On Tue, Nov 28, 2017 at 04:25:23PM +0000, Rob Cliffe wrote:
> Given that we have this kind of arcane discussion fairly regularly (not
> just in this thread), and it always makes my head spin, and it seems I'm
> not the only one who gets confused:
>
> How about having a module that provides functions such as
>
> isgenerator isiterator isiterable etc.
There is no single module that does this, but the inspect module comes
close:
inspect.isgenerator
inspect.isgeneratorfunction
will tell you the difference between these two:
def gen_function():
yield 1
generator = gen_function()
The collections.abc module has ABCs that you can use with isinstance:
collections.abc.Iterable
collections.abc.Iterator
collections.abc.Sequence
For example, we know that range is not a generator but is a sequence:
py> inspect.isgenerator(range(10))
False
py> isinstance(range(10), collections.abc.Sequence)
True
--
Steve
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