Hello, can anybody explain/help me:
Python 2.4.2 (#2, Sep 30 2005, 21:19:01)
[GCC 4.0.2 20050808 (prerelease) (Ubuntu 4.0.1-4ubuntu8)] on linux2
class Upper(str):
def __new__(cls, value):
return str.__new__(cls, value.upper())
u = Upper('test')
u
'TEST'
type(u)
u = Upper('')
u
''
type(u)
This is good... try this:
value = 'test'
value
'test'
type(value)
value = type(value) is type('') and Upper(value) or value
value
'TEST'
type(value)
value = 1
value
1
type(value)
value = type(value) is type('') and Upper(value) or value
value
1
type(value)
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Effectively.
Thanks a lot Peter and Harold.
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Hi,
I try to define a (new-style) class who:
- have a __slots__ defined to be strict attributes,
- return None if the attribute is 'ok' but not set, or raise a 'normal'
error if the attribute isn't in __slots__.
This code runs, but is it the good way?
Thanks.
class test(object):
__slots__ =
