requirements: goldilocks zone for pysam
requirements: goldilocks zone for pysam

We need pysam greater than 0.9 because of an issue with writing tags to a BAM
We need pysam >= 0.10.0 because of an issue with VCF header manipulation

We need pysam < 0.11.0 because the latest pysam causes previously working BAM writing code to fail.

So now I have the requirement pysam==0.10.0

sbg/Mitty,sbg/Mitty