[Biopython-dev] Python 2.3
Jeffrey Chang
jchang at smi.stanford.edu
Tue Aug 5 13:14:04 EDT 2003
On Tuesday, August 5, 2003, at 12:32 AM, Andreas Kuntzagk wrote:
> Btw. I was thinking, is there a better way to use the Iterator-classes
> in the different Modules?
>
> Up to now, I do it like this:
> Parser = GenBank.RecordParser()
> File = open ("foo")
> Iterator = GenBank.Iterator(File,parser=Parser)
> while 1:
> record = it.next()
> if not record: break
> ...
>
> I think, nicer looking would be:
>
> File = GenBank.Flatfile("foo",Parser)
> for record in File:
> # work with record
Yes, that is much nicer. We can do that, now that we require Python
2.2. However, the code usually lags behind somewhat, because people
are reluctant to change working code (and update the documentation),
and break people's code. I did go back and add iterator support to the
Medline code, which introduced some bugs that are now fixed in the CVS.
:(
But yes, I think using iterators is cleaner, and should be done at some
point.
Jeff
More information about the Biopython-dev
mailing list