[BioPython] Translation of ambiguous codons like NNN and TAN

[Martin MOKREJŠ]

Bruce Southey wrote:
>>   
> Yes because if you accept that 'NNN should be translated as X' then, by 
> the same reasoning, you must also accept 'TAN into X' as well as similar 
> cases.
> 
> For Biopython, there could a be flag or similar that causes translate() 
> to either return an error for any ambiguous codons or just continues on 
> using 'X'.

Yes, I agree as well. When translating ESTs I don't to get my code bailing
out due to sequencing errors. But I agree that usually people would like to
get an error instead.

Martin