> def test(s):
> if type(s) != ? :
> return
> #So here I want establish a situation about that if <s> is not string
> #then <return>, but how should write the <?> ?
> #Or is there any other way to do it?
>>> isinstance("hello", basestring)
True
>>> isinstance(u"hello", basestring)
True
This will return true for both regular strings and for unicode
strings. If that's a problem, you can use
>>> import types
>>> isinstance("hello", types.StringType)
True
>>> isinstance(u"hello", types.StringType)
False
>>> isinstance("hello", types.UnicodeType)
False
>>> isinstance(u"hello", types.UnicodeType)
True
...or, if you don't want to qualify them with "types." each time,
you can use
>>> from types import StringType, UnicodeType
to bring them into the local namespace.
HTH,
-tkc
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