[Tutor] How to change the char in string for Python

Sudo Nohup sudo.nohup at gmail.com
Sun Feb 24 11:56:49 CET 2013

Dear all,

I want to change the value of a char in a string for Python. However, It
seems that "=" does not work.

Could you help me? Thanks!

str = "abcd"
result = [char = 'a' for char in str if char == 'c']


str = 'abcd'
for char in str:
    if char == 'a':
       char = 'c'


str = 'abcd'
for i in range(len(str)):
    if str[i] == 'a':
       str[i] = 'c'

Traceback (most recent call last):
  File "<stdin>", line 3, in <module>
TypeError: 'str' object does not support item assignment

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