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object --+ | basevalidator.BaseValidator --+ | IsMember
Only allow values of a particular set.
Length limitations are expressed as (inclusive) minimum and maximum sizes. This is most useful for strings, but could be used for lists.
For example:
>>> v = IsMember([1, 2, 3]) >>> v(1) 1 >>> v(4) Traceback (most recent call last): ... ValueError: '4' is not a member of [1, 2, 3]
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Inherited from Inherited from |
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Inherited from |
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Check a value is of the desired form. This is the workhorse method that is called by validate to check passed values. As such, errors are signalled by either by throwing a meaningful exception or by returning false. This is one of the obvious and easiest places to customize behaviour by overriding in a subclass.
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Generated by Epydoc 3.0.1 on Fri Jul 22 15:13:46 2011 | http://epydoc.sourceforge.net |