[PYTHON] Dynamically load the module.

def lazy_loader(name):
    """Loading function, class and module lazy."""
    try:
        mod = __import__(name)
    except:
        mod_list = name.split('.')
        mod = __import__('.'.join(mod_list[:-1]))

    components = name.split('.')
    for comp in components[1:]:
        mod = getattr(mod, comp)
    return mod

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