Python Programming with the Java™ Class Libraries: A Tutorial for Building Web and Enterprise Applications with Jython

Case Change: capitalize(), capwords(), swapcases(), lower(), upper()

The capitalize(word) function capitalizes a given word in a string.

>>> capitalize("bill")
'Bill'

The capwords(s) function capitalizes all words in a string.

>>> str = "bill joy"
>>> str = capwords(str)
>>> print str
Bill Joy

The swapcases(s) function converts uppercase letters to lowercase letters and vice versa.

>>> swapcase("ABC abc 123")
'abc ABC 123'

(Frankly, I don't see the value of this one.)

The lower(s) function converts uppercase letters to lowercase letters.

>>> lower("ABC abc 123")
'abc abc 123'

The upper(s) function converts lowercase letters to uppercase letters.

>>> upper("ABC abc 123")
'ABC ABC 123'