'str' object does not support item assignment'str' object does not support item assignment code example

Example: str object does not support assignment python

>>> str1 = "mystring"
>>> list1 = list(str1)
>>> list1[5] = 'u'
>>> str1 = ''.join(list1)
>>> print(str1)
mystrung
>>> type(str1)
<type 'str'>