Outputs rainbow text

lolcat.py

import sys
import colorsys

# lolcat in python, it takes the last argument given and then prints it out in rainbow text

def main(argv):
    hue =0.0
    str = argv[len(argv)-1]
    out=""
    for i in range(0,len(str)):
        r,g,b=colorsys.hsv_to_rgb(hue,1,1)
        out += f"\x1b[38;2;{int(r*255)};{int(g*255)};{int(b*255)}m{str[i]}"
        hue+=1/100
        if hue > 1.0:
            hue = 0.0
    out += f"\x1b[0;m"
    print(out)

main(sys.argv)