Python time.daylight() Examples

The following are code examples for showing how to use time.daylight(). They are from open source Python projects. You can vote up the examples you like or vote down the ones you don't like.

Example 1
Project: pyblish-win   Author: pyblish   File: test_strptime.py    GNU Lesser General Public License v3.0 6 votes vote down vote up
def test_bad_timezone(self):
        # Explicitly test possibility of bad timezone;
        # when time.tzname[0] == time.tzname[1] and time.daylight
        tz_name = time.tzname[0]
        if tz_name.upper() in ("UTC", "GMT"):
            self.skipTest('need non-UTC/GMT timezone')
        try:
            original_tzname = time.tzname
            original_daylight = time.daylight
            time.tzname = (tz_name, tz_name)
            time.daylight = 1
            tz_value = _strptime._strptime_time(tz_name, "%Z")[8]
            self.assertEqual(tz_value, -1,
                    "%s lead to a timezone value of %s instead of -1 when "
                    "time.daylight set to %s and passing in %s" %
                    (time.tzname, tz_value, time.daylight, tz_name))
        finally:
            time.tzname = original_tzname
            time.daylight = original_daylight 
Example 2
Project: password_pwncheck   Author: CboeSecurity   File: password-pwncheck.py    MIT License 6 votes vote down vote up
def logmsg(request,type,message,args):
    is_dst = time.daylight and time.localtime().tm_isdst > 0
    tz =  - (time.altzone if is_dst else time.timezone) / 36
    if tz>=0:
        tz="+%04d"%tz
    else:
        tz="%05d"%tz
    datestr = '%d/%b/%Y %H:%M:%S'
    user = getattr(logStore,'user','')
    isValid = getattr(logStore,'isValid','')
    code = getattr(logStore,'code','')
    args = getLogDateTime(args)
    log = '%s %s,%s,%s,%s,%s,%s' % (datetime.now().strftime(datestr),tz,request.address_string(),user,isValid,code, message % args)
    with logLock:
        with open(cfg.logpath,'a') as fw:
            fw.write(log+os.linesep)
    return log 
Example 3
Project: NiujiaoDebugger   Author: MrSrc   File: _strptime.py    GNU General Public License v3.0 6 votes vote down vote up
def __calc_timezone(self):
        # Set self.timezone by using time.tzname.
        # Do not worry about possibility of time.tzname[0] == time.tzname[1]
        # and time.daylight; handle that in strptime.
        try:
            time.tzset()
        except AttributeError:
            pass
        self.tzname = time.tzname
        self.daylight = time.daylight
        no_saving = frozenset({"utc", "gmt", self.tzname[0].lower()})
        if self.daylight:
            has_saving = frozenset({self.tzname[1].lower()})
        else:
            has_saving = frozenset()
        self.timezone = (no_saving, has_saving) 
Example 4
Project: NiujiaoDebugger   Author: MrSrc   File: test_strptime.py    GNU General Public License v3.0 6 votes vote down vote up
def test_timezone(self):
        # Test timezone directives.
        # When gmtime() is used with %Z, entire result of strftime() is empty.
        # Check for equal timezone names deals with bad locale info when this
        # occurs; first found in FreeBSD 4.4.
        strp_output = _strptime._strptime_time("UTC", "%Z")
        self.assertEqual(strp_output.tm_isdst, 0)
        strp_output = _strptime._strptime_time("GMT", "%Z")
        self.assertEqual(strp_output.tm_isdst, 0)
        time_tuple = time.localtime()
        strf_output = time.strftime("%Z")  #UTC does not have a timezone
        strp_output = _strptime._strptime_time(strf_output, "%Z")
        locale_time = _strptime.LocaleTime()
        if time.tzname[0] != time.tzname[1] or not time.daylight:
            self.assertTrue(strp_output[8] == time_tuple[8],
                            "timezone check failed; '%s' -> %s != %s" %
                             (strf_output, strp_output[8], time_tuple[8]))
        else:
            self.assertTrue(strp_output[8] == -1,
                            "LocaleTime().timezone has duplicate values and "
                             "time.daylight but timezone value not set to -1") 
Example 5
Project: NiujiaoDebugger   Author: MrSrc   File: test_strptime.py    GNU General Public License v3.0 6 votes vote down vote up
def test_bad_timezone(self):
        # Explicitly test possibility of bad timezone;
        # when time.tzname[0] == time.tzname[1] and time.daylight
        tz_name = time.tzname[0]
        if tz_name.upper() in ("UTC", "GMT"):
            self.skipTest('need non-UTC/GMT timezone')

