8 Ways To Remove Newline From The List in Python

Here we will learn 8 different ways to remove a newline character from a list in python? In Python, there are many built-in functions are available to remove a newline character from the list. We tried to cover all the possible methods here. This article is going to be very interesting and helpful to learn.

Newline character is specified using a special character “\n”. It is useful to generate a new line. Whenever we are using a character \n, it will automatically generate a new line. The following methods are available to remove a newline are:

1. slice operator
2. replace() method
3. re.sub() function
4. strip function
5. rstrip() function
6. map function with lambda
7. map function without lambda
8. enumerate

These are the methods available to remove the newline characters from the list.

Method 1 : Using slicing operator to remove newline in python

The slice operator is useful to represent the index of the character. Slicing has two methods positive indexing and negative indexing. Positive indexing starts with position value [0] and negative indexing starts with [-1]. Slicing is useful to specify where to start or end the list.

Syntax

list[initial : end : jump value]

Parameter

• initial – initial value of the list
• end – final value of the list
• jump value – increment values

Return

sliced value

Code

lst=['This\n','is\n','Python\n','Pool\n']
new_lst = [x[:-1] for x in lst]
print(new_lst)

A variable lst holds the list to remove a new line character. Using negative slicing to remove the \n character. Here the new line character is at the end, so we are using negative indexing. For loop is useful to iterate till the end of the list.

Output

['This', 'is', 'Python', 'Pool']

Recommended Reading | Python Print Without Newline [How to, Examples, Tutorial]

Method 2 : Using replace method to remove newline in python

This replace() method is useful to replace the specified character with a given character. It is a built-in function in python. So we need not install this function separately.

Syntax

list.replace(old value, new value, count)

Parameters

• old value – original value in a list or string
• new value – the list to be replaced
• count – specifying how many times the list is to be replaced, optional.

Returns

replaced list

Code

lst=['This\n','is\n','Python\n','Pool\n']
rep = []
for x in lst:
    rep.append(x.replace("\n", ""))
print(list(rep))

A variable lst holds the list to remove a new line character. Declaring an empty list in a name of rep(). Creating for loop to iterate till the end of the list. After removing the newline character it will store in a rep variable. For that, we are using the append() function to add at the end of the list.

Output

['This', 'is', 'Python', 'Pool']

Method 3: Using re.sub() function to remove newline in python

This function is also similar replace() function. re.sub() is also useful to replace the specified character with a given character. It is a built-in function in python. So we need not install this function separately.

Syntax

re.sub(pattern,repl,string).

Parameters

• pattern
• repl
• string

Returns

replaced list

Code

import re
lst=['This\n','is\n','Python\n','Pool\n']
rep = []
for x in lst:
    rep.append(x.replace("\n", ""))
print(list(rep))

Importing re module. A variable lst holds the list to remove a new line character. Declaring an empty list in a name of rep(). Creating for loop to iterate till the end of the list. After removing the newline character it will store in a rep variable. For that, we are using the append() function to add at the end of the list.

Output

 ['This', 'is', 'Python', 'Pool'] 

Recommended Reading | Multiple Ways To Print Blank Line in Python

Method 4 : Using strip() function to remove newline in python

strip() function is useful to remove white spaces or any special characters. It is a built-in function in python.

Syntax

list.strip(characters)

Parameter

characters – optional

Returns

list without any special characters

Code

lst=['This\n','is\n','Python\n','Pool\n']
new_lst=[]
for i in lst:
    new_lst.append(i.strip())
print(new_lst)

A variable lst holds the list to remove a new line character. Declaring an empty list in a name of new_lst. Creating for loop to iterate till the end of the list. After removing the newline character it will store in a new_lst variable. For that, we are using the append() function to add at the end of the list. Using strip function to remove the newline character.

Output

['This', 'is', 'Python', 'Pool'] 

Method 5 : Using rstrip function to remove newline in python

This function is also similar strip() function. rstrip() function is useful to remove white spaces or any special characters. It is a built-in function in python.

Syntax

list.rstrip(characters)

Parameter

character

Return

A string

Code

lst=['This\n','is\n','Python\n','Pool\n']
new_lst=[]
for i in lst:
    new_lst.append(i.rstrip())
print(new_lst)

A variable lst holds the list to remove a new line character. Declaring an empty list in a name of new_lst. Creating for loop to iterate till the end of the list. After removing the newline character it will store in a new_lst variable. For that, we are using the append() function to add at the end of the list. Using the rstrip function to remove the newline character.

Output

['This', 'is', 'Python', 'Pool'] 

Method 6 : Using map function with the lambda

map function is a built-in function. It is useful to process and transform all the items in an iterable. The map() function takes a function and a list as an argument.

Syntax

lambda arguments: expression

Parameter

expression

Code

lst =['This\n','is\n','Python\n','Pool\n']
print(list(map(lambda x:x.strip(),lst)))

A variable lst holds the list to remove a new line character. Using map function with lambda to remove the newline character. Here strip() function is also useful to perform the task.

Output

['This', 'is', 'Python', 'Pool'] 

Method 7 : Using map function without lambda

lst= ['This\n','is\n','Python\n','Pool\n']
print(list(map(str.strip,lst)))

A variable lst holds the list to remove a new line character. Using map function without lambda to remove the newline character. Here strip() function is also useful to perform the task.

Output

['This', 'is', 'Python', 'Pool'] 

Method 8 : Using enumerate to remove a newline from a list

It is a built-in function that takes a collection and returns an enumerated object.

Syntax

enumerate(iterable, start)

Parameter

• iterable
• start

Return

enumerated object

Code

lst =['This\n','is\n','Python\n','Pool\n']
for i,n in enumerate(lst):
    lst[i] = n.strip()
print(lst)

A variable lst holds the list. Creating for loop to iterate till the end of the loop. Using strip() to remove the new line character.

Output

 ['This', 'is', 'Python', 'Pool']  

Frequently asked questions related to remove newline from list

Conclusion

Here we have learned 8 ways to remove a newline from the list in python. “\n” is a newline character in python. We hope this article is easy to understand. The list is enclosed within a square bracket and separated by commas.