How To Remove Character From A String By Index In Python

Some methods like converting string to list, using replace function, and using slice will help you remove character from a string by index in Python. Details of the ways are in the article below.

Remove character from a string by index in Python

Convert to a list to use delete functions on it

You can convert strings to a list using the compatible delete functions on the list to remove characters at a specific index and then convert them back to a string using the join() function. Here are some methods:

1. list. pop( index ): Specify the element’s index to be removed as a parameter. The pop() function will remove that element from the list.
2. del list [ index ]: The del command helps us to delete elements in a specified range in the list. You can use the del list [ start: end] syntax to remove multiple elements in the specified range.

Example:

• Initialize a string and convert it to a list using the list() function.
• Use functions to remove elements.
• Use the join() function, which returns the string.

myString = 'visit learnshareit website'
myList = list(myString)

# Remove an element with the del command
del myList[1]

result = ''.join(myList)
print('String after index removal:', result)

Output:

String after index removal: vsit learnshareit website

Remove elements using the pop function

Example:

myString = 'visit learnshareit website'
myList = list(myString)

# Remove elements using the pop function
myList.pop(1)

result = ''.join(myList)
print('String after index removal:', result)

Output:

String after index removal: vsit learnshareit website

Use the slicing operation

Syntax:

<string>[start : end : step]

Parameters:

• start: is the starting position to get the value. If left blank, the default is to get from the beginning of the tuple.
• end: end position. If left blank, all values ​​in the tuple will be taken.

Example:

• Initialize a list of elements.
• Use the slicing operation to retrieve sublists from the original list.
• You can customize the parameters of the syntax.

myString = 'visit learnshareit website'

# Use the String Slicing
print('Slicing range from start to finish:', myString[0:])
print('Slicing range from start to index =4:', myString[0:4])
print('Slicing range from start to finish with a jump of 2:', myString[0::2])

Output:

Slicing range from start to finish: visit learnshareit website
Slicing range from start to index is 4: visi
Slicing range from start to finish with a step of 2: vstlanhri est

Use the replace() function

Syntax:

str.replace(old, new, count)

Parameters:

• old: Original string.
• new: String will replace the original string.
• count: Specify the maximum number of character substitutions.

Example:

myString = 'visitlearnshareitwebsite'

# Use the replace function to delete the first occurrence of the 'i' character
newStr = myString.replace('i', '', 1)

print(newStr)

Output:

vsitlearnshareitwebsite

Use the replace() function to delete the first occurrence of the ‘i’ character.

Summary

Those are some ways I recommend you to use it to remove character from a string by index in Python. The way I usually use it is to use the replace() function. Hope the article is helpful to you. Thank you for reading!

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Jason Wilson

My name is Jason Wilson, you can call me Jason. My major is information technology, and I am proficient in C++, Python, and Java. I hope my writings are useful to you while you study programming languages.

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Name of the university: HHAU
Major: IT
Programming Languages: C++, Python, Java