João Bernardo added the comment:
> I don't understand. There's already a way to make round return an integer:
> don't pass a second argument.
If this function were to be written in Python, it would be something like:
def round(number, ndigits=0):
...
or
def round(number, ndigits=None):
...
But in C you can forge the signature to whatever you want and parse the
arguments accordingly. In Python there's always a way to get the default
behavior by passing the default argument, but in C it may not exist (in this
case `PyObject *o_ndigits = NULL;`)
So, I propose the default value being `None`, so this behavior can be achieved
using a second argument.
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<http://bugs.python.org/issue19933>
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