        with support.swap_attr(time, 'tzname', (tz_name, tz_name)), \
             support.swap_attr(time, 'daylight', 1), \
             support.swap_attr(time, 'tzset', lambda: None):
            time.tzname = (tz_name, tz_name)
            time.daylight = 1
            tz_value = _strptime._strptime_time(tz_name, "%Z")[8]
            self.assertEqual(tz_value, -1,
                    "%s lead to a timezone value of %s instead of -1 when "
                    "time.daylight set to %s and passing in %s" %
                    (time.tzname, tz_value, time.daylight, tz_name)) 
Example 6
Project: ironpython2   Author: IronLanguages   File: _strptime.py    Apache License 2.0 6 votes vote down vote up
def __calc_timezone(self):
        # Set self.timezone by using time.tzname.
        # Do not worry about possibility of time.tzname[0] == time.tzname[1]
        # and time.daylight; handle that in strptime.
        try:
            time.tzset()
        except AttributeError:
            pass
        self.tzname = time.tzname
        self.daylight = time.daylight
        no_saving = frozenset(["utc", "gmt", self.tzname[0].lower()])
        if self.daylight:
            has_saving = frozenset([self.tzname[1].lower()])
        else:
            has_saving = frozenset()
        self.timezone = (no_saving, has_saving) 
Example 7
Project: ironpython2   Author: IronLanguages   File: test_strptime.py    Apache License 2.0 6 votes vote down vote up
def test_timezone(self):
        # Test timezone directives.
        # When gmtime() is used with %Z, entire result of strftime() is empty.
        # Check for equal timezone names deals with bad locale info when this
        # occurs; first found in FreeBSD 4.4.
        strp_output = _strptime._strptime_time("UTC", "%Z")
        self.assertEqual(strp_output.tm_isdst, 0)
        strp_output = _strptime._strptime_time("GMT", "%Z")
        self.assertEqual(strp_output.tm_isdst, 0)
        time_tuple = time.localtime()
        strf_output = time.strftime("%Z")  #UTC does not have a timezone
        strp_output = _strptime._strptime_time(strf_output, "%Z")
        locale_time = _strptime.LocaleTime()
        if time.tzname[0] != time.tzname[1] or not time.daylight:
            self.assertTrue(strp_output[8] == time_tuple[8],
                            "timezone check failed; '%s' -> %s != %s" %
                             (strf_output, strp_output[8], time_tuple[8]))
        else:
            self.assertTrue(strp_output[8] == -1,
                            "LocaleTime().timezone has duplicate values and "
                             "time.daylight but timezone value not set to -1") 
Example 8
Project: ironpython2   Author: IronLanguages   File: test_strptime.py    Apache License 2.0 6 votes vote down vote up
def test_bad_timezone(self):
        # Explicitly test possibility of bad timezone;
        # when time.tzname[0] == time.tzname[1] and time.daylight
        tz_name = time.tzname[0]
        if tz_name.upper() in ("UTC", "GMT"):
            self.skipTest('need non-UTC/GMT timezone')

        with support.swap_attr(time, 'tzname', (tz_name, tz_name)), \
             support.swap_attr(time, 'daylight', 1), \
             support.swap_attr(time, 'tzset', lambda: None):
            time.tzname = (tz_name, tz_name)
            time.daylight = 1
            tz_value = _strptime._strptime_time(tz_name, "%Z")[8]
            self.assertEqual(tz_value, -1,
                    "%s lead to a timezone value of %s instead of -1 when "
                    "time.daylight set to %s and passing in %s" %
                    (time.tzname, tz_value, time.daylight, tz_name)) 
Example 9
Project: ironpython2   Author: IronLanguages   File: test_time.py    Apache License 2.0 6 votes vote down vote up
def test_strptime(self):
        import time
        d = time.strptime("July 3, 2006 At 0724 GMT", "%B %d, %Y At %H%M GMT")
        self.assertEqual(d[0], 2006)
        self.assertEqual(d[1], 7)
        self.assertEqual(d[2], 3)
        self.assertEqual(d[3], 7)
        self.assertEqual(d[4], 24)
        self.assertEqual(d[5], 0)
        self.assertEqual(d[6], 0)
        self.assertEqual(d[7], 184)

        #CodePlex Work Item 2557
        self.assertEqual((2006, 7, 3, 7, 24, 0, 0, 184, -1), time.strptime("%07/03/06 07:24:00", "%%%c"))
        self.assertEqual((1900, 6, 1, 0, 0, 0, 4, 152, -1), time.strptime("%6", "%%%m"))
        self.assertEqual((1942, 1, 1, 0, 0, 0, 3, 1, -1), time.strptime("%1942", "%%%Y"))
        self.assertEqual((1900, 1, 6, 0, 0, 0, 5, 6, -1), time.strptime("%6", "%%%d"))

        #self.assertEqual((1900, 7, 9, 19, 30, 0, 4, 190, -1), time.strptime('Fri, July 9 7:30 PM', '%a, %B %d %I:%M %p'))
        # TODO: day of the week does not work as expected
        self.assertEqual((1900, 7, 9, 19, 30, 0, 0, 190, -1), time.strptime('July 9 7:30 PM', '%B %d %I:%M %p'))
        # CPY & IPY differ on daylight savings time for this parse

        self.assertRaises(ValueError, time.strptime, "July 3, 2006 At 0724 GMT", "%B %x, %Y At %H%M GMT") 
Example 10
Project: siemstress   Author: dogoncouch   File: trigger.py    MIT License 6 votes vote down vote up
def watch_rule(self):
        """Watch a trigger rule"""

