Python django.utils.timezone.get_fixed_timezone() Examples

def parse_datetime(value):
    """Parse a string and return a datetime.datetime.

    This function supports time zone offsets. When the input contains one,
    the output uses a timezone with a fixed offset from UTC.

    Raise ValueError if the input is well formatted but not a valid datetime.
    Return None if the input isn't well formatted.
    """
    match = datetime_re.match(value)
    if match:
        kw = match.groupdict()
        kw['microsecond'] = kw['microsecond'] and kw['microsecond'].ljust(6, '0')
        tzinfo = kw.pop('tzinfo')
        if tzinfo == 'Z':
            tzinfo = utc
        elif tzinfo is not None:
            offset_mins = int(tzinfo[-2:]) if len(tzinfo) > 3 else 0
            offset = 60 * int(tzinfo[1:3]) + offset_mins
            if tzinfo[0] == '-':
                offset = -offset
            tzinfo = get_fixed_timezone(offset)
        kw = {k: int(v) for k, v in kw.items() if v is not None}
        kw['tzinfo'] = tzinfo
        return datetime.datetime(**kw) 

def test_parse_datetime(self):
        valid_inputs = (
            ('2012-04-23T09:15:00', datetime(2012, 4, 23, 9, 15)),
            ('2012-4-9 4:8:16', datetime(2012, 4, 9, 4, 8, 16)),
            ('2012-04-23T09:15:00Z', datetime(2012, 4, 23, 9, 15, 0, 0, get_fixed_timezone(0))),
            ('2012-4-9 4:8:16-0320', datetime(2012, 4, 9, 4, 8, 16, 0, get_fixed_timezone(-200))),
            ('2012-04-23T10:20:30.400+02:30', datetime(2012, 4, 23, 10, 20, 30, 400000, get_fixed_timezone(150))),
            ('2012-04-23T10:20:30.400+02', datetime(2012, 4, 23, 10, 20, 30, 400000, get_fixed_timezone(120))),
            ('2012-04-23T10:20:30.400-02', datetime(2012, 4, 23, 10, 20, 30, 400000, get_fixed_timezone(-120))),
        )
        for source, expected in valid_inputs:
            with self.subTest(source=source):
                self.assertEqual(parse_datetime(source), expected)

        # Invalid inputs
        self.assertIsNone(parse_datetime('20120423091500'))
        with self.assertRaises(ValueError):
            parse_datetime('2012-04-56T09:15:90') 

def test_serialize_datetime(self):
        self.assertSerializedEqual(datetime.datetime.utcnow())
        self.assertSerializedEqual(datetime.datetime.utcnow)
        self.assertSerializedEqual(datetime.datetime.today())
        self.assertSerializedEqual(datetime.datetime.today)
        self.assertSerializedEqual(datetime.date.today())
        self.assertSerializedEqual(datetime.date.today)
        self.assertSerializedEqual(datetime.datetime.now().time())
        self.assertSerializedEqual(datetime.datetime(2014, 1, 1, 1, 1, tzinfo=get_default_timezone()))
        self.assertSerializedEqual(datetime.datetime(2013, 12, 31, 22, 1, tzinfo=get_fixed_timezone(180)))
        self.assertSerializedResultEqual(
            datetime.datetime(2014, 1, 1, 1, 1),
            ("datetime.datetime(2014, 1, 1, 1, 1)", {'import datetime'})
        )
        self.assertSerializedResultEqual(
            datetime.datetime(2012, 1, 1, 1, 1, tzinfo=utc),
            (
                "datetime.datetime(2012, 1, 1, 1, 1, tzinfo=utc)",
                {'import datetime', 'from django.utils.timezone import utc'},
            )
        ) 

def test_timezones(self):
        # Saving and updating with timezone-aware datetime Python objects.
        # Regression test for #10443.
        # The idea is that all these creations and saving should work without
        # crashing. It's not rocket science.
        dt1 = datetime.datetime(2008, 8, 31, 16, 20, tzinfo=get_fixed_timezone(600))
        dt2 = datetime.datetime(2008, 8, 31, 17, 20, tzinfo=get_fixed_timezone(600))
        obj = Article.objects.create(
            headline="A headline", pub_date=dt1, article_text="foo"
        )
        obj.pub_date = dt2
        obj.save()
        self.assertEqual(
            Article.objects.filter(headline="A headline").update(pub_date=dt1),
            1
        ) 

