On 06/25/2015 06:07 PM, fl wrote:
Hi,
I read Ned's tutorial on Python. It is very interesting. On its last
example, I cannot understand the '_' in:
board=[[0]*8 for _ in range(8)]
I know '_' is the precious answer, but it is still unclear what it is
in the above line. Can you explain it to me?
Thanks,
He uses _ to indicate a variable whose name and value he does not care
about, but it *is* a valid variable name.
He could have used
... for i in range ...
or
... for unused_variable in range ...
This is a valid, though probably unclear, use of that same name:
>>> _ = 123
>>> print(_)
123
>>>
Gary Herron
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