obrazky.py

# Generator for: https://youtu.be/xeL_Ifngcbo
# Save student code as obrazky/*.py and run this

import sys
import importlib
from pathlib import Path
import turtle
import time
import itertools
import dataclasses
import random

turtle.speed(0)
turtle.delay(0)
turtle.setup(1920, 1080)

# Monkeypatch turtle to disable functions unnecessary for "slideshow"
turtle.exitonclick = print
turtle.done = print
turtle.speed = lambda speed: None

# hotfix
_left = turtle.left
turtle.left = lambda angle: _left(angle % 360)

# Generator for randomized names
random.seed(1)
consonants = 'HKRDTNCJBFLMPSVZ'
vowels = 'AEIOU'
syllables = list(itertools.product(*(consonants, vowels)*3))
random.shuffle(syllables)
syllables = iter(syllables)

@dataclasses.dataclass
class Entry:
    name: str
    path: Path
    code: object

entries = []

for path in sorted(Path('obrazky').glob('*.py')):
    modcontent = path.read_text()
    sig_line, _, _ = modcontent.partition('\n')

    globs = {}
    # Overcomplicated code to get author's name...
    if sig_line.startswith('SIG'):
        exec(sig_line, globs)
    sig = globs.get('SIG')
    if sig:
        name = globs['SIG']
    else:
        name = f'Želví obrázek {"".join(next(syllables))}'
    code = compile(modcontent, str(path), 'exec')

    entries.append(Entry(
        name,
        path,
        code,
    ))

for entry in entries:
    print(entry.name, entry.path)

input('PRESS ENTER TO START...')

start = time.time()

for i in range(10):

    random.shuffle(entries)
    for entry in entries:
        now = int(time.time() - start)
        min, sec= divmod(now, 60)
        print(f"{min:02}:{sec:02} {entry.name}")

        turtle.title(entry.name)

        turtle.reset()
        turtle.speed(0)
        turtle.shape('turtle')
        turtle.bgcolor("white")
        turtle.delay(2)

        globs = {'print': lambda *a,**ka: None, '__file__': path.name}
        exec(entry.code, globs)

        time.sleep(1)
        turtle.hideturtle()
        time.sleep(1)
        turtle.title('...')
        turtle.title('…')
        time.sleep(1)

    print('------')