fasta转成txt

fasta2txt -i input.fa -o out.txt

#!/usr/bin/env python
# -*- coding: utf-8 -*-
__author__ = "Sheng-Wei Ma"

import click   #需要你的电脑安装click包

@click.command()
@click.option('-i', type=click.File('rb'), help='fasta file')
@click.option('-o', type=click.File('w'), help='txt file')

def fasta2txt(i, o):
for line in i:
if line.startswith(">"):
lin = line.strip().split()[0][1:]
o.writelines('\n' + lin + '\t')
else:
o.writelines(line.strip())

if __name__=='__main__':
fasta2txt()