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Refactor __init__.py according to modern Python and best practices

2

I see some issues with the main `__init__.py` file that makes using Param and contributing to it harder than it has to be. - The`__init__.py` has grown to +2000 lines....

MarcSkovMadsen

Make tooltips useful in a modern IDEs

4

## Request Make sure that tooltips shown in VS Code, PyCharm and other modern IDEs are useful. ## Motivation If tooltips are empty, not meaningful or not specific, it makes...

MarcSkovMadsen

## Request Add *Developer Guide* to Param web site similar to Panel and hvPlot ## Motivation I would like to contribute to Param. The first thing I need to know...

MarcSkovMadsen

Add concept of parameter preprocessor or allow invalidating watch events

1

In https://github.com/pyviz/param/pull/323 we addressed an issue with a pattern of using watch callbacks to validate and set parameter values. The concrete example was a watch callback which clipped a parameter...

philippjfr

Setting default value of 'name' in a Parameterized class doesn't work

6

#### ALL software version info ``` channels: - conda-forge - defaults dependencies: - ipykernel=6.15.1 - ipython=8.4.0 - jupyter_client=7.3.4 - jupyter_core=4.10.0 - libcxx=14.0.6 - param=1.12.2 - python=3.10.5 - traitlets=5.3.0 ``` -...

chbrandt

#### ALL software version info https://gist.github.com/tomascsantos/458bcabe14efa26e46f03d5f4544e603 #### Description of expected behavior and the observed behavior From: https://pyviz-dev.github.io/param/user_guide/Parameter_Types.html#selectors > Otherwise, the objects should be provided as a name:value dictionary, where the...

tomascsantos

# 🚀 Feature Document how to create a `Parameterized` Singleton. ## Motivation I'm trying to create an `AppStateWatcher` here https://github.com/Lightning-AI/lightning/pull/13531. For efficiency reasons only one instance should be created. To...

MarcSkovMadsen

Callback triggered when depending on a subobject not declared

12

From https://github.com/holoviz/panel/issues/3580 I didn't expect that setting the `test_param` attribute in the example below would trigger the callback, but it does. ```python import param class Sub(param.Parameterized): s = param.String() class...

maximlt

#### ALL software version info `param` 1.12.2 + https://github.com/holoviz/param/pull/638 Python 3.11.0b3 (pre-release) #### Description of expected behavior and the observed behavior Tests fail on Python 3.11.0b3 because the new async...

musicinmybrain

WIP: raise ValueError if param.depends is used without arguments or without defining dependencies

1

To raise an error in these cases where the `depends` decorator is used either without arguments or without providing any dependencies (same on methods on Parameterized classes). ```python @param.depends def...

maximlt