        # Set time zone:
        if daylight:
            self.tzone = \
                    str(int(float(altzone) / 60 // 60)).rjust(2,
                            '0') + \
                    str(int(float(altzone) / 60 % 60)).ljust(2, '0')
        else:
            self.tzone = \
                    str(int(float(timezone) / 60 // 60)).rjust(2,
                            '0') + \
                    str(int(float(timezone) / 60 % 60)).ljust(2, '0')
        if not '-' in self.tzone:
            self.tzone = '+' + self.tzone

        while True:

            # Check the rule:
            self.check_rule()
        
            # Wait until the next interval
            sleep(int(self.rule['time_int']) * 60) 
Example 11
Project: sndlatr   Author: Schibum   File: imaplib2.py    Apache License 2.0 6 votes vote down vote up
def Time2Internaldate(date_time):

    """'"DD-Mmm-YYYY HH:MM:SS +HHMM"' = Time2Internaldate(date_time)
    Convert 'date_time' to IMAP4 INTERNALDATE representation."""

    if isinstance(date_time, (int, float)):
        tt = time.localtime(date_time)
    elif isinstance(date_time, (tuple, time.struct_time)):
        tt = date_time
    elif isinstance(date_time, str) and (date_time[0],date_time[-1]) == ('"','"'):
        return date_time        # Assume in correct format
    else:
        raise ValueError("date_time not of a known type")

    if time.daylight and tt[-1]:
        zone = -time.altzone
    else:
        zone = -time.timezone
    return ('"%2d-%s-%04d %02d:%02d:%02d %+03d%02d"' %
            ((tt[2], MonthNames[tt[1]], tt[0]) + tt[3:6] +
             divmod(zone//60, 60))) 
Example 12
Project: Blockly-rduino-communication   Author: technologiescollege   File: _strptime.py    GNU General Public License v3.0 6 votes vote down vote up
def __calc_timezone(self):
        # Set self.timezone by using time.tzname.
        # Do not worry about possibility of time.tzname[0] == time.tzname[1]
        # and time.daylight; handle that in strptime.
        try:
            time.tzset()
        except AttributeError:
            pass
        self.tzname = time.tzname
        self.daylight = time.daylight
        no_saving = frozenset(["utc", "gmt", self.tzname[0].lower()])
        if self.daylight:
            has_saving = frozenset([self.tzname[1].lower()])
        else:
            has_saving = frozenset()
        self.timezone = (no_saving, has_saving) 
Example 13
Project: Blockly-rduino-communication   Author: technologiescollege   File: test_strptime.py    GNU General Public License v3.0 6 votes vote down vote up
def test_timezone(self):
        # Test timezone directives.
        # When gmtime() is used with %Z, entire result of strftime() is empty.
        # Check for equal timezone names deals with bad locale info when this
        # occurs; first found in FreeBSD 4.4.
        strp_output = _strptime._strptime_time("UTC", "%Z")
        self.assertEqual(strp_output.tm_isdst, 0)
        strp_output = _strptime._strptime_time("GMT", "%Z")
        self.assertEqual(strp_output.tm_isdst, 0)
        time_tuple = time.localtime()
        strf_output = time.strftime("%Z")  #UTC does not have a timezone
        strp_output = _strptime._strptime_time(strf_output, "%Z")
        locale_time = _strptime.LocaleTime()
        if time.tzname[0] != time.tzname[1] or not time.daylight:
            self.assertTrue(strp_output[8] == time_tuple[8],
                            "timezone check failed; '%s' -> %s != %s" %
                             (strf_output, strp_output[8], time_tuple[8]))
        else:
            self.assertTrue(strp_output[8] == -1,
                            "LocaleTime().timezone has duplicate values and "
                             "time.daylight but timezone value not set to -1") 
Example 14
Project: Blockly-rduino-communication   Author: technologiescollege   File: test_strptime.py    GNU General Public License v3.0 6 votes vote down vote up
def test_bad_timezone(self):
        # Explicitly test possibility of bad timezone;
        # when time.tzname[0] == time.tzname[1] and time.daylight
        tz_name = time.tzname[0]
        if tz_name.upper() in ("UTC", "GMT"):
            self.skipTest('need non-UTC/GMT timezone')

        with support.swap_attr(time, 'tzname', (tz_name, tz_name)), \
             support.swap_attr(time, 'daylight', 1), \
             support.swap_attr(time, 'tzset', lambda: None):
            time.tzname = (tz_name, tz_name)
            time.daylight = 1
            tz_value = _strptime._strptime_time(tz_name, "%Z")[8]
            self.assertEqual(tz_value, -1,
                    "%s lead to a timezone value of %s instead of -1 when "
                    "time.daylight set to %s and passing in %s" %
                    (time.tzname, tz_value, time.daylight, tz_name)) 
Example 15
Project: pyblish-win   Author: pyblish   File: imaplib.py    GNU Lesser General Public License v3.0 5 votes vote down vote up
def Time2Internaldate(date_time):

    """Convert date_time to IMAP4 INTERNALDATE representation.

