tsv write and read using csv package.

write_read_tsv.py

import os
from collections import namedtuple
from ast import literal_eval
from os.path import dirname

export_path = "path/to/export"

# Read & Write using native python
# write tsv
os.makedirs(dirname(export_path), exist_ok=True)
wr = csv.writer(open(export_path, 'wt'), delimiter='\t')
for candi in candidate_list:
    wr.writerow([candi, encoder.get_vector(candi).tolist()])

# read tsv
elem = namedtuple('query_space', "query embedding")
rdr = csv.reader(open(export_path, 'rt'), delimiter='\t')
r = [elem(row[0], literal_eval(row[1])) for row in rdr]