PyCogent

EFetch should support the "from" "to" arguments to limit the part of the
downloaded file. This is useful when working with contigs.

to fix:
in class EFetch(UrlGetter):
change PrintedFields to:
PrintedFields = dict.fromkeys(['db', 'rettype', 'retmode', 'query_key',
'WebEnv', 'retmax', 'retstart', 'id', 'tool', 'email', 'from', 'to'])

Marcin