    Return string in form: '"DD-Mmm-YYYY HH:MM:SS +HHMM"'.  The
    date_time argument can be a number (int or float) representing
    seconds since epoch (as returned by time.time()), a 9-tuple
    representing local time (as returned by time.localtime()), or a
    double-quoted string.  In the last case, it is assumed to already
    be in the correct format.
    """

    if isinstance(date_time, (int, float)):
        tt = time.localtime(date_time)
    elif isinstance(date_time, (tuple, time.struct_time)):
        tt = date_time
    elif isinstance(date_time, str) and (date_time[0],date_time[-1]) == ('"','"'):
        return date_time        # Assume in correct format
    else:
        raise ValueError("date_time not of a known type")

    dt = time.strftime("%d-%b-%Y %H:%M:%S", tt)
    if dt[0] == '0':
        dt = ' ' + dt[1:]
    if time.daylight and tt[-1]:
        zone = -time.altzone
    else:
        zone = -time.timezone
    return '"' + dt + " %+03d%02d" % divmod(zone//60, 60) + '"' 
Example 16
Project: pyblish-win   Author: pyblish   File: _strptime.py    GNU Lesser General Public License v3.0 5 votes vote down vote up
def __calc_timezone(self):
        # Set self.timezone by using time.tzname.
        # Do not worry about possibility of time.tzname[0] == timetzname[1]
        # and time.daylight; handle that in strptime .
        try:
            time.tzset()
        except AttributeError:
            pass
        no_saving = frozenset(["utc", "gmt", time.tzname[0].lower()])
        if time.daylight:
            has_saving = frozenset([time.tzname[1].lower()])
        else:
            has_saving = frozenset()
        self.timezone = (no_saving, has_saving) 
Example 17
Project: pyblish-win   Author: pyblish   File: test_strptime.py    GNU Lesser General Public License v3.0 5 votes vote down vote up
def test_locale_data_w_regex_metacharacters(self):
        # Check that if locale data contains regex metacharacters they are
        # escaped properly.
        # Discovered by bug #1039270 .
        locale_time = _strptime.LocaleTime()
        locale_time.timezone = (frozenset(("utc", "gmt",
                                            "Tokyo (standard time)")),
                                frozenset("Tokyo (daylight time)"))
        time_re = _strptime.TimeRE(locale_time)
        self.assertTrue(time_re.compile("%Z").match("Tokyo (standard time)"),
                        "locale data that contains regex metacharacters is not"
                        " properly escaped") 
Example 18
Project: pyblish-win   Author: pyblish   File: test_time.py    GNU Lesser General Public License v3.0 5 votes vote down vote up
def test_data_attributes(self):
        time.altzone
        time.daylight
        time.timezone
        time.tzname 
Example 19
Project: pyblish-win   Author: pyblish   File: test_time.py    GNU Lesser General Public License v3.0 5 votes vote down vote up
def test_default_values_for_zero(self):
        # Make sure that using all zeros uses the proper default values.
        # No test for daylight savings since strftime() does not change output
        # based on its value.
        expected = "2000 01 01 00 00 00 1 001"
        result = time.strftime("%Y %m %d %H %M %S %w %j", (0,)*9)
        self.assertEqual(expected, result) 
Example 20
Project: pyblish-win   Author: pyblish   File: test_ssl.py    GNU Lesser General Public License v3.0 5 votes vote down vote up
def utc_offset(): #NOTE: ignore issues like #1647654
    # local time = utc time + utc offset
    if time.daylight and time.localtime().tm_isdst > 0:
        return -time.altzone  # seconds
    return -time.timezone 
Example 21
Project: AshsSDK   Author: thehappydinoa   File: tz.py    MIT License 5 votes vote down vote up
def __init__(self):
        super(tzlocal, self).__init__()

        self._std_offset = datetime.timedelta(seconds=-time.timezone)
        if time.daylight:
            self._dst_offset = datetime.timedelta(seconds=-time.altzone)
        else:
            self._dst_offset = self._std_offset

        self._dst_saved = self._dst_offset - self._std_offset
        self._hasdst = bool(self._dst_saved) 
Example 22
Project: jawfish   Author: war-and-code   File: _strptime.py    MIT License 5 votes vote down vote up
def __calc_timezone(self):
        # Set self.timezone by using time.tzname.
        # Do not worry about possibility of time.tzname[0] == timetzname[1]
        # and time.daylight; handle that in strptime .
        #try:
            #time.tzset()
        #except AttributeError:
            #pass
        no_saving = frozenset(["utc", "gmt", time.tzname[0].lower()])
        if time.daylight:
            has_saving = frozenset([time.tzname[1].lower()])
        else:
            has_saving = frozenset()
        self.timezone = (no_saving, has_saving) 
Example 23
Project: Repobot   Author: Desgard   File: utils.py    MIT License 5 votes vote down vote up
def localtime(dt=None, isdst=-1):
    """Return local time as an aware datetime object.

