Library of class property creation functions for type conversion and validation.
This package contains convenience functions for creating class properties with type conversion and validation characteristics in Python. While Python's lack of typecasting is certainly one of the features that make it an easy to learn and code language, there are certainly times when you might want to implement controls on the types of values a class property can assume. This package provides a few functions to hopefully handle those situations a little easier.
To provide an example, let's assume you have a property that you want to restrict
to boolean values. To do this normally, you would need to setup a property
manually by creating custom setter, getter, and deleter functions. With this
package, however, you can use the provided
bool_property function instead
import propy class Example(): bool_prop = propy.bool_property('bool_prop')
bool_property function creates the setter, getter, and deleter that you
would have needed to manually define. The
'bool_prop' name supplied to the
function is used to create a "private"
_bool_prop attribute behind the scenes,
then the "public"
bool_prop attribute simply calls the defined setter, getter,
and deleter to perform the respective action on that private attribute.
It's not a huge gain, but it reduces to a single line of code what may
have taken about 10 lines.
This package may be installed via pip:
pip install propy
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