#!/usr/bin/env python3 with open("/home/pengu/test/rust-dev/gof-rs/presets/patterns-striped.txt", "r") as file: with open("./new.txt", "w") as newfile: cnt = 0 for line in file.readlines(): if line != '\n': if cnt > 0: newfile.write("\n") if len(line) < 73 and line != '\n': txt = line.rstrip().center(72, ".") + '\n' newfile.write(txt) cnt = 0 if line == '\n': cnt += 1