    If called without arguments, return current time.  Otherwise *dt*
    argument should be a datetime instance, and it is converted to the
    local time zone according to the system time zone database.  If *dt* is
    naive (that is, dt.tzinfo is None), it is assumed to be in local time.
    In this case, a positive or zero value for *isdst* causes localtime to
    presume initially that summer time (for example, Daylight Saving Time)
    is or is not (respectively) in effect for the specified time.  A
    negative value for *isdst* causes the localtime() function to attempt
    to divine whether summer time is in effect for the specified time.

    """
    if dt is None:
        return datetime.datetime.now(datetime.timezone.utc).astimezone()
    if dt.tzinfo is not None:
        return dt.astimezone()
    # We have a naive datetime.  Convert to a (localtime) timetuple and pass to
    # system mktime together with the isdst hint.  System mktime will return
    # seconds since epoch.
    tm = dt.timetuple()[:-1] + (isdst,)
    seconds = time.mktime(tm)
    localtm = time.localtime(seconds)
    try:
        delta = datetime.timedelta(seconds=localtm.tm_gmtoff)
        tz = datetime.timezone(delta, localtm.tm_zone)
    except AttributeError:
        # Compute UTC offset and compare with the value implied by tm_isdst.
        # If the values match, use the zone name implied by tm_isdst.
        delta = dt - datetime.datetime(*time.gmtime(seconds)[:6])
        dst = time.daylight and localtm.tm_isdst > 0
        gmtoff = -(time.altzone if dst else time.timezone)
        if delta == datetime.timedelta(seconds=gmtoff):
            tz = datetime.timezone(delta, time.tzname[dst])
        else:
            tz = datetime.timezone(delta)
    return dt.replace(tzinfo=tz) 
Example 24
Project: chattR   Author: patrickstocklin   File: timezone.py    GNU General Public License v2.0 5 votes vote down vote up
def __init__(self):
        self.STDOFFSET = timedelta(seconds=-_time.timezone)
        if _time.daylight:
            self.DSTOFFSET = timedelta(seconds=-_time.altzone)
        else:
            self.DSTOFFSET = self.STDOFFSET
        self.DSTDIFF = self.DSTOFFSET - self.STDOFFSET
        tzinfo.__init__(self) 
Example 25
Project: NiujiaoDebugger   Author: MrSrc   File: imaplib.py    GNU General Public License v3.0 5 votes vote down vote up
def Time2Internaldate(date_time):

    """Convert date_time to IMAP4 INTERNALDATE representation.

    Return string in form: '"DD-Mmm-YYYY HH:MM:SS +HHMM"'.  The
    date_time argument can be a number (int or float) representing
    seconds since epoch (as returned by time.time()), a 9-tuple
    representing local time, an instance of time.struct_time (as
    returned by time.localtime()), an aware datetime instance or a
    double-quoted string.  In the last case, it is assumed to already
    be in the correct format.
    """
    if isinstance(date_time, (int, float)):
        dt = datetime.fromtimestamp(date_time,
                                    timezone.utc).astimezone()
    elif isinstance(date_time, tuple):
        try:
            gmtoff = date_time.tm_gmtoff
        except AttributeError:
            if time.daylight:
                dst = date_time[8]
                if dst == -1:
                    dst = time.localtime(time.mktime(date_time))[8]
                gmtoff = -(time.timezone, time.altzone)[dst]
            else:
                gmtoff = -time.timezone
        delta = timedelta(seconds=gmtoff)
        dt = datetime(*date_time[:6], tzinfo=timezone(delta))
    elif isinstance(date_time, datetime):
        if date_time.tzinfo is None:
            raise ValueError("date_time must be aware")
        dt = date_time
    elif isinstance(date_time, str) and (date_time[0],date_time[-1]) == ('"','"'):
        return date_time        # Assume in correct format
    else:
        raise ValueError("date_time not of a known type")
    fmt = '"%d-{}-%Y %H:%M:%S %z"'.format(Months[dt.month])
    return dt.strftime(fmt) 
Example 26
Project: NiujiaoDebugger   Author: MrSrc   File: utils.py    GNU General Public License v3.0 5 votes vote down vote up
def formatdate(timeval=None, localtime=False, usegmt=False):
    """Returns a date string as specified by RFC 2822, e.g.:

    Fri, 09 Nov 2001 01:08:47 -0000

    Optional timeval if given is a floating point time value as accepted by
    gmtime() and localtime(), otherwise the current time is used.

    Optional localtime is a flag that when True, interprets timeval, and
    returns a date relative to the local timezone instead of UTC, properly
    taking daylight savings time into account.

