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Utils

batched(iterable, n)

Batch data into tuples of length n. The last batch may be shorter. from https://docs.python.org/3/library/itertools.html#itertools-recipes

Source code in video_sampler/utils.py 
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def batched(iterable, n):
    """
    Batch data into tuples of length n. The last batch may be shorter.
    from https://docs.python.org/3/library/itertools.html#itertools-recipes
    """
    if n < 1:
        raise ValueError("n must be at least one")
    it = iter(iterable)
    while batch := tuple(islice(it, n)):
        yield batch

slugify(value, allow_unicode=False)

Taken from https://github.com/django/django/blob/master/django/utils/text.py Convert to ASCII if 'allow_unicode' is False. Convert spaces or repeated dashes to single dashes. Remove characters that aren't alphanumerics, underscores, or hyphens. Convert to lowercase. Also strip leading and trailing whitespace, dashes, and underscores.

Source code in video_sampler/utils.py 
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def slugify(value, allow_unicode=False):
    """
    Taken from https://github.com/django/django/blob/master/django/utils/text.py
    Convert to ASCII if 'allow_unicode' is False. Convert spaces or repeated
    dashes to single dashes. Remove characters that aren't alphanumerics,
    underscores, or hyphens. Convert to lowercase. Also strip leading and
    trailing whitespace, dashes, and underscores.
    """
    value = str(value)
    if allow_unicode:
        value = unicodedata.normalize("NFKC", value)
    else:
        value = (
            unicodedata.normalize("NFKD", value)
            .encode("ascii", "ignore")
            .decode("ascii")
        )
    value = re.sub(r"[^\w\s-]", "", value.lower())
    return re.sub(r"[-\s]+", "-", value).strip("-_")