Fix Python – How to add a string in a certain position?

Question

Asked By – Michel Andrade

Is there any function in Python that I can use to insert a value in a certain position of a string?

Something like this:

"3655879ACB6" then in position 4 add "-" to become "3655-879ACB6"

Now we will see solution for issue: How to add a string in a certain position?


Answer

No. Python Strings are immutable.

>>> s='355879ACB6'
>>> s[4:4] = '-'
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: 'str' object does not support item assignment

It is, however, possible to create a new string that has the inserted character:

>>> s[:4] + '-' + s[4:]
'3558-79ACB6'

This question is answered By – Ignacio Vazquez-Abrams

This answer is collected from stackoverflow and reviewed by FixPython community admins, is licensed under cc by-sa 2.5 , cc by-sa 3.0 and cc by-sa 4.0