Re: validators.String validates []

I think these issues are resolved in the trunk.  Thanks for the tests.

Felix Schwarz wrote:
> Another weird thing:
>  >>> from formencode.validators import UnicodeString, String
>  >>> String().to_python([])
> []
>  >>> UnicodeString().to_python([])
> u''
> 
> Furthermore, I think there is a bug in UnicodeString:
>  >>> UnicodeString().to_python([1, 2])
> Traceback (most recent call last):
>    File "<stdin>", line 1, in ?
>    File "/usr/lib/python2.4/site-packages/formencode/api.py", line 368, in to_python
>      value = tp(value, state)
>    File "/usr/lib/python2.4/site-packages/formencode/validators.py", line 1069, in _to_python
>      return unicode(value, self.inputEncoding)
> TypeError: coercing to Unicode: need string or buffer, list found
> 
> As validators are often used on untrusted input, I thought that validators should only
> raise Invalid exceptions.
> 
> fs
> 
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Ian Bicking : [email protected] : http://blog.ianbicking.org
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