: Printing to a File

In Python, you can print objects to the file by specifying the file parameter.

For example,

sourceFile = open('myFile.txt', 'w')
print('Write this in the file!', file = sourceFile)
sourceFile.close()

or, the same example using the with statement:

with open('myfile.txt', 'w') as sourceFile:
    print('Write this in the file!!', file=sourceFile)

Example 7: Printing a Custom Object

To print custom objects in Python, you can override the __str__() method in your class: this method returns a string that represents the object.

When you print an object, Python automatically calls the __str__() method to determine what to display.

For example, let's print an instance of class Person:

class Person:
    def __init__(self, name, age):
        self.name = name
        self.age = age

    def __str__(self):
        return f"Person(name={self.name}, age={self.age})"


p = Person("Tom",  25)
print(p)

output

Person(name=Tom, age=25)
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