On 4/14/2010 11:19 AM, J. Cliff Dyer wrote:
On Wed, 2010-04-14 at 15:51 +0100, john maclean wrote:
self.assertEqual(platform.__builtins__.__class__, dict,
"platform.__class__ supposed to be dict")
self.assertEqual(platform.__name__, 'platform' )
The preferred spelling for:
platform.__builtins__.__class__
would be
type(platform.__builtins__)
Agreed
It's shorter and easier to read, but essentially says the same thing.
You can also use it on integer literals, which you can't do with your
syntax:
>>> type(1)
<type 'int'>
>>> 1.__class__
...
SyntaxError: invalid syntax
Add the needed space and it works fine.
>>> 1 .__class__
<class 'int'>
A possible use of literal int attributes is for bound mehods:
>>> inc = 1 .__add__
>>> inc(3)
4
>>> inc(3.0)
NotImplemented
Whereas def inc(n): return n+1 is generic and would return 4.0.
Terry Jan Reedy
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