How to change a string into uppercase

Question

I have problem in changing a string into uppercase with Python. In my research, I got string.ascii_uppercase but it doesn't work.

The following code:

 >>s = 'sdsd'  >>s.ascii_uppercase 

Gives this error message:

Traceback (most recent call last):   File "<console>", line 1, in <module> AttributeError: 'str' object has no attribute 'ascii_uppercase' 

My question is: how can I convert a string into uppercase in Python?

Answer 1

Use str.upper():

>>> s = 'sdsd' >>> s.upper() 'SDSD' 

See String Methods.

Answer 2

To get upper case version of a string you can use str.upper:

s = 'sdsd' s.upper() #=> 'SDSD' 

On the other hand string.ascii_uppercase is a string containing all ASCII letters in upper case:

import string string.ascii_uppercase #=> 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'