Sivaram Neelakantan wrote:
def palin(text):
if first(text) == last(text):
# print first(text), last(text), middle(text), len(middle(text))
if len(middle(text)) == 0:
print True
else:
palin(middle(text))
else:
print False
Every branch of the function must include a return, or Python will just return
None by default. You have three branches. Two of them print a flag. It is easy
enough to fix them by changing print to return. The third branch has no
return. It needs one.
--
Steven
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