[Biopython-dev] [RFC, PATCH] Bio.Iter

[Yves Bastide]

Jeffrey Chang wrote:
> Hi Yves,
> 
> Does this not do the same thing?
>   b_iterator = iter(NCBIStandalone.Iterator(blast_out, b_parser).next, 
> None)

Yep -- but I posted my message before thinking about it :)


> 
> It's a little uglier than your solution.  However, the best would be to 
> make NCBIStandalone.Iterator a true iterator.  Could you also try 
> adding, to the NCBIStandalone.Iterator class the method:
> 
>   def __iter__(self):
>     return iter(self.next, None)
> 
> I have not tested it.  However, if it works correctly for you, please 
> let me know and I can add it to the distribution.

It does. Thanks!

> 
> Jeff
> 
> 
> 
-------------- next part --------------
--- /local/lib/python2.2/site-packages/Bio/Blast/NCBIStandalone.py	2003-09-03 10:19:40.000000000 +0200
+++ Bio/Blast/NCBIStandalone.py	2003-09-10 20:34:10.000000000 +0200
@@ -33,6 +33,7 @@ blastpgp        Execute blastpgp.
 
 """
 
+from __future__ import generators
 import os
 import re
 
@@ -1331,6 +1332,9 @@ class Iterator:
             return self._parser.parse(File.StringHandle(data))
         return data
 
+    def __iter__(self):
+        return iter(self.next, None)
+
 def blastall(blastcmd, program, database, infile, **keywds):
     """blastall(blastcmd, program, database, infile, **keywds) ->
     read, error Undohandles