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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def exc_handle(url, out, testing):
 """ Handle exception. If of a determinate subset, it is stored into a file as a single type. Otherwise, full stack is stored. Furthermore, if testing, stack is always shown. @param url: url which was being scanned when exception was thrown. @param out: Output object, usually self.out. @param testing: whether we are currently running unit tests. """

    quiet_exceptions = [ConnectionError, ReadTimeout, ConnectTimeout,
            TooManyRedirects]
    type, value, _ = sys.exc_info()
    if type not in quiet_exceptions or testing:
        exc = traceback.format_exc()
        exc_string = ("Line '%s' raised:\n" % url) + exc
        out.warn(exc_string, whitespace_strp=False)

        if testing:
            print(exc)
    else:
        exc_string = "Line %s '%s: %s'" % (url, type, value)
        out.warn(exc_string)