[Biopython-dev] derive from Seq
MatatTHC at gmx.de
Tue Apr 22 16:49:02 UTC 2008
Despite of other messages on this list someone needs circular sequences
.. me :). I thought that the best way to get a circular behaviour is to make a derived class in order to keep all the nice features of Seq.
So I've started to write a derived class which overwrites some of the methods from the Seq - especially __getitem__ - and I run quite fast into problems. E.g. the complement method returns a Seq object.
The desired behaviour would be to return an instance of my derived class
.. This could be done easily with self.__class__(s, self.alphabet).
Unfortunately the __init__ method of my derived class has a third
parameter (with default value) which sets the sequence to circular / linear. This could be done with copy or clone methods.
So you see that there are problems when deriving from the Seq class. What
is the best (or a good) strategy for deriving classes from Seq?
Psssst! Schon vom neuen GMX MultiMessenger gehört?
Der kann`s mit allen: http://www.gmx.net/de/go/multimessenger
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