# This tool is written to remove duplicate lines from a list of strings
# I won't take credit for writing this, because I haven't, I found it somewhere in stackoverflow and I don't remember

lines_seen = set()
outfile = open("sorted.txt", "w")
for line in open("list.txt", "r"):
    if line not in lines_seen:
        outfile.write(line)
        lines_seen.add(line)
outfile.close()