Merging PR_218 openai_rev package with new streamlit chat app

venv/lib/python3.9/site-packages/validators/card.py

@@ -0,0 +1,183 @@
+import re
+
+from .utils import validator
+
+
+@validator
+def card_number(value):
+    """
+    Return whether or not given value is a valid card number.
+
+    This validator is based on Luhn algorithm.
+
+    .. luhn:
+       https://github.com/mmcloughlin/luhn
+
+    Examples::
+
+        >>> card_number('4242424242424242')
+        True
+
+        >>> card_number('4242424242424241')
+        ValidationFailure(func=card_number, args={'value': '4242424242424241'})
+
+    .. versionadded:: 0.15.0
+
+    :param value: card number string to validate
+    """
+    try:
+        digits = list(map(int, value))
+        odd_sum = sum(digits[-1::-2])
+        even_sum = sum([sum(divmod(2 * d, 10)) for d in digits[-2::-2]])
+        return (odd_sum + even_sum) % 10 == 0
+    except ValueError:
+        return False
+
+
+@validator
+def visa(value):
+    """
+    Return whether or not given value is a valid Visa card number.
+
+    Examples::
+
+        >>> visa('4242424242424242')
+        True
+
+        >>> visa('2223003122003222')
+        ValidationFailure(func=visa, args={'value': '2223003122003222'})
+
+    .. versionadded:: 0.15.0
+
+    :param value: Visa card number string to validate
+    """
+    pattern = re.compile(r'^4')
+    return card_number(value) and len(value) == 16 and pattern.match(value)
+
+
+@validator
+def mastercard(value):
+    """
+    Return whether or not given value is a valid Mastercard card number.
+
+    Examples::
+
+        >>> mastercard('5555555555554444')
+        True
+
+        >>> mastercard('4242424242424242')
+        ValidationFailure(func=mastercard, args={'value': '4242424242424242'})
+
+    .. versionadded:: 0.15.0
+
+    :param value: Mastercard card number string to validate
+    """
+    pattern = re.compile(r'^(51|52|53|54|55|22|23|24|25|26|27)')
+    return card_number(value) and len(value) == 16 and pattern.match(value)
+
+
+@validator
+def amex(value):
+    """
+    Return whether or not given value is a valid American Express card number.
+
+    Examples::
+
+        >>> amex('378282246310005')
+        True
+
+        >>> amex('4242424242424242')
+        ValidationFailure(func=amex, args={'value': '4242424242424242'})
+
+    .. versionadded:: 0.15.0
+
+    :param value: American Express card number string to validate
+    """
+    pattern = re.compile(r'^(34|37)')
+    return card_number(value) and len(value) == 15 and pattern.match(value)
+
+
+@validator
+def unionpay(value):
+    """
+    Return whether or not given value is a valid UnionPay card number.
+
+    Examples::
+
+        >>> unionpay('6200000000000005')
+        True
+
+        >>> unionpay('4242424242424242')
+        ValidationFailure(func=unionpay, args={'value': '4242424242424242'})
+
+    .. versionadded:: 0.15.0
+
+    :param value: UnionPay card number string to validate
+    """
+    pattern = re.compile(r'^62')
+    return card_number(value) and len(value) == 16 and pattern.match(value)
+
+
+@validator
+def diners(value):
+    """
+    Return whether or not given value is a valid Diners Club card number.
+
+    Examples::
+
+        >>> diners('3056930009020004')
+        True
+
+        >>> diners('4242424242424242')
+        ValidationFailure(func=diners, args={'value': '4242424242424242'})
+
+    .. versionadded:: 0.15.0
+
+    :param value: Diners Club card number string to validate
+    """
+    pattern = re.compile(r'^(30|36|38|39)')
+    return (
+        card_number(value) and len(value) in [14, 16] and pattern.match(value)
+    )
+
+
+@validator
+def jcb(value):
+    """
+    Return whether or not given value is a valid JCB card number.
+
+    Examples::
+
+        >>> jcb('3566002020360505')
+        True
+
+        >>> jcb('4242424242424242')
+        ValidationFailure(func=jcb, args={'value': '4242424242424242'})
+
+    .. versionadded:: 0.15.0
+
+    :param value: JCB card number string to validate
+    """
+    pattern = re.compile(r'^35')
+    return card_number(value) and len(value) == 16 and pattern.match(value)
+
+
+@validator
+def discover(value):
+    """
+    Return whether or not given value is a valid Discover card number.
+
+    Examples::
+
+        >>> discover('6011111111111117')
+        True
+
+        >>> discover('4242424242424242')
+        ValidationFailure(func=discover, args={'value': '4242424242424242'})
+
+    .. versionadded:: 0.15.0
+
+    :param value: Discover card number string to validate
+    """
+    pattern = re.compile(r'^(60|64|65)')
+    return card_number(value) and len(value) == 16 and pattern.match(value)