    Optional argument usegmt means that the timezone is written out as
    an ascii string, not numeric one (so "GMT" instead of "+0000"). This
    is needed for HTTP, and is only used when localtime==False.
    """
    # Note: we cannot use strftime() because that honors the locale and RFC
    # 2822 requires that day and month names be the English abbreviations.
    if timeval is None:
        timeval = time.time()
    if localtime or usegmt:
        dt = datetime.datetime.fromtimestamp(timeval, datetime.timezone.utc)
    else:
        dt = datetime.datetime.utcfromtimestamp(timeval)
    if localtime:
        dt = dt.astimezone()
        usegmt = False
    return format_datetime(dt, usegmt) 
Example 27
Project: NiujiaoDebugger   Author: MrSrc   File: utils.py    GNU General Public License v3.0 5 votes vote down vote up
def localtime(dt=None, isdst=-1):
    """Return local time as an aware datetime object.

    If called without arguments, return current time.  Otherwise *dt*
    argument should be a datetime instance, and it is converted to the
    local time zone according to the system time zone database.  If *dt* is
    naive (that is, dt.tzinfo is None), it is assumed to be in local time.
    In this case, a positive or zero value for *isdst* causes localtime to
    presume initially that summer time (for example, Daylight Saving Time)
    is or is not (respectively) in effect for the specified time.  A
    negative value for *isdst* causes the localtime() function to attempt
    to divine whether summer time is in effect for the specified time.

    """
    if dt is None:
        return datetime.datetime.now(datetime.timezone.utc).astimezone()
    if dt.tzinfo is not None:
        return dt.astimezone()
    # We have a naive datetime.  Convert to a (localtime) timetuple and pass to
    # system mktime together with the isdst hint.  System mktime will return
    # seconds since epoch.
    tm = dt.timetuple()[:-1] + (isdst,)
    seconds = time.mktime(tm)
    localtm = time.localtime(seconds)
    try:
        delta = datetime.timedelta(seconds=localtm.tm_gmtoff)
        tz = datetime.timezone(delta, localtm.tm_zone)
    except AttributeError:
        # Compute UTC offset and compare with the value implied by tm_isdst.
        # If the values match, use the zone name implied by tm_isdst.
        delta = dt - datetime.datetime(*time.gmtime(seconds)[:6])
        dst = time.daylight and localtm.tm_isdst > 0
        gmtoff = -(time.altzone if dst else time.timezone)
        if delta == datetime.timedelta(seconds=gmtoff):
            tz = datetime.timezone(delta, time.tzname[dst])
        else:
            tz = datetime.timezone(delta)
    return dt.replace(tzinfo=tz) 
Example 28
Project: NiujiaoDebugger   Author: MrSrc   File: _strptime.py    GNU General Public License v3.0 5 votes vote down vote up
def __init__(self):
        """Set all attributes.

        Order of methods called matters for dependency reasons.

        The locale language is set at the offset and then checked again before
        exiting.  This is to make sure that the attributes were not set with a
        mix of information from more than one locale.  This would most likely
        happen when using threads where one thread calls a locale-dependent
        function while another thread changes the locale while the function in
        the other thread is still running.  Proper coding would call for
        locks to prevent changing the locale while locale-dependent code is
        running.  The check here is done in case someone does not think about
        doing this.

        Only other possible issue is if someone changed the timezone and did
        not call tz.tzset .  That is an issue for the programmer, though,
        since changing the timezone is worthless without that call.

        """
        self.lang = _getlang()
        self.__calc_weekday()
        self.__calc_month()
        self.__calc_am_pm()
        self.__calc_timezone()
        self.__calc_date_time()
        if _getlang() != self.lang:
            raise ValueError("locale changed during initialization")
        if time.tzname != self.tzname or time.daylight != self.daylight:
            raise ValueError("timezone changed during initialization") 
Example 29
Project: NiujiaoDebugger   Author: MrSrc   File: test_time.py    GNU General Public License v3.0 5 votes vote down vote up
def test_data_attributes(self):
        time.altzone
        time.daylight
        time.timezone
        time.tzname 
Example 30
Project: NiujiaoDebugger   Author: MrSrc   File: test_time.py    GNU General Public License v3.0 5 votes vote down vote up
def test_default_values_for_zero(self):
        # Make sure that using all zeros uses the proper default
        # values.  No test for daylight savings since strftime() does
        # not change output based on its value and no test for year
        # because systems vary in their support for year 0.
        expected = "2000 01 01 00 00 00 1 001"
        with support.check_warnings():
            result = time.strftime("%Y %m %d %H %M %S %w %j", (2000,)+(0,)*8)
        self.assertEqual(expected, result) 
Example 31
Project: NiujiaoDebugger   Author: MrSrc   File: test_ssl.py    GNU General Public License v3.0 5 votes vote down vote up
def utc_offset(): #NOTE: ignore issues like #1647654
    # local time = utc time + utc offset
    if time.daylight and time.localtime().tm_isdst > 0:
        return -time.altzone  # seconds
    return -time.timezone 
Example 32
Project: recruit   Author: Frank-qlu   File: tz.py    Apache License 2.0 5 votes vote down vote up
def __init__(self):
        super(tzlocal, self).__init__()

        self._std_offset = datetime.timedelta(seconds=-time.timezone)
        if time.daylight:
            self._dst_offset = datetime.timedelta(seconds=-time.altzone)
        else:
            self._dst_offset = self._std_offset

