python binding - TemplateHelper for custom node about openma HOT 3 OPEN

Is this inherited from BTK? FindChild() used to segfault in python when asked for the contents of a node that did not exist. I favoured GetChild()

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@marnunez There is a confusion between the method btk::MetaData::FindChild() and the method ma::Node::findChild(). Both are not related.

The latter is used to retrieve any child in a tree-like structure. For example, the output of the line my_root = ma::io::read('myfile.ext') is a tree structure like in the following image.

Usages of ma::Node::findChild() in Python to access data can be:

ts1 = root.findChild(ma.T_TimeSequence,‘my_ts1’);
evt1 = trial.findChild(ma.T_Event,‘my_evt1’);

The Python documentation is not available (every contribution is welcomed!). However, the C++ documentation ma::node::findChild may help you to understand its behaviour. The difference between both is the way to manage the template parameter. The first parameter of the Python method corresponds to the template parameter passed in C++. For example

// C++
auto ts1 = root.findChild<ma::TimeSequence>(‘my_ts1’);
# Python
ts1 = root.findChild(ma.T_TimeSequence,‘my_ts1’);

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@Alzathar Thanks for the clarification! This looks far more versatile. I'll play around some more as soon as I get the python bindings compiled.

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