On 27/08/2010 20:43, Jussi Piitulainen wrote:
Dave Angel writes:
Jussi Piitulainen wrote:
Ian writes:
Of course, the simpler way is to use the definition of a
Palindrome as the same backwards and forwards.
def isPalindrome(pal)
return pal == pal.reverse
Agreed. But is there any nicer way to spell .reverse than [::-1] in
Python? There is .swapcase() but no .reverse(), right?
There can't be a .reverse() method on string, because it's
immutable. You could use
"".join(reversed(pal))
but I'd prefer pal[::-1] as I said earlier.
There could easily be a .reverse() method on strings. It would return
the reversed string, like .swapcase() returns the swapcased string.
Lists have a .reverse method, but it's an in-place reversal. In order
to reduce confusion, a string method which returned the string reversed
would be better called .reversed().
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