Fundamentals of Python Programming

Python print() Function

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Python print() Function

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    String Concatenation in Python

    String formatting in Python

    Python print() Function

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    Exit Command in Python

    Python Virtual Environment

There are 4 ways to use print function in python:

Example 1: Print() with sep Parameter

Suppose you have a list of strings “Hello”, “World”, “I”, “Love”, “Python” . So, you have a comma separated list of strings and you want to print all these strings so let us see what output we get

print("Hello","World","I","Love","Python")

Output:

Hello World I Love Python

You will see that output is in a same line but you can specify that what should be the  separator between these words so maybe you can have a separator which is called a comma so

print("Hello","World","I","Love","Python",sep=",")

Output:

Hello,World,I,Love,Python

You will see the list  is now separated with a comma and suppose you want to have a separator  backslash  n

print("Hello","World","I","Love","Python",sep="\n")

Output:

Hello
World
I
Love
Python

You will see all the words come in a new line or you can have a backslash double n so all the words are now separated with two backslashes n

print("Hello","World","I","Love","Python",sep="\n\n")

Output:

Hello

World

I

Love

Python

So you will find one empty line between each word right so this is the  use of a separator parameter this is a  named parameter and you can specify any separator between these words maybe it can be a plus so you will see Hello Plus world plus I plus love plus  Python so this is one use case of  using this ”sep” keyboard.

print("Hello","World","I","Love","Python",sep="+")

Output:

Hello+World+I+Love+Python

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Example 2: Print() with end Parameter

Next way is the “end” keyword, so suppose A is 10 and B is 20 and you want to print A and B so the  output is in a different line

a = 10
b = 20
print(a)

print(b)

Output

10
20

but if you specify that the end of this line should be with the space you will see the output is in the same line

a = 10
b = 20
print(a,end=' ')
print(b)

Output:

10 20

or if the end is with a comma you will see the numbers are separated by a comma.

a = 85
b = 95
print(a,end=', ')
print(b)

Output:

85 95

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Example 3: Print() with format method

Now we are going to learn about the format method. Suppose I have variable a which is equal to Indians and I have variable b which is equal to mangoes and we want to print into some particular format so here we will specify the indices of  the arguments which we will be giving to our format function so consider the below code

a = "Indians"
b = "Mangoes"
print("{0} love {1}”.format(a,b))

Output:

Indians love Mangoes

a = "Indians"
b = "Mangoes"

c = "Russians"
d = "Pizza"


print("{0} love {1}”.format(c,d))

Output:

Russians love Pizza

So here {0} love {1} and we call dot format method and then we will supply a word parameter side a and b so you will see that the zeroth argument is replaced by ’a’ which is Indians and  the first argument is replaced by ‘b’ which is mangoes. This method comes very handy when you are printing some data or you want to print things in a similar format now consider ‘c’ is Russians and ‘d’ is Pizza  and you can just call this method and you have to just  change these values  and  you will see Russians love Pizza.

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Example 4: Print() with modulo operator

This print function behaves as a template and one more thing about the print function is that it also supports C language type printing what it means is you can have a print percentage let's say it is again 10 B is 20 and you want to print numbers right so suppose you  entered a number ‘a’ which is %d  and B it so you entered these numbers and you will give a comma and so here you will give a %d and in the bracket you will specify what does these numbers mean and %d and here you will give a and b see you entered 10 and 20 this is also a template kind of thing where the first %d will be replaced by the first integer and the second %d will be replaced by a second integer.

a = 10
b = 20

print("You entered %d and %d"%(a,b))

Output:

You entered 10 and 20

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