def __call__(self, *args):
"""
Create a Sequence using a sequential ExecutionEngine.
If args has more than one argument then the argument list becomes the sequence.
If args[0] is primitive, a sequence wrapping it is created.
If args[0] is a list, tuple, iterable, or Sequence it is wrapped as a Sequence.
:param args: Sequence to wrap
:return: Wrapped sequence
"""
# pylint: disable=no-self-use
engine = ExecutionEngine()
if len(args) == 0:
raise TypeError(
"seq() takes at least 1 argument ({0} given)".format(
len(args)))
elif len(args) > 1:
return Sequence(list(args), engine=engine)
elif is_primitive(args[0]):
return Sequence([args[0]], engine=engine)
else:
return Sequence(args[0], engine=engine)
def __init__(self, prior_lineage=None, engine=None):
"""
Construct an empty lineage if prior_lineage is None or if its not use it as the list of
current transformations
:param prior_lineage: Lineage object to inherit
:return: new Lineage object
"""
self.transformations = [] if prior_lineage is None else list(prior_lineage.transformations)
self.engine = ((engine or ExecutionEngine()) if prior_lineage is None
else prior_lineage.engine)
def __call__(self, *args, **kwargs):
"""
Create a Sequence using a sequential ExecutionEngine.
If args has more than one argument then the argument list becomes the sequence.
If args[0] is primitive, a sequence wrapping it is created.
If args[0] is a list, tuple, iterable, or Sequence it is wrapped as a Sequence.
:param args: Sequence to wrap
:return: Wrapped sequence
"""
# pylint: disable=no-self-use
engine = ExecutionEngine()
return self._parse_args(args, engine, "seq() takes at least 1 argument ({0} given)")