Parse the Feature Table format of Entrez Direct E-utilities.

ft.py

def parse_coor(coor):
    return int(coor[0].lstrip(">").lstrip("<")), int(coor[1].lstrip(">").lstrip("<"))

def parse_ft(file):
    acc, feat, coors, anno = None, None, None, None
    for line in map(str.rstrip, file):
        if line.startswith(">Feature"):
            acc = line[9:].split("|", maxsplit=2)[1].split(".")[0]
        elif acc and line:
            if not line[0].isspace():
                tokens = line.split("\t")
                if len(tokens) == 3:
                    yield from ((acc, feat, *parse_coor(coor), anno) for coor in coors) if coors else ()
                    feat, coors, anno = tokens[-1], [tokens[:-1]], {}
                elif len(tokens) == 2:
                    coors += [tokens]
            else:
                tokens = line.lstrip().split(maxsplit=1)
                key, val = tokens * (1 + (len(tokens) == 1))
                anno[key] = val