alphatwirl.selection.modules.LambdaStr.LambdaStr

class alphatwirl.selection.modules.LambdaStr.LambdaStr(lambda_str, name=None)

select events to which a lambda returns True.

A lambda should be given as a string to __init__ and will be evaluated in begin(). This is because a lambda is not picklable.

In the multiprocessing mode, __init__() is called in the main process. Then, the instance will be pickled and sent to subprocesses. begin() will be called in the subprocesses.

__init__(lambda_str, name=None)

Initialize self. See help(type(self)) for accurate signature.

Methods

__init__(lambda_str[, name])	Initialize self.
begin(event)
end()
event(event)