Python：从字符串中删除一个字符

Question

I want to delete ie character number 5 in a string. So I did:

del line[5]

and got: TypeError: 'str' object doesn't support item deletion

So no I wonder whether there is a different efficient solution to the problem.

Answer 1

Strings are immutable in Python, so you can't change them in-place.

But of course you can assign a combination of string slices back to the same identifier:

mystr = mystr[:5] + mystr[6:]

Answer 2

I use a function similar to :

def delstring(mystring, indexes):
  return ''.join([let for ind, let in enumerate(mystring) if ind not in indexes])

indexes should be an iterable (list, tuple..)

Answer 3

bytearray is a type which can be changed in place. And if you are using Python2.x, it can very easily convert to default str type: bytes.

b=bytearray(s)
del b[5]
s=str(b)