def fetch_ensembl_release(path=None, release='75'):
"""Get pyensembl genome files"""
from pyensembl import Genome, EnsemblRelease
#this call should download the files
genome = EnsemblRelease(release, species='human')
genome.download(overwrite=False)
genome.index(overwrite=False)
genome.cache_directory_path = path
print('pyensembl genome files cached in %s' % genome.cache_directory_path)
#run_pyensembl_install()
return
