Package konval :: Module containerval :: Class IsEmpty

Class IsEmpty

                 object --+        
                          |        
basevalidator.BaseValidator --+    
                              |    
                    CheckLength --+
                                  |
                                 IsEmpty

Checks the value is empty (an empty string, list, etc.)

For example:

>>> v = IsEmpty()
>>> v("abc")
Traceback (most recent call last):
...
ValueError: 'abc' is not empty
>>> v([])
[]

Instance Methods

[hide private]

__init__(self)
x.__init__(...) initializes x; see x.__class__.__doc__ for signature

source code

make_validation_error_msg(self, bad_val, err)
Generate an meaningful error message for an empty value.

source code

Inherited from CheckLength: validate_value

Inherited from basevalidator.BaseValidator: __call__, convert, convert_value, make_conversion_error_msg, raise_conversion_error, raise_validation_error, validate

Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __repr__, __setattr__, __sizeof__, __str__, __subclasshook__

Properties

[hide private]

Inherited from object: __class__

Method Details

[hide private]

init(self)
(Constructor)

source code

x.__init__(...) initializes x; see x.__class__.__doc__ for signature

Overrides: object.__init__: (inherited documentation)

make_validation_error_msg(self, bad_val, err)

source code

Generate an meaningful error message for an empty value.

Overrides: basevalidator.BaseValidator.make_validation_error_msg

Class IsEmpty

__init__(self) (Constructor)

make_validation_error_msg(self, bad_val, err)

init(self)
(Constructor)