Chris Rebert wrote:
On Tue, Mar 17, 2009 at 2:24 PM, Robert Kern <robert.k...@gmail.com> wrote:
On 2009-03-17 16:13, Paddy wrote:
We the def statement and the lambda expression. We have the class
statement, but is their an expression to create a class?
Or:
def F(): pass
type(F)
<type 'function'>
# Is to:
F2 = lambda : none
type(F2)
<type 'function'>
# As
class O(object): pass
type(O)
<type 'type'>
# is to:
# ????
type('O', (object,), {})
Further detail from the docs (http://docs.python.org/library/functions.html):
type(name, bases, dict)
Return a new type object. This is essentially a dynamic form of
the class statement. The name string is the class name and becomes the
__name__ attribute; the bases tuple itemizes the base classes and
becomes the __bases__ attribute; and the dict dictionary is the
namespace containing definitions for class body and becomes the
__dict__ attribute. For example, the following two statements create
identical type objects:
>>> class X(object):
... a = 1
...
>>> X = type('X', (object,), dict(a=1))
New in version 2.2.
Cheers,
Chris
Thanks guys. Youve put my mind at rest!
- Paddy.
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