timezones.py 文件源码

def _detect_timezone_etc_timezone():
  if os.path.exists("/etc/timezone"):
    try:
      tz = file("/etc/timezone").read().strip()
      try:
        return pytz.timezone(tz)
      except (IOError, pytz.UnknownTimeZoneError), ei:
        warnings.warn("Your /etc/timezone file references a timezone (%r) that"
                      " is not valid (%r)." % (tz, ei))

    # Problem reading the /etc/timezone file
    except IOError, eo:
      warnings.warn("Could not access your /etc/timezone file: %s" % eo)