3 number and dot..
steve at REMOVE-THIS-cybersource.com.au
Fri Nov 2 18:54:56 CET 2007
On Fri, 02 Nov 2007 16:39:12 +0000, Roberto Bonvallet wrote:
> On 31 oct, 22:21, Paul Rubin <http://phr...@NOSPAM.invalid> wrote:
>> def convert(n):
>> assert type(n) in (int,long)
> I'd replace this line with n = int(n), more in the spirit of duck
Not necessarily. Something duck typing is too liberal in what it accepts.
You might want convert(math.pi) to raise an exception, although I'd
suggestion an assert is the wrong test. A better test would be an
explicit type check with raise:
if not isinstance(n, (int, long)):
raise TypeError('n not an integer')
assert is for "this can never happen" tests rather than type checking.
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