Bool

Always Valid, returns True or False based on the value and the existance of the value.

The Bool class is accessible via the formencode.validators module.

If you want to convert strings like 'true' to booleans, then use StringBoolean.

Examples:

>>> Bool.to_python(0)
False
>>> Bool.to_python(1)
True
>>> Bool.to_python('')
False
>>> Bool.to_python(None)
False

Messages

badType:
The input must be a string (not a %(type)s: %(value)r)
empty:
Please enter a value
noneType:
The input must be a string (not None)

Attributes

a gettextargs

{}

a strip

False

a use_builtins_gettext

True

a accept_python

True

a __singletonmethods__

('to_python', 'from_python', 'message', 'all_messages', 'subvalidators')

a declarative_count

24

a __unpackargs__

()

a if_missing

False

a compound

False

a not_empty

False

a __mutableattributes__

()

a repeating

False

Methods

f __initargs__(self, new_attrs) ...

f __call__(self, *args, **kw) ...

f __classinit__(cls, new_attrs) ...

f __init__(self, *args, **kw) ...

f __sourcerepr__(self, source, binding=None) ...

f __classsourcerepr__(cls, source, binding=None) ...

f empty_value(self, value) ...

See the source for more information.