On Mon, Feb 8, 2016 at 1:51 PM, Victor Stinner <[email protected]>
wrote:
> I didn't know. I just checked. It's assert used with a non-empty tuple:
>
> >>> assert ("tuple",)
>
which is more interesting with a tuple without the parentheses:
t = In [*4*]: t = True,
In [*5*]: t
Out[*5*]: (True,)
works fine, but not if you use an assert:
In [*7*]: assert True,
File "<ipython-input-7-38940c80755c>", line 1
assert True,
^
SyntaxError: invalid syntax
I actually like the Warning with the note about the problem better:
<stdin>:1: SyntaxWarning: assertion is always true, perhaps remove
> parentheses?
And, of course, more relevant with something Falsey in the tuple:
In [*14*]: assert (False,)
<ipython-input-14-05f425f558c4>:1: SyntaxWarning: assertion is always true,
perhaps remove parentheses?
assert (False,)
But I am curious why you get a different error without the parens?
-CHB
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