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From: Tim Chase <python.list@tim.thechases.com>
Newsgroups: comp.lang.python
Subject: Re: Parens do create a tuple (was: one-element tuples [Was: Most probably a stupid question, but I still want to ask])
Date: Sun, 10 Apr 2016 19:52:03 -0500
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On 2016-04-11 10:45, Ben Finney wrote:
> Also, there is another obvious way to create an empty tuple: call
> the =E2=80=98tuple=E2=80=99 type directly:
>=20
>     >>> foo =3D tuple()
>     >>> print(type(foo), len(foo)) =20
>     <class 'tuple'> 0

But here the parens make the tuple too:

  >>> foo =3D tuple
  >>> print(type(foo))
  <class 'type'>
  >>> len(foo)
  Traceback (most recent call last):
    File "<stdin>", line 1, in <module>
  TypeError: object of type 'type' has no len()

(totally just yanking chains, throwing pebbles in the pond to watch
the ripples, and otherwise sewing confusion ;-)

-tkc