On 29/08/2010 21:34, Roy Smith wrote:
In article<8dunm7fv5...@mid.individual.net>,
Gregory Ewing<greg.ew...@canterbury.ac.nz> wrote:
Steven D'Aprano wrote:
I'm not entirely sure what the use-case for swapcase is.
Obviously it's for correcting things that were typed
in with tHE cAPS lOCK kEY oN bY mISTAKE. :-)
So it would seem (http://bugs.python.org/msg94026).
It's also useful for when you're looking for a crypto algorithm and
rot13 is too strong.
It also provides a handy way to write is_alpha()...
def is_alpha(c):
return abs(ord(c) - ord(c.swapcase())) == 32
print is_alpha('a')
print is_alpha('A')
print is_alpha('1')
print is_alpha('>')
How is that better than:
print 'a'.isalpha()
print 'A'.isalpha()
print '1'.isalpha()
print '>'.isalpha()
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