On Fri, Feb 6, 2015 at 12:12 PM, Devin Jeanpierre
<jeanpierr...@gmail.com> wrote:
> Here's another example, one that still exists in Python 3:
>
>>>> [] = ''
>>>> () = ''
> File "<stdin>", line 1
> SyntaxError: can't assign to ()
>
> The syntax explicitly blacklists (), but forgets to blacklist [].
So... this is actually a really really obscure little feature.
[] = x
# is equivalent to
try: next(iter(x))
except StopIteration: pass
else: raise ValueError("too many values to unpack (expected 0)")
It's a way of asserting that an iterator is exhausted! Perfect code
snippet for your next International Obfuscated Python Code Contest
entry.
ChrisA
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