mmengine.utils.requires_package

mmengine.utils.requires_package(prerequisites)

A decorator to check if some python packages are installed.

Example

>>> @requires_package('numpy')
>>> func(arg1, args):
>>>     return numpy.zeros(1)
array([0.])
>>> @requires_package(['numpy', 'non_package'])
>>> func(arg1, args):
>>>     return numpy.zeros(1)
ImportError