hi, I tried to read a .bam file, by uncompress the file with bgzf module provided by biopython but only some indexed parts are readable. I saw that the file is build by different compressed block, but how to read it with biopython ?

from Bio import SeqIO
import gzip
from Bio import bgzf
import struct
import gzip
handle = bgzf.BgzfReader("Example.bam", "r")
print handle.read(100)

Thanks for your help !!