Converting specific letters to uppercase or lowercase in python

Question

So to return a copy of a string converted to lowercase or uppercase one obviously uses the lower() or upper().

But how does one go about making a copy of a string with specific letters converted to upper or lowercase. For example how would i convert 'test' into 'TesT'

this is honestly baffling me so help is greatly appreciated

got it, thanks for the help Cyber and Matt!

Answer 1

If you're just looking to replace specific letters:

>>> s = "test"
>>> s.replace("t", "T")
'TesT'

Answer 2

There is one obvious solution, slice the string and upper the parts you want:

test = 'test'
test = test[0].upper() + test[1:-1] + test[-1].upper()