[Python-ideas] 1_000_000

[Antoine Pitrou]

On Fri, 6 May 2011 23:06:18 +0200
"dag.odenhall at gmail.com"
<dag.odenhall at gmail.com> wrote:
> On 6 May 2011 19:51, Matt Chaput <matt-KKMwxO2wslj3fQ9qLvQP4Q at public.gmane.org> wrote:
> > Not sure if this has been proposed before: A syntax change to allow
> > underscores as thousands separators in literal numbers to improve
> > readability, e.g.:
> >
> >  for i in range(1, 1_000_000):
> >    pass
> >
> > I believe D allows this and while it's a small thing it really is much more
> > readable.
> 
> Ruby too.
> 
> You could also use e-notation[1]: 1e6, in your example. In many
> situations it's even more readable because you don't need to "count
> the zeros". This is already supported in Python.

Yes, but it gives a float, not an integer:

>>> for i in range(0, 1e6): pass
... 
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: 'float' object cannot be interpreted as an integer


Regards

Antoine.