Assigning a value to a list variable fails

[bajajv]

Hi,
The below code works:

newList = ['aa', 'bb', 'cc', 'dd']
newList[2] = 'zz'
print newList
['aa', 'bb', 'zz', 'dd']

But the following code is giving error -

myDBRow = [''] * len(columnList)
myDBRow[DB.RegionCode] = 'ABC'
TypeError: 'str' object does not support item assignment

Can you please suggest something here.

Thanks.

[bvdet]

The error indicates that myDBRow is a string. Your code appears correct as in this example:

>>> myDBRow = [''] * 6
>>> myDBRow
['', '', '', '', '', '']
>>> myDBRow[3]="ABC"
>>> myDBRow
['', '', '', 'ABC', '', '']

Your error can be reproduced with this example:

>>> myDBRow = "*" * 6
>>> myDBRow[3]="ABC"
Traceback (most recent call last):
  File "<interactive input>", line 1, in <module>
TypeError: 'str' object does not support item assignment
>>>

Something is going on that is not apparent in your code.

[dwblas]

The first thing to check for is, was "myDBRow" used as a separate variable name somewhere else. Do a search for the name to see if it is used elsewhere.

[bajajv]

Hi,
Yes, you were right.
My mistake, I accidently made it a string at some place, and that was the reason of this error.
Sorry for the trouble.
Appreciate your responses.
Thanks.