konval.typeval.ToStr

Class ToStr

object --+ | basevalidator.BaseValidator --+ | ToType --+ | ToStr

Convert a value to a string.

While you could just use str, this throws a much nicer error message.

For example:

>>> v = ToStr() >>> v(1.0) '1.0' >>> v('foo') 'foo'

Instance Methods

[hide private]

__init__(self)
Class c'tor, accepting a type.

source code

Inherited from ToType: convert_value, make_conversion_error_msg

Inherited from basevalidator.BaseValidator: __call__, convert, make_validation_error_msg, raise_conversion_error, raise_validation_error, validate, validate_value

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

Properties

[hide private]

Inherited from object: __class__

init(self)
(Constructor)

source code

Class c'tor, accepting a type.

For example:

>>> v = ToType(int, type_name='an integer')
>>> v(1)
1
>>> v(2.3)
2
>>> v('foo')
Traceback (most recent call last):
...
ValueError: can't convert 'foo' to an integer
>>> v = ToType(float)
>>> v('foo')
Traceback (most recent call last):
...
ValueError: can't convert 'foo' to float

Parameters:

to_type - A class constructor (old or new style), built-in type, or function that can be called to convert a type and will throw if it fails.
type_name - A name for the type produced. If not supplied, it will be extracted from to_type if possible.

Overrides: object.__init__

(inherited documentation)

Class ToStr

__init__(self) (Constructor)

init(self)
(Constructor)