Hello, I'm trying to use BioPython in an External Method but it return "ImportError: cannot import name FastaReader" (and others functions). I check some "tricks" but nothing change. Then I modify my external method to know what happening with the symbol table: The program: """ def SequenceRead(SequenceString): import StringIO import Bio.SeqIO.FASTA return vars(Bio.SeqIO.FASTA).keys() """ When I run it at command line the function return: """ ['Bio', 'string', 'Seq', 'FastaReader', '__builtins__', '__file__', 'SeqRecord', 'FastaWriter', '__name__', 'os', '__doc__'] """ That's ok. But When I run it in Zope the function return: """ ['Bio', 'string', 'Seq', '__builtins__', '__name__', '__file__', 'os', '__doc__'] """ The function lost the "FastaReader", "SeqRecord" and "FastaWriter" in the symbol table!!! What's wrong? Must I change something to change them to public functions? Thxs, Cristian. -- Lic. Cristian S. Rocha. <crocha@dc.uba.ar> Departamento de Computacin. FCEyN. UBA. Pabellon I. Cuarto 9. Ciudad Universitaria. (1428) Buenos Aires. Argentina. Tel: +54-11-4576-3390/96 int 714 Tel/Fax: +54-11-4576-3359 Cel: 15-5-607-9192