How to use the vcard.vcard_errors.VCardValueError function in vcard

>>> validate_language_tag('en')
    >>> validate_language_tag('-US') # Need primary tag # doctest: +IGNORE_EXCEPTION_DETAIL
    Traceback (most recent call last):
    VCardValueError: Invalid language (See RFC 1766 section 2 for details)
    String: -us
    >>> validate_language_tag('en-') # Can't end with dash # doctest: +IGNORE_EXCEPTION_DETAIL
    Traceback (most recent call last):
    VCardValueError: Invalid language (See RFC 1766 section 2 for details)
    String: en-
    >>> validate_language_tag('en-US')

    """
    text = text.lower()  # Case insensitive

    if VALID_LANGUAGE_TAG.match(text) is None:
        raise VCardValueError(NOTE_INVALID_LANGUAGE_VALUE, {'String': text})

... # doctest: +ELLIPSIS +IGNORE_EXCEPTION_DETAIL
    Traceback (most recent call last):
    VCardValueError: Invalid time zone ...
    String: 01:
    >>> validate_time_zone('01:1') # Need preceding zero
    ... # doctest: +ELLIPSIS +IGNORE_EXCEPTION_DETAIL
    Traceback (most recent call last):
    VCardValueError: Invalid time zone ...
    """
    if not VALID_TIMEZONE.match(text):
        raise VCardValueError(NOTE_INVALID_TIME_ZONE, {'String': text})

    try:
        isodate.parse_tzinfo(text.replace('+', 'Z+').replace('-', 'Z-'))
    except (isodate.ISO8601Error, ValueError):
        raise VCardValueError(NOTE_INVALID_TIME_ZONE, {'String': text})

    @param text: Single parameter value

    Examples:
    >>> validate_uri('http://example.org/')
    >>> validate_uri('http\\://example.org/') # doctest: +ELLIPSIS +IGNORE_EXCEPTION_DETAIL
    Traceback (most recent call last):
    VCardValueError: Invalid URI ...
    String: http\\://example.org/
    >>> validate_uri('http:') # doctest: +ELLIPSIS +IGNORE_EXCEPTION_DETAIL
    Traceback (most recent call last):
    VCardValueError: Invalid URI ...
    String: http:
    """
    parts = six.Module_six_moves_urllib.parse.urlparse(text)
    if parts[0] == '' or (parts[1] == '' and parts[2] == ''):
        raise VCardValueError(NOTE_INVALID_URI, {'String': text})

def get_vcard_property_sub_values(value_string):
    """
    Get the parts of the value.

    @param value_string: Single value string
    @return: List of values (RFC 2426 page 9)
    """
    sub_values = vcard_utils.split_unescaped(value_string, ',')

    # Validate string
    for sub_value in sub_values:
        if not re.match(u'^[{0}]*$'.format(re.escape(VALUE_CHARACTERS)), sub_value):
            raise VCardValueError('{0}: {1}'.format(NOTE_INVALID_SUB_VALUE, sub_value), {})

    return sub_values

def validate_date(text):
    """
    Based on http://tools.ietf.org/html/rfc2425#section-5.8.4 and the fact
    that it specifies a subset of ISO 8601.

    @param text: String
    """
    if VALID_DATE.match(text) is None:
        raise VCardValueError(NOTE_INVALID_DATE, {'String': text})

    try:
        isodate.parse_date(text)
    except (isodate.ISO8601Error, ValueError):
        raise VCardValueError(NOTE_INVALID_DATE, {'String': text})

def validate_date(text):
    """
    Based on http://tools.ietf.org/html/rfc2425#section-5.8.4 and the fact
    that it specifies a subset of ISO 8601.

    @param text: String
    """
    if VALID_DATE.match(text) is None:
        raise VCardValueError(NOTE_INVALID_DATE, {'String': text})

    try:
        isodate.parse_date(text)
    except (isodate.ISO8601Error, ValueError):
        raise VCardValueError(NOTE_INVALID_DATE, {'String': text})