def _get_freq_label_by_year()

in src/smjsindustry/finance/utils.py [0:0]

• 7 lines of code
• 3 McCabe index (conditional complexity)

def _get_freq_label_by_year(date_value: str) -> str:
    """Gets frequency label for the date value which is aggregated by year.

    Args:
        date_value (str): The date value.

    Returns:
        str: The date value aggregated by year.
    """
    if bool(re.match(r"^\d{4}$", date_value)):
        return date_value
    if not bool(re.match(r"^\d{4}(-\d{1,2}){0,2}$", date_value)):
        raise ValueError("Date needs to be in yyyy-mm-dd, yyyy-mm or yyyy format when freq is Y")
    ts = pd.Timestamp(date_value)
    return str(ts.year)