VCF parser based on htslib (Python 3)

 This modules allows fast parsing of VCF and BCF including region-queries
 with Python. This is essential for efficient analyses of nucleotide
 variation with Python on high-throughput sequencing data.
 .
 cyvcf2 is a cython wrapper around htslib. Attributes like
 variant.gt_ref_depths return a numpy array directly so they are
 immediately ready for downstream use.
 .
 This package installs the library for Python 3.