A Python Poem

poem.py

import math
import time


msg1 = 'I am a strange loop'
msg2 = 'I am a strange loop'
width = 25


def recurse(t):
    x1 = math.floor(math.sin(t) * width + width)
    x2 = math.floor(math.cos(t) * width + width)

    j = max(len(msg1), len(msg2))

    out1 = f'{" " * x1}{msg1}'.ljust(width * 2 + j, ' ')
    out2 = f'{" " * x2}{msg2}'.ljust(width * 2 + j, ' ')

    out = ""
    for ch1, ch2 in zip(out1, out2):
        if ch1 == ' ' and ch2 != ' ':
            out += ch2
        elif ch1 != ' ' and ch2 == ' ':
            out += ch1
        elif ch1 != ' ' and ch2 != ' ':
            out += '.'
        else:
            out += ' '

    print(out)
    print(out)


t = 1.5
while True:
    t += 0.03
    recurse(t)
    time.sleep(0.01)