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#!/usr/bin/env python3
"""
Generate random sequences in FASTA format
"""
import sys
from random import choice, randint
from sqt import HelpfulArgumentParser
__author__ = "Marcel Martin"
def add_arguments(parser):
arg = parser.add_argument
arg("--minimum-length", "-m", type=int, default=20)
arg("--maximum-length", "-M", type=int, default=50)
arg("n", type=int, help="Number of sequences to generate")
def main(args=None):
if args is None:
parser = HelpfulArgumentParser(description=__doc__)
add_arguments(parser)
args = parser.parse_args()
ALPHABET = 'ACGT'
for i in range(args.n):
l = randint(args.minimum_length, args.maximum_length)
seq = ''.join(choice('ACGT') for _ in range(l))
print(">seq{0}\n{1}".format(i+1, seq))
if __name__ == '__main__':
main()
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