def _identifier_split(identifier):
    'Return (name, start, end) string tuple from an identifier (PRIVATE).'
    (id, loc, strand) = identifier.split(':')
    (start, end) = map(int, loc.split('-'))
    start -= 1
    return (id, start, end, strand)
Return (name, start, end) string tuple from an identifier (PRIVATE).
def _identifier_split(identifier):
    
    (id, loc, strand) = identifier.split(':')
    (start, end) = map(int, loc.split('-'))
    start -= 1
    return (id, start, end, strand)