Lightparam

Another attempt at parameters in Python, built to satisfy requirements of Stytra:

• Automatic GUI building
• Global parameter tree structure
• Parametrized functions
• Saving and restoring

Basic classes

Param

The basic parameter object. The value can be of any python type, although automatic GUI generation is supported for some:

int
float
lists
str
range (a tuple of floats)
folder

Parametrized

Class where some parameters are attributes. Their values are acessible with the dot syntax, and the parameter objects themselves thorugh the params attribute:

class MyParametrized(Parametrized):
    def __init__(self):
        super().__init__()
        self.x = Param(1.0, (0.0, 2.0))
        
>>> o = MyParametrized()
>>> o.x
1.0
>>> o.params.x.limits
(0.0, 2.0)

ParameterTree

GUI building

Currently, automatic GUI generation is supported for PyQt5 and for ipywidget support.

Parametrizing functions

Arguments of functions can be parametrized by annotaning their arguments using the Python 3 function annotation syntax. For example:

def func(x : Param(1.0)):
    print(x)

one can easily make parametrized objects out of it

p = Parametrized(params=func)