I am working on a project that provides a high level interface to hdf5 files by implementing a thin wrapper around h5py. I would like to generalize the project so the same API can be used with other formats, like netcdf or ascii files. The format specific code exists in File, Group and Dataset classes, which I could reimplement for each format. But there are other classes deriving from Group and Dataset which do not contain any format-specific code, and I would like to find a way to implement the functionality once and apply uniformly across supported formats. This is really abstract, but I was thinking of something along the lines of:
format1.Group # implementation of group in format1 format2.Group # ... Base.DerivedGroup # base implementation of DerivedGroup, not directly useful format1.DerivedGroup = Base.DerivedGroup(format1.Group) # useful format2.DerivedGroup = Base.DerivedGroup(format2.Group) # useful Could anyone please offer a comment, is this an appropriate use of metaclassing, or is there maybe an easier/better alternative? -- http://mail.python.org/mailman/listinfo/python-list