def test_timezones(self):
        # Saving and updating with timezone-aware datetime Python objects.
        # Regression test for #10443.
        # The idea is that all these creations and saving should work without
        # crashing. It's not rocket science.
        dt1 = datetime.datetime(2008, 8, 31, 16, 20, tzinfo=get_fixed_timezone(600))
        dt2 = datetime.datetime(2008, 8, 31, 17, 20, tzinfo=get_fixed_timezone(600))
        obj = Article.objects.create(
            headline="A headline", pub_date=dt1, article_text="foo"
        )
        obj.pub_date = dt2
        obj.save()
        self.assertEqual(
            Article.objects.filter(headline="A headline").update(pub_date=dt1),
            1
        ) 

def test_rfc2822_date_with_timezone(self):
        """
        rfc2822_date() correctly formats datetime objects with tzinfo.
        """
        self.assertEqual(
            feedgenerator.rfc2822_date(datetime.datetime(2008, 11, 14, 13, 37, 0, tzinfo=get_fixed_timezone(60))),
            "Fri, 14 Nov 2008 13:37:00 +0100"
        ) 

def test_different_timezones(self):
        """ When using two different timezones. """
        now = datetime.datetime.now()
        now_tz = timezone.make_aware(now, timezone.get_default_timezone())
        now_tz_i = timezone.localtime(now_tz, timezone.get_fixed_timezone(195))

        self.assertEqual(timesince(now), '0\xa0minutes')
        self.assertEqual(timesince(now_tz), '0\xa0minutes')
        self.assertEqual(timesince(now_tz_i), '0\xa0minutes')
        self.assertEqual(timesince(now_tz, now_tz_i), '0\xa0minutes')
        self.assertEqual(timeuntil(now), '0\xa0minutes')
        self.assertEqual(timeuntil(now_tz), '0\xa0minutes')
        self.assertEqual(timeuntil(now_tz_i), '0\xa0minutes')
        self.assertEqual(timeuntil(now_tz, now_tz_i), '0\xa0minutes') 

def test_rfc3339_date_with_timezone(self):
        """
        rfc3339_date() correctly formats datetime objects with tzinfo.
        """
        self.assertEqual(
            feedgenerator.rfc3339_date(datetime.datetime(2008, 11, 14, 13, 37, 0, tzinfo=get_fixed_timezone(120))),
            "2008-11-14T13:37:00+02:00"
        ) 

def test_rfc2822_date_with_timezone(self):
        """
        rfc2822_date() correctly formats datetime objects with tzinfo.
        """
        self.assertEqual(
            feedgenerator.rfc2822_date(datetime.datetime(2008, 11, 14, 13, 37, 0, tzinfo=get_fixed_timezone(60))),
            "Fri, 14 Nov 2008 13:37:00 +0100"
        ) 

def test_fixedoffset_negative_timedelta(self):
        delta = datetime.timedelta(hours=-2)
        self.assertEqual(timezone.get_fixed_timezone(delta).utcoffset(None), delta) 

def test_make_aware_no_tz(self):
        self.assertEqual(
            timezone.make_aware(datetime.datetime(2011, 9, 1, 13, 20, 30)),
            datetime.datetime(2011, 9, 1, 13, 20, 30, tzinfo=timezone.get_fixed_timezone(-300))
        ) 

def test_naturalday_tz(self):
        today = datetime.date.today()
        tz_one = get_fixed_timezone(-720)
        tz_two = get_fixed_timezone(720)

        # Can be today or yesterday
        date_one = datetime.datetime(today.year, today.month, today.day, tzinfo=tz_one)
        naturalday_one = humanize.naturalday(date_one)
        # Can be today or tomorrow
        date_two = datetime.datetime(today.year, today.month, today.day, tzinfo=tz_two)
        naturalday_two = humanize.naturalday(date_two)