        self._dst_saved = self._dst_offset - self._std_offset
        self._hasdst = bool(self._dst_saved)
        self._tznames = tuple(time.tzname) 
Example 33
Project: aws-cfn-plex   Author: lordmuffin   File: tz.py    MIT License 5 votes vote down vote up
def __init__(self):
        super(tzlocal, self).__init__()

        self._std_offset = datetime.timedelta(seconds=-time.timezone)
        if time.daylight:
            self._dst_offset = datetime.timedelta(seconds=-time.altzone)
        else:
            self._dst_offset = self._std_offset

        self._dst_saved = self._dst_offset - self._std_offset
        self._hasdst = bool(self._dst_saved) 
Example 34
Project: grand_central   Author: amiracle   File: tz.py    MIT License 5 votes vote down vote up
def __init__(self):
        super(tzlocal, self).__init__()

        self._std_offset = datetime.timedelta(seconds=-time.timezone)
        if time.daylight:
            self._dst_offset = datetime.timedelta(seconds=-time.altzone)
        else:
            self._dst_offset = self._std_offset

        self._dst_saved = self._dst_offset - self._std_offset
        self._hasdst = bool(self._dst_saved)
        self._tznames = tuple(time.tzname) 
Example 35
Project: insightconnect-plugins   Author: rapid7   File: trigger.py    MIT License 5 votes vote down vote up
def time_set(self):
        is_dst = time.daylight and time.localtime().tm_isdst > 0
        utc_offset = - (time.altzone if is_dst else time.timezone)
        timezone = time.tzname[time.daylight]
        time_now = str(datetime.datetime.now(dateutil.tz.tzoffset(timezone, utc_offset))).replace(' ', 'T')
        self.logger.info(utc_offset)
        self.logger.info(time.timezone)
        return time_now 
Example 36
Project: alexa-apple-calendar   Author: zanderxyz   File: tz.py    MIT License 5 votes vote down vote up
def __init__(self):
        self._std_offset = datetime.timedelta(seconds=-time.timezone)
        if time.daylight:
            self._dst_offset = datetime.timedelta(seconds=-time.altzone)
        else:
            self._dst_offset = self._std_offset 
Example 37
Project: TESTGIT   Author: B-ROY   File: timezone.py    Apache License 2.0 5 votes vote down vote up
def __init__(self):
        # This code is moved in __init__ to execute it as late as possible
        # See get_default_timezone().
        self.STDOFFSET = timedelta(seconds=-_time.timezone)
        if _time.daylight:
            self.DSTOFFSET = timedelta(seconds=-_time.altzone)
        else:
            self.DSTOFFSET = self.STDOFFSET
        self.DSTDIFF = self.DSTOFFSET - self.STDOFFSET
        tzinfo.__init__(self) 
Example 38
Project: AneMo   Author: jspargo   File: timezone.py    GNU General Public License v2.0 5 votes vote down vote up
def __init__(self):
        self.STDOFFSET = timedelta(seconds=-_time.timezone)
        if _time.daylight:
            self.DSTOFFSET = timedelta(seconds=-_time.altzone)
        else:
            self.DSTOFFSET = self.STDOFFSET
        self.DSTDIFF = self.DSTOFFSET - self.STDOFFSET
        tzinfo.__init__(self) 
Example 39
Project: qis   Author: quru   File: util.py    GNU Affero General Public License v3.0 5 votes vote down vote up
def is_timezone_dst():
    """
    Returns whether daylight saving time is in effect for the current timezone.
    See also http://bugs.python.org/issue7229
    """
    return time.daylight and time.localtime().tm_isdst 
Example 40
Project: qis   Author: quru   File: util.py    GNU Affero General Public License v3.0 5 votes vote down vote up
def get_timezone_code():
    """
    Returns the timezone abbreviation of the current environment, including
    daylight saving. Note that some timezone codes are ambiguous, e.g. EST.
    """
    (tz, dst_tz) = time.tzname
    return dst_tz if is_timezone_dst() else tz 
Example 41
Project: qis   Author: quru   File: util.py    GNU Affero General Public License v3.0 5 votes vote down vote up
def get_timezone_offset():
    """
    Returns the offset in seconds that must be added to a local time, including
    daylight saving, in order to convert it to a UTC time.
    """
    return time.altzone if is_timezone_dst() else time.timezone 
Example 42
Project: oa_qian   Author: sunqb   File: tz.py    Apache License 2.0 5 votes vote down vote up
def __init__(self):
        self._std_offset = datetime.timedelta(seconds=-time.timezone)
        if time.daylight:
            self._dst_offset = datetime.timedelta(seconds=-time.altzone)
        else:
            self._dst_offset = self._std_offset 
Example 43
Project: GTDWeb   Author: lanbing510   File: timezone.py    GNU General Public License v2.0 5 votes vote down vote up
def __init__(self):
        self.STDOFFSET = timedelta(seconds=-_time.timezone)
        if _time.daylight:
            self.DSTOFFSET = timedelta(seconds=-_time.altzone)
        else:
            self.DSTOFFSET = self.STDOFFSET
        self.DSTDIFF = self.DSTOFFSET - self.STDOFFSET
        tzinfo.__init__(self) 
Example 44
Project: FUTU_Stop_Loss   Author: BigtoC   File: tz.py    MIT License 5 votes vote down vote up
def __init__(self):
        super(tzlocal, self).__init__()

