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📁 ..
📄 __init__.py(1.86 KB)
📁 __pycache__
📄 _extremes.py(1.01 KB)
📄 _tld.txt(9.4 KB)
📄 between.py(2.39 KB)
📄 btc_address.py(1.62 KB)
📄 card.py(5.63 KB)
📄 country.py(14.57 KB)
📄 cron.py(2.23 KB)
📄 domain.py(2.4 KB)
📄 email.py(2.72 KB)
📄 encoding.py(1.34 KB)
📄 finance.py(3.22 KB)
📄 hashes.py(3.21 KB)
📄 hostname.py(4.05 KB)
📁 i18n
📄 iban.py(1.05 KB)
📄 ip_address.py(4.34 KB)
📄 length.py(1.45 KB)
📄 mac_address.py(865 B)
📄 py.typed(0 B)
📄 slug.py(750 B)
📄 uri.py(1.78 KB)
📄 url.py(7.23 KB)
📄 utils.py(3.1 KB)
📄 uuid.py(1.04 KB)

Editing: finance.py

"""Finance."""

from .utils import validator

def _cusip_checksum(cusip: str):
    check, val = 0, None

for idx in range(9):
        c = cusip[idx]
        if c >= "0" and c <= "9":
            val = ord(c) - ord("0")
        elif c >= "A" and c <= "Z":
            val = 10 + ord(c) - ord("A")
        elif c >= "a" and c <= "z":
            val = 10 + ord(c) - ord("a")
        elif c == "*":
            val = 36
        elif c == "@":
            val = 37
        elif c == "#":
            val = 38
        else:
            return False

if idx & 1:
            val += val

check = check + (val // 10) + (val % 10)

return (check % 10) == 0

def _isin_checksum(value: str):
    check, val = 0, None

for idx in range(12):
        c = value[idx]
        if c >= "0" and c <= "9" and idx > 1:
            val = ord(c) - ord("0")
        elif c >= "A" and c <= "Z":
            val = 10 + ord(c) - ord("A")
        elif c >= "a" and c <= "z":
            val = 10 + ord(c) - ord("a")
        else:
            return False

if idx & 1:
            val += val

return (check % 10) == 0

@validator
def cusip(value: str):
    """Return whether or not given value is a valid CUSIP.

Checks if the value is a valid [CUSIP][1].
    [1]: https://en.wikipedia.org/wiki/CUSIP

Examples:
        >>> cusip('037833DP2')
        True
        >>> cusip('037833DP3')
        ValidationFailure(func=cusip, ...)

Args:
        value: CUSIP string to validate.

Returns:
        (Literal[True]): If `value` is a valid CUSIP string.
        (ValidationError): If `value` is an invalid CUSIP string.
    """
    return len(value) == 9 and _cusip_checksum(value)

@validator
def isin(value: str):
    """Return whether or not given value is a valid ISIN.

Checks if the value is a valid [ISIN][1].
    [1]: https://en.wikipedia.org/wiki/International_Securities_Identification_Number

Examples:
        >>> isin('037833DP2')
        True
        >>> isin('037833DP3')
        ValidationFailure(func=isin, ...)

Args:
        value: ISIN string to validate.

Returns:
        (Literal[True]): If `value` is a valid ISIN string.
        (ValidationError): If `value` is an invalid ISIN string.
    """
    return len(value) == 12 and _isin_checksum(value)

@validator
def sedol(value: str):
    """Return whether or not given value is a valid SEDOL.

Checks if the value is a valid [SEDOL][1].
    [1]: https://en.wikipedia.org/wiki/SEDOL

Examples:
        >>> sedol('2936921')
        True
        >>> sedol('29A6922')
        ValidationFailure(func=sedol, ...)

Args:
        value: SEDOL string to validate.

Returns:
        (Literal[True]): If `value` is a valid SEDOL string.
        (ValidationError): If `value` is an invalid SEDOL string.
    """
    if len(value) != 7:
        return False

weights = [1, 3, 1, 7, 3, 9, 1]
    check = 0
    for idx in range(7):
        c = value[idx]
        if c in "AEIOU":
            return False

val = None
        if c >= "0" and c <= "9":
            val = ord(c) - ord("0")
        elif c >= "A" and c <= "Z":
            val = 10 + ord(c) - ord("A")
        else:
            return False
        check += val * weights[idx]

return (check % 10) == 0

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