Thank you dherrada. This version includes defaults for bitmap and palette parameter so that user code does not have to supply them.
To use in CircuitPython, simply install the [Adafruit CircuitPython bundle](https://circuitpython.org/libraries).
To use in CPython, `pip3 install adafruit-circuitpython-imageload`.
Read the [docs](http://circuitpython.readthedocs.io/projects/imageload/en/latest/) for info on how to use it.