#!/usr/bin/env python3
"""
Convert a GFA file to the other specification version
"""
import sys
import os
import gfapy
import argparse
op = argparse.ArgumentParser(description=__doc__)
op.add_argument("filename")
op.add_argument('--version', action='version', version='%(prog)s 1.0')
opts = op.parse_args()
gfa = gfapy.Gfa.from_file(opts.filename)
try:
for line in gfa.lines:
if gfa.version == "gfa1":
print(line.to_gfa2_s())
else:
converted_line = line.to_gfa1_s()
if (converted_line):
print(converted_line)
except gfapy.Error as err:
sys.stderr.write(str(err))
sys.exit(1)