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Edit: /opt/alt/python37/lib/python3.7/site-packages/validators/between.py

from .extremes import Max, Min
from .utils import validator

@validator
def between(value, min=None, max=None):
    """
    Validate that a number is between minimum and/or maximum value.

This will work with any comparable type, such as floats, decimals and dates
    not just integers.

This validator is originally based on `WTForms NumberRange validator`_.

.. _WTForms NumberRange validator:
       https://github.com/wtforms/wtforms/blob/master/wtforms/validators.py

Examples::

>>> from datetime import datetime

>>> between(5, min=2)
        True

>>> between(13.2, min=13, max=14)
        True

>>> between(500, max=400)
        ValidationFailure(func=between, args=...)

>>> between(
        ...     datetime(2000, 11, 11),
        ...     min=datetime(1999, 11, 11)
        ... )
        True

:param min:
        The minimum required value of the number. If not provided, minimum
        value will not be checked.
    :param max:
        The maximum value of the number. If not provided, maximum value
        will not be checked.

.. versionadded:: 0.2
    """
    if min is None and max is None:
        raise AssertionError(
            'At least one of `min` or `max` must be specified.'
        )
    if min is None:
        min = Min
    if max is None:
        max = Max
    try:
        min_gt_max = min > max
    except TypeError:
        min_gt_max = max < min
    if min_gt_max:
        raise AssertionError('`min` cannot be more than `max`.')

return min <= value and max >= value

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