        # As 24h of difference they will never be the same
        self.assertNotEqual(naturalday_one, naturalday_two) 

def item_pubdate(self, item):
        # Provide a weird offset so that the test can know it's getting this
        # specific offset and not accidentally getting on from
        # settings.TIME_ZONE.
        return item.published.replace(tzinfo=get_fixed_timezone(42)) 

def test_time03(self):
        output = self.engine.render_to_string('time03', {'t': time(4, 0, tzinfo=timezone.get_fixed_timezone(30))})
        self.assertEqual(output, '4 a.m.::::') 

def setUp(self):
        self.now = datetime.now()
        self.now_tz = timezone.make_aware(
            self.now, timezone.get_default_timezone(),
        )
        self.now_tz_i = timezone.localtime(
            self.now_tz, timezone.get_fixed_timezone(195),
        )
        self.today = date.today() 

def test_different_timezones(self):
        """ When using two different timezones. """
        now = datetime.datetime.now()
        now_tz = timezone.make_aware(now, timezone.get_default_timezone())
        now_tz_i = timezone.localtime(now_tz, timezone.get_fixed_timezone(195))

        self.assertEqual(timesince(now), '0\xa0minutes')
        self.assertEqual(timesince(now_tz), '0\xa0minutes')
        self.assertEqual(timesince(now_tz_i), '0\xa0minutes')
        self.assertEqual(timesince(now_tz, now_tz_i), '0\xa0minutes')
        self.assertEqual(timeuntil(now), '0\xa0minutes')
        self.assertEqual(timeuntil(now_tz), '0\xa0minutes')
        self.assertEqual(timeuntil(now_tz_i), '0\xa0minutes')
        self.assertEqual(timeuntil(now_tz, now_tz_i), '0\xa0minutes') 

def test_rfc3339_date_with_timezone(self):
        """
        rfc3339_date() correctly formats datetime objects with tzinfo.
        """
        self.assertEqual(
            feedgenerator.rfc3339_date(datetime.datetime(2008, 11, 14, 13, 37, 0, tzinfo=get_fixed_timezone(120))),
            "2008-11-14T13:37:00+02:00"
        ) 

def parse_datetime(value):
    """Parses a string and return a datetime.datetime.

    This function supports time zone offsets. When the input contains one,
    the output uses a timezone with a fixed offset from UTC.

    Raises ValueError if the input is well formatted but not a valid datetime.
    Returns None if the input isn't well formatted.
    """
    match = datetime_re.match(value)
    if match:
        kw = match.groupdict()
        if kw['microsecond']:
            kw['microsecond'] = kw['microsecond'].ljust(6, '0')
        tzinfo = kw.pop('tzinfo')
        if tzinfo == 'Z':
            tzinfo = utc
        elif tzinfo is not None:
            offset_mins = int(tzinfo[-2:]) if len(tzinfo) > 3 else 0
            offset = 60 * int(tzinfo[1:3]) + offset_mins
            if tzinfo[0] == '-':
                offset = -offset
            tzinfo = get_fixed_timezone(offset)
        kw = {k: int(v) for k, v in six.iteritems(kw) if v is not None}
        kw['tzinfo'] = tzinfo
        return datetime.datetime(**kw) 

def test_fixedoffset_negative_timedelta(self):
        delta = datetime.timedelta(hours=-2)
        self.assertEqual(timezone.get_fixed_timezone(delta).utcoffset(''), delta) 

def test_fixedoffset_timedelta(self):
        delta = datetime.timedelta(hours=1)
        self.assertEqual(timezone.get_fixed_timezone(delta).utcoffset(''), delta) 

def test_make_aware_no_tz(self):
        self.assertEqual(
            timezone.make_aware(datetime.datetime(2011, 9, 1, 13, 20, 30)),
            datetime.datetime(2011, 9, 1, 13, 20, 30, tzinfo=timezone.get_fixed_timezone(-300))
        ) 

def test_naturalday_tz(self):
        today = datetime.date.today()
        tz_one = get_fixed_timezone(-720)
        tz_two = get_fixed_timezone(720)

        # Can be today or yesterday
        date_one = datetime.datetime(today.year, today.month, today.day, tzinfo=tz_one)
        naturalday_one = humanize.naturalday(date_one)
        # Can be today or tomorrow
        date_two = datetime.datetime(today.year, today.month, today.day, tzinfo=tz_two)
        naturalday_two = humanize.naturalday(date_two)

        # As 24h of difference they will never be the same
        self.assertNotEqual(naturalday_one, naturalday_two) 

def parse_datetime(value):
    """Parses a string and return a datetime.datetime.

