joptional

pyoptional

Java-style Optionals for Python.

Installation

Simply install this package with your favourite package manager:

pip install pyoptional

or

poetry install pyoptional

Usage

The Optional class is a generic class that can be used to wrap a value that may or may not be None. Its functionality is roughly equivalent to Java's Optional class. For example:

Optional<String> opt = Optional.of("Hello, world!");
opt.ifPresent(System.out::println);

turns to the following Python code:

opt = Optional[str].of("Hello, world!")
opt.if_present(print)

Of course, type annotations in Python are optional (no pun intended), so you can simply write Optional.of("Hello, world!") if you prefer.