def next_exon(variant_position, coding_exon_starts):
    """
    get location of next coding exon after variant
    :param coding_exon_starts: coding exon start positions, Pandas Series.
    :param variant_position: chromosomal position, int
    :return: chromosomal position of start of next coding exon, int
    """
    greater_than_var = [x for x in coding_exon_starts if x > variant_position]
    if not greater_than_var:
        return False
    else:
        next_coding_exon_pos = min(greater_than_var)
        return next_coding_exon_pos