    This function supports time zone offsets. When the input contains one,
    the output uses a timezone with a fixed offset from UTC.

    Raises ValueError if the input is well formatted but not a valid datetime.
    Returns None if the input isn't well formatted.
    """
    match = datetime_re.match(value)
    if match:
        kw = match.groupdict()
        if kw['microsecond']:
            kw['microsecond'] = kw['microsecond'].ljust(6, '0')
        tzinfo = kw.pop('tzinfo')
        if tzinfo == 'Z':
            tzinfo = utc
        elif tzinfo is not None:
            offset_mins = int(tzinfo[-2:]) if len(tzinfo) > 3 else 0
            offset = 60 * int(tzinfo[1:3]) + offset_mins
            if tzinfo[0] == '-':
                offset = -offset
            tzinfo = get_fixed_timezone(offset)
        kw = {k: int(v) for k, v in six.iteritems(kw) if v is not None}
        kw['tzinfo'] = tzinfo
        return datetime.datetime(**kw) 

def parse_datetime(value):
    """Parses a string and return a datetime.datetime.

    This function supports time zone offsets. When the input contains one,
    the output uses a timezone with a fixed offset from UTC.

    Raises ValueError if the input is well formatted but not a valid datetime.
    Returns None if the input isn't well formatted.
    """
    match = datetime_re.match(value)
    if match:
        kw = match.groupdict()
        if kw['microsecond']:
            kw['microsecond'] = kw['microsecond'].ljust(6, '0')
        tzinfo = kw.pop('tzinfo')
        if tzinfo == 'Z':
            tzinfo = utc
        elif tzinfo is not None:
            offset_mins = int(tzinfo[-2:]) if len(tzinfo) > 3 else 0
            offset = 60 * int(tzinfo[1:3]) + offset_mins
            if tzinfo[0] == '-':
                offset = -offset
            tzinfo = get_fixed_timezone(offset)
        kw = {k: int(v) for k, v in six.iteritems(kw) if v is not None}
        kw['tzinfo'] = tzinfo
        return datetime.datetime(**kw) 

def utc_tzinfo_factory(offset):
    if offset != 0:
        return get_fixed_timezone(offset)
    return utc 

def parse_datetime(value):
    """Parses a string and return a datetime.datetime.

    This function supports time zone offsets. When the input contains one,
    the output uses a timezone with a fixed offset from UTC.

    Raises ValueError if the input is well formatted but not a valid datetime.
    Returns None if the input isn't well formatted.
    """
    match = datetime_re.match(value)
    if match:
        kw = match.groupdict()
        if kw['microsecond']:
            kw['microsecond'] = kw['microsecond'].ljust(6, '0')
        tzinfo = kw.pop('tzinfo')
        if tzinfo == 'Z':
            tzinfo = utc
        elif tzinfo is not None:
            offset_mins = int(tzinfo[-2:]) if len(tzinfo) > 3 else 0
            offset = 60 * int(tzinfo[1:3]) + offset_mins
            if tzinfo[0] == '-':
                offset = -offset
            tzinfo = get_fixed_timezone(offset)
        kw = {k: int(v) for k, v in six.iteritems(kw) if v is not None}
        kw['tzinfo'] = tzinfo
        return datetime.datetime(**kw) 

def _format_time_ago(dt, now=None, full=False, ago_in=False, two_days=False):

    if not isinstance(dt, timedelta):
        if now is None:
            now = timezone.localtime(
                timezone=timezone.get_fixed_timezone(-int(t.timezone / 60))
            )

        original_dt = dt
        dt = _parse(dt)
        now = _parse(now)

        if dt is None:
            raise ValueError(
                "The parameter `dt` should be datetime timedelta, or datetime formatted string."
            )
        if now is None:
            raise ValueError(
                "the parameter `now` should be datetime, or datetime formatted string."
            )

