Error in using slice assignment in strings

Question

website = 'http://www.python.org'
website[18:] = 'com'

The error says:

'str' object does not support item assignment.

Why is this code snippet not legal?

timgeb · Accepted Answer · 2015-12-27 17:37:30Z

8

Because strings are immutable. Do it like this:

>>> website = 'http://www.python.org'
>>> website = website[:18] + 'com' # build a new string, reassign variable website
>>> website
'http://www.python.com'

answered Dec 27, 2015 at 17:37

timgeb

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Comments

repzero · Accepted Answer · 2015-12-27 19:26:59Z

0

If you prefer not to count how many characters to stop before you reach .org

you can use

website=website[:len(website)-4]+".com"

answered Dec 27, 2015 at 19:26

repzero

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