How to delete a character from a string using Python
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Chapters
00:00 How To Delete A Character From A String Using Python
00:29 Answer 1 Score 87
00:46 Answer 2 Score 92
00:59 Accepted Answer Score 799
01:33 Answer 4 Score 12
02:12 Thank you
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Full question
https://stackoverflow.com/questions/3559...
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Content licensed under CC BY-SA
https://meta.stackexchange.com/help/lice...
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Tags
#python #string
#avk47
ACCEPTED ANSWER
Score 799
In Python, strings are immutable, so you have to create a new string. You have a few options of how to create the new string. If you want to remove the 'M' wherever it appears:
newstr = oldstr.replace("M", "")
If you want to remove the central character:
midlen = len(oldstr) // 2
newstr = oldstr[:midlen] + oldstr[midlen+1:]
You asked if strings end with a special character. No, you are thinking like a C programmer. In Python, strings are stored with their length, so any byte value, including \0, can appear in a string.
ANSWER 2
Score 92
To replace a specific position:
s = s[:pos] + s[(pos+1):]
To replace a specific character:
s = s.replace('M','')
ANSWER 3
Score 87
This is probably the best way:
original = "EXAMPLE"
removed = original.replace("M", "")
Don't worry about shifting characters and such. Most Python code takes place on a much higher level of abstraction.
ANSWER 4
Score 12
How can I remove the middle character, i.e., M from it?
You can't, because strings in Python are immutable.
Do strings in Python end in any special character?
No. They are similar to lists of characters; the length of the list defines the length of the string, and no character acts as a terminator.
Which is a better way - shifting everything right to left starting from the middle character OR creation of a new string and not copying the middle character?
You cannot modify the existing string, so you must create a new one containing everything except the middle character.