        result = relativedelta.relativedelta(dt, now)
        flag, result = _format_relativedelta(result, full, two_days, original_dt)
        if ago_in and flag is not None:
            result = "in {}".format(result) if flag else "{} ago".format(result)
        return result 

def test_serialise_with_aware_datetime(self):
        """
        This tests that aware datetimes are converted to as UTC
        """
        # make an aware datetime, consisting of WAGTAIL_05_RELEASE_DATETIME
        # in a timezone 1hr west of UTC
        one_hour_west = timezone.get_fixed_timezone(-60)

        local_time = timezone.make_aware(self.WAGTAIL_05_RELEASE_DATETIME, one_hour_west)
        log = Log(time=local_time, data="Wagtail 0.5 released")
        log_json = json.loads(log.to_json())

        # Now check that the time is stored correctly with the timezone information at the end
        self.assertEqual(log_json['time'], '2014-08-01T12:01:42Z') 

def parse_datetime(value):
    """Parse a string and return a datetime.datetime.

    This function supports time zone offsets. When the input contains one,
    the output uses a timezone with a fixed offset from UTC.

    Raise ValueError if the input is well formatted but not a valid datetime.
    Return None if the input isn't well formatted.
    """
    match = datetime_re.match(value)
    if match:
        kw = match.groupdict()
        if kw['microsecond']:
            kw['microsecond'] = kw['microsecond'].ljust(6, '0')
        tzinfo = kw.pop('tzinfo')
        if tzinfo == 'Z':
            tzinfo = utc
        elif tzinfo is not None:
            offset_mins = int(tzinfo[-2:]) if len(tzinfo) > 3 else 0
            offset = 60 * int(tzinfo[1:3]) + offset_mins
            if tzinfo[0] == '-':
                offset = -offset
            tzinfo = get_fixed_timezone(offset)
        kw = {k: int(v) for k, v in kw.items() if v is not None}
        kw['tzinfo'] = tzinfo
        return datetime.datetime(**kw) 

def insertVuln(self, item, detail, vendor_list, product_list, ref_list, cvss_list, nvd_list):
        logger.info("insertVuln  " + item.get('sec:identifier'))

        try:
            query = Vuln(
                id = item.get('sec:identifier'),
                title = item.get('title'),
                description = item.get('description'),
                vulndb_published_date = datetime.strptime(item.get('dc:date'), '%Y-%m-%dT%H:%M:%S+09:00').replace(tzinfo=tzone.get_fixed_timezone(540)),
                vulndb_last_modified = datetime.strptime(item.get('dcterms:modified'), '%Y-%m-%dT%H:%M:%S+09:00').replace(tzinfo=tzone.get_fixed_timezone(540)),
                disclosure_date = datetime.strptime(item.get('dcterms:issued'), '%Y-%m-%dT%H:%M:%S+09:00').replace(tzinfo=tzone.get_fixed_timezone(540)),
                solution = detail['Solution']['SolutionItem']['Description'],
                impact = detail['Impact']['ImpactItem']['Description'],
                link = item.get('link'),
                source = self.ID,
            )
        except Exception as e:
            logger.error(e)

        #self.printQuery(query)
        self.saveQuery(query)

        for vendor in vendor_list:
            try:
                vendor_obj = self.insertVendor(vendor)
                query.vendors.add(vendor_obj)
            except Exception as e:
                logger.error(e)

        for product in product_list:
            try:
                product_obj = self.insertProduct(product)
                query.products.add(product_obj)
            except Exception as e:
                logger.error(e)

        for ref in ref_list:
            try:
                ref_obj = self.insertRef(ref)
                query.references.add(ref_obj)
            except Exception as e:
                logger.error(e)

        for nvd in nvd_list:
            try:
                nvd_obj = self.insertNvd(nvd)
                query.nvds.add(nvd_obj)
            except Exception as e:
                logger.error(e)

        for cvss in cvss_list:
            try:
                cvss_obj = self.insertCvss(cvss)
                query.cvsses.add(cvss_obj)
            except Exception as e:
                logger.error(e)