<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def error_handler(exception_cls, response):
 """Handle HTTP errors by formatting into strings."""

    # Responses are sent as html. Split on the newlines and give us
    # the <p> text back.
    error = convert_response_to_text(response)
    exception = exception_cls("Response Code: %s\tResponse: %s" %
                              (response.status_code, error))
    exception.status_code = response.status_code
    raise exception