format_phone_number

phone.py

import re
import logging

def phone_format(phone_number, raise_exception=False):
    """
    Cleans up formatting for a phone number
    format_phone_number
    :param raise_exception: bool, throw an exception or return original value
    :param phone_number: inputted raw phone
    :return: str formatted_phone_number
    """
    if phone_number:
        try:
            # Extensions not saved.
            phone_number = str(phone_number).split('x')[0]
            clean_phone_number = re.sub('[^0-9]+', '', phone_number)
            formatted_phone_number = (re.sub("(\d)(?=(\d{3})+(?!\d))", r"\1-", "%s" % clean_phone_number[:-1]) +
                                      clean_phone_number[-1])
        except Exception as e:
            logging.error("helpers.phone_format unable to format phone: '{}'. {} {}"
                          "".format(phone_number, type(e).__name__, e))
            if raise_exception:
                raise e
            formatted_phone_number = phone_number
        return formatted_phone_number
    else:
        return phone_number