Class DatetimeFormatter

src/_pytest/logging.py:61–77

A logging formatter which formats record with :func:`datetime.datetime.strftime` formatter instead of :func:`time.strftime` in case of microseconds in format string.

class DatetimeFormatter(logging.Formatter):
    """A logging formatter which formats record with
    :func:`datetime.datetime.strftime` formatter instead of
    :func:`time.strftime` in case of microseconds in format string.
    """

    def formatTime(self, record: LogRecord, datefmt: str | None = None) -> str:
        if datefmt and "%f" in datefmt:
            ct = self.converter(record.created)
            tz = timezone(timedelta(seconds=ct.tm_gmtoff), ct.tm_zone)
            # Construct `datetime.datetime` object from `struct_time`
            # and msecs information from `record`
            # Using int() instead of round() to avoid it exceeding 1_000_000 and causing a ValueError (#11861).
            dt = datetime(*ct[0:6], microsecond=int(record.msecs * 1000), tzinfo=tz)
            return dt.strftime(datefmt)
        # Use `logging.Formatter` for non-microsecond formats
        return super().formatTime(record, datefmt)


class ColoredLevelFormatter(DatetimeFormatter):