        self._std_offset = datetime.timedelta(seconds=-time.timezone)
        if time.daylight:
            self._dst_offset = datetime.timedelta(seconds=-time.altzone)
        else:
            self._dst_offset = self._std_offset

        self._dst_saved = self._dst_offset - self._std_offset
        self._hasdst = bool(self._dst_saved)
        self._tznames = tuple(time.tzname) 
Example 45
Project: bitmask-dev   Author: leapcode   File: gateways.py    GNU General Public License v3.0 5 votes vote down vote up
def _get_local_offset(self):
        '''
        Return the distance between GMT and the local timezone.

        :rtype: int
        '''
        local_offset = time.timezone
        if time.daylight:
            local_offset = time.altzone

        return -local_offset / 3600 
Example 46
Project: ironpython2   Author: IronLanguages   File: imaplib.py    Apache License 2.0 5 votes vote down vote up
def Time2Internaldate(date_time):

    """Convert date_time to IMAP4 INTERNALDATE representation.

    Return string in form: '"DD-Mmm-YYYY HH:MM:SS +HHMM"'.  The
    date_time argument can be a number (int or float) representing
    seconds since epoch (as returned by time.time()), a 9-tuple
    representing local time (as returned by time.localtime()), or a
    double-quoted string.  In the last case, it is assumed to already
    be in the correct format.
    """

    if isinstance(date_time, (int, long, float)):
        tt = time.localtime(date_time)
    elif isinstance(date_time, (tuple, time.struct_time)):
        tt = date_time
    elif isinstance(date_time, str) and (date_time[0],date_time[-1]) == ('"','"'):
        return date_time        # Assume in correct format
    else:
        raise ValueError("date_time not of a known type")

    dt = time.strftime("%d-%b-%Y %H:%M:%S", tt)
    if dt[0] == '0':
        dt = ' ' + dt[1:]
    if time.daylight and tt[-1]:
        zone = -time.altzone
    else:
        zone = -time.timezone
    return '"' + dt + " %+03d%02d" % divmod(zone//60, 60) + '"' 
Example 47
Project: ironpython2   Author: IronLanguages   File: _strptime.py    Apache License 2.0 5 votes vote down vote up
def __init__(self):
        """Set all attributes.

        Order of methods called matters for dependency reasons.

        The locale language is set at the offset and then checked again before
        exiting.  This is to make sure that the attributes were not set with a
        mix of information from more than one locale.  This would most likely
        happen when using threads where one thread calls a locale-dependent
        function while another thread changes the locale while the function in
        the other thread is still running.  Proper coding would call for
        locks to prevent changing the locale while locale-dependent code is
        running.  The check here is done in case someone does not think about
        doing this.

        Only other possible issue is if someone changed the timezone and did
        not call tz.tzset .  That is an issue for the programmer, though,
        since changing the timezone is worthless without that call.

        """
        self.lang = _getlang()
        self.__calc_weekday()
        self.__calc_month()
        self.__calc_am_pm()
        self.__calc_timezone()
        self.__calc_date_time()
        if _getlang() != self.lang:
            raise ValueError("locale changed during initialization")
        if time.tzname != self.tzname or time.daylight != self.daylight:
            raise ValueError("timezone changed during initialization") 
Example 48
Project: ironpython2   Author: IronLanguages   File: test_strptime.py    Apache License 2.0 5 votes vote down vote up
def test_locale_data_w_regex_metacharacters(self):
        # Check that if locale data contains regex metacharacters they are
        # escaped properly.
        # Discovered by bug #1039270 .
        locale_time = _strptime.LocaleTime()
        locale_time.timezone = (frozenset(("utc", "gmt",
                                            "Tokyo (standard time)")),
                                frozenset("Tokyo (daylight time)"))
        time_re = _strptime.TimeRE(locale_time)
        self.assertTrue(time_re.compile("%Z").match("Tokyo (standard time)"),
                        "locale data that contains regex metacharacters is not"
                        " properly escaped") 
Example 49
Project: ironpython2   Author: IronLanguages   File: test_time.py    Apache License 2.0 5 votes vote down vote up
def test_data_attributes(self):
        time.altzone
        time.daylight
        time.timezone
        time.tzname 
Example 50
Project: ironpython2   Author: IronLanguages   File: test_time.py    Apache License 2.0 5 votes vote down vote up
def test_default_values_for_zero(self):
        # Make sure that using all zeros uses the proper default values.
        # No test for daylight savings since strftime() does not change output
        # based on its value.
        expected = "2000 01 01 00 00 00 1 001"
        result = time.strftime("%Y %m %d %H %M %S %w %j", (0,)*9)
        self.assertEqual(expected, result)