Hello,

I am trying extract certain information from a gbk file I can extract the locus tag and the amino acid sequence however I am struggling to extract the gene location as it not in the same format in the file e.g.: `/locus_tag="NCTC86_00002"`

This is my script so far:

```py
from Bio import GenBank
from Bio import SeqIO

gbk_filename = "HS.gb"
faa_filename = "HS_converted.faa"

input_handle = open(gbk_filename, "r")
output_handle = open(faa_filename, "w")

for seq_record in SeqIO.parse(input_handle, "genbank"):
    print "Dealing with GenBank record %s" % seq_record.id
    for seq_feature in seq_record.features :
        if seq_feature.type=="CDS" :
            assert len(seq_feature.qualifiers['translation'])==1
            output_handle.write(">%s from %s\n%s\n" % (
                   seq_feature.qualifiers['locus_tag'][0],
                   seq_record.name,
                   seq_feature.qualifiers['translation'][0]))

output_handle.close()
input_handle.close()
print "Done"
```
Hi,

the SeqFeature objects have a "location" attribute that contains the start/stop position of the feature.

```py
from Bio import SeqIO

gbk_filename = "HS.gb"
faa_filename = "HS_converted.faa"

output_handle = open(faa_filename, "w")

for seq_record in SeqIO.parse(gbk_filename, "genbank") :
    print "Dealing with GenBank record %s" % seq_record.id
    for seq_feature in seq_record.features :
        if seq_feature.type=="CDS":
            assert len(seq_feature.qualifiers['translation'])==1
            output_handle.write(">%s from %s\n%s\n" % (
                   seq_feature.qualifiers['locus_tag'][0],
                   seq_record.name,
                   seq_feature.qualifiers['translation'][0]))
            print('Start: %d, Stop: %d, Strand: %d'%(int(seq_feature.location.start),
                                                     int(seq_feature.location.end),
                                                     seq_feature.strand))

output_handle.close()
print "Done"
```

Hope this helps