def __init__(self, data=None, Info=None, **kwargs):
"""Intializes BaseUsage with data, either sequence or dict of freqs.
Ignores additional kwargs (e.g. to support copy).
Makes the _handler for delegator accessible with the name Info.
"""
if Info is None:
if hasattr(data, 'Info'):
Info = data.Info
else:
Info = InfoClass()
Delegator.__init__(self, Info)
Freqs.__init__(self, data or [], **kwargs)
def Rna(x, Info=None):
if isinstance(x, list):
x = ''.join(x)
if Info is None:
Info = {}
return RnaSequence(x.upper().replace('T','U'), Info=InfoClass(Info))