print() : Builtin Function to return output to screen or file in Python

print(object ,sep='Separator',end='end',file=file,flush=flush) returns output to screen or file

`object`	To be printed to screen or file
`sep`	Optional , separator can be used between the outputs
`end`	Optional, default is '\n', used to remove line break after the output
`file`	Optional , file object to write to file
`flush`	Optional , Default value is False, Managing buffer

String output

print('Hello world')

Python print() function to display output using sep end file and flush options

printing output with format

id=5name="Ronal Jack"mark=45print("ID :{:02d} Name:{:15s} Mark: {:2d}".format(id,name,mark))

Output is here

ID :05 Name:Ronal Jack      Mark: 45

Right align

name='My Name'age=5print("Name  {:>25s}, Age {:2d}".format(name,age))

Now the name variable will align right ( within the 25 char space )

Name                    My Name, Age  5

Printing decimal upto 2 places using format

my_str="Mr ABCD"avg=356.23456id=5name="Welcome to Python"print("Hi {}, Your id = {}, Your Average ={:.2f})".format(my_str,id,avg))

Output is here

Hi Mr ABCD, Your id = 5, Your Average =356.23)

end

Python adds one line break ( default value of end='\n' ) after each print command, we can remove the line break ( Watch the end='' within the print ())

my_str="Mr ABCD"avg=356.23456id=5name="Welcome to Python"print("Hi {}, Your id = {} ".format(my_str,id),end='')print("Your Average ={:.2f})".format(avg))

output is here

Hi Mr ABCD, Your id = 5 Your Average =356.23)

We can use end to print any string at the end of the output. Check here how we used end='...' to print dots after the number.

for i in range (4):  print(i,end='...')

Output

0...1...2...3...

sep

We can add a separator in between strings

print('welcome','to','plus2net', sep='-')

Output

welcome-to-plus2net

Multiple strings with +

print('Welcome '+ 'to '+'plus2net')

Output

Welcome to plus2net

flush

We can send the output by flushing the internal buffer. Default value for flush is False.
In this case we are trying to send each output within the loop after a delay of 1 second. With the default setting of False the output will come all at the same time after a delay of 5 seconds. By keeping the value of flash=True we can send the outputs in steps with a delay of 1 second.

import timefor i in range(5,0,-1):    print(i,end=' >> ',flush=False) # default value for flush    #print(i,end=' >> ',flush=True) # delay in each output     time.sleep(1) # delay of 1 second print('Over')

Python print output with flush option to clear the buffer with example using timer

String and Integer

We can't print string with integer, this will generate error. TypeError: must be str, not int

print('Your visitor number is :' + 34)

We can use str() to change our integer to string.

print('Your visitor number is :' + str(34))

Write to file

with open('my_file.txt', mode='w') as fob:    print('hello world', file=fob)

This will create my_file.txt file in same directory and write 'hello world' to it.

Printing using variables inside string

a=2b="welcome"c="Python"print("Hello ",b," to ", c )

Output is here

Hello  welcome  to  Python

Using escape char

Let us print I can't travel by bus

print(' I can\'t travel by bus')

We used escape char \ inside the word can't to print single quote instead of using as string termination.
We can use special char \ inside our string without using as escape char by adding r before the quotes

print(r"C:\MyDocument\python\test.py")

Here \t is not considered as Tab and the out put is here

C:\MyDocument\python\test.py

We can add doble quote inside single quote

print ( 'We said "Welcome to plus2net"')

Output is here

We said "Welcome to plus2net"

print() with list

print() with tuple

print() with set

print() with dictionary

Subhendu Mohapatra

Author & Instructor at plus2net

I write and maintain practical tutorials on Python, PHP, SQL, JavaScript, HTML, jQuery, and web development at plus2net. The tutorials focus on clear explanations, working examples, and code that readers can test and adapt while learning.

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