features spanning origin

[Mark Budde]

There is a bug when features spanning the origin (which have end before they begin) are digest and religated. This creates a duplicate feature which encompasses most of the plasmid. The bug stems from Dseqrecord._multiply_circular. It can be fixed by adding this line 

        if new_feature.location.end < new_feature.location.start:

            new_feature.location = FeatureLocation(new_feature.location.start, new_feature.location.end + len(self))

prior to this line:

        new_features.append(new_feature)

I'm not sure how this would work with compound features, but it fixes the bug for normal features.

-Mark

[Björn Johansson]

Was this fixed for you? I am working on a new release where I try to get complete test coverage.

I am working to improve how Dseqs and Dseqrecords are digested by restriction enzymes and how features are handled.