[BioPython] Primer3Parser

[Brad Chapman]

Hi Larry;

> I am running Primer3 on a large number of sequences, using mostly 
> default values.  In most instances, I get the default number of primers 
> (5) returned to an output file.  This writes the primers with 4 blank lines 
> at the end.  When I parse this with using Primer3Parser from Bio.Emboss.Primer,
> all is fine.  In some instances though fewer than 5 primers are returned and 
> there are more than 4 blank lines at the end of the file.  This causes 
> Primer3Parser to crash.
> 
> I was able to fix the problem, but not sure if it is the best way.  I 
> modified the Martel definitions for primer3 output contained in 
> Bio.Emboss.primer3_format.py:

Thanks for the heads up. I just committed your changes to CVS. The
Primer3Parser is definitely not the best piece of code I ever wrote
and hasn't been tested extensively enough with various outputs. Feel
free to submit any more patches for problems you find.

Thanks much!

Brad