Remove special characters from string in python; In this tutorial, You will learn how to remove special characters from string in python.
A special character is one that is not considered a number or letter. Symbols, accent marks, and punctuation marks are considered special characters. Similarly, ASCII control characters and formatting characters like paragraph marks are also special characters.
How to Remove Special Characters From String in Python
- 1: Remove special characters from string in python using
replace() - 2: Remove special characters from string in python using
join()+ generator - 3: Remove special characters from string in python using Using
filter()
1: Remove special characters from string in python using replace()
In the below python program, we will use replace() inside a loop to check special characters and remove it using replace() function.
# Python code to remove special char
# using replace()
# initializing special characters
sp_chars = [';', ':', '!', "*"]
# given string
givenStr = "Hel;lo *w:o!r;ld * de*ar !"
# print given string
print ("Original String : " + givenStr)
# using replace() to
# remove special chars
for i in sp_chars :
givenStr = givenStr.replace(i, '')
# printing resultant string
print ("After Remove special char : " + str(givenStr))
After executing the program, the output will be:
Original String : Hel;lo *w:o!r;ld * de*ar ! After Remove special char : Hello world dear
2: Remove special characters from string in python using join() + generator
In the below python program, we will use join() to remove special characters from a given string. And create a new string in python.
# Python code to remove special char
# using join() + generator
# initializing special characters
sp_chars = [';', ':', '!', "*"]
# given string
givenStr = "Hel;lo *w:o!r;ld * de*ar !"
# print given string
print ("Original String : " + givenStr)
# using join() + generator to
# remove special chars
givenStr = ''.join(i for i in givenStr if not i in sp_chars)
# printing resultant string
print ("After Remove special char : " + str(givenStr))
After executing the program, the output will be:
Original String : Hel;lo *w:o!r;ld * de*ar ! After Remove special char : Hello world dear
3: Remove special characters from string in python using Using filter()
This is yet another solution to perform remove special characters from string. Using the lambda function with filter function can remove all the special characters from a string and return new string without special characters.
# Python code to remove special char
# using filter()
# initializing special characters
sp_chars = [';', ':', '!', "*"]
# given string
givenStr = "Hel;lo *w:o!r;ld * de*ar !"
# print given string
print ("Original String : " + givenStr)
# using filter() to
# remove special chars
givenStr = filter(lambda i: i not in sp_chars, givenStr)
# printing resultant string
print ("After Remove special char : " + str(givenStr))
After executing the program, the output will be:
Original String : Hel;lo *w:o!r;ld * de*ar ! After Remove special char : Hello world dear
