Python date.min方法代码示例

# 需要导入模块: from datetime import date [as 别名]
# 或者: from datetime.date import min [as 别名]
def get_date(self, instance):
        user = instance.id
        today = date.today()

        if instance.date is not None:
            return instance.date

        # calculate last reported day if no specific date is set
        max_absence_date = Absence.objects.filter(user=user, date__lt=today).aggregate(
            date=Max("date")
        )
        max_report_date = Report.objects.filter(user=user, date__lt=today).aggregate(
            date=Max("date")
        )

        last_reported_date = max(
            max_absence_date["date"] or date.min, max_report_date["date"] or date.min
        )

        instance.date = last_reported_date
        return instance.date 

# 需要导入模块: from datetime import date [as 别名]
# 或者: from datetime.date import min [as 别名]
def start(self, data):
        # write down the 'reset when' value
        if not isinstance(self.p.when, integer_types):  # expect time/datetime
            self._rstwhen = self.p.when
            self._tzdata = self.p.tzdata
        else:
            self._tzdata = data if self.p.tzdata is None else self.p.tzdata

            if self.p.when == SESSION_START:
                self._rstwhen = self._tzdata.p.sessionstart
            elif self.p.when == SESSION_END:
                self._rstwhen = self._tzdata.p.sessionend

        self._isdata = isinstance(self._tzdata, AbstractDataBase)
        self._reset_when()

        self._nexteos = datetime.min
        self._curdate = date.min

        self._curmonth = -1  # non-existent month
        self._monthmask = collections.deque()

        self._curweek = -1  # non-existent week
        self._weekmask = collections.deque() 

# 需要导入模块: from datetime import date [as 别名]
# 或者: from datetime.date import min [as 别名]
def cast_date(value, connection):
    """Cast a date value."""
    # The output format depends on the server setting DateStyle.  The default
    # setting ISO and the setting for German are actually unambiguous.  The
    # order of days and months in the other two settings is however ambiguous,
    # so at least here we need to consult the setting to properly parse values.
    if value == '-infinity':
        return date.min
    if value == 'infinity':
        return date.max
    value = value.split()
    if value[-1] == 'BC':
        return date.min
    value = value[0]
    if len(value) > 10:
        return date.max
    fmt = connection.date_format()
    return datetime.strptime(value, fmt).date() 

# 需要导入模块: from datetime import date [as 别名]
# 或者: from datetime.date import min [as 别名]
def cast_timestamp(value, connection):
    """Cast a timestamp value."""
    if value == '-infinity':
        return datetime.min
    if value == 'infinity':
        return datetime.max
    value = value.split()
    if value[-1] == 'BC':
        return datetime.min
    fmt = connection.date_format()
    if fmt.endswith('-%Y') and len(value) > 2:
        value = value[1:5]
        if len(value[3]) > 4:
            return datetime.max
        fmt = ['%d %b' if fmt.startswith('%d') else '%b %d',
            '%H:%M:%S.%f' if len(value[2]) > 8 else '%H:%M:%S', '%Y']
    else:
        if len(value[0]) > 10:
            return datetime.max
        fmt = [fmt, '%H:%M:%S.%f' if len(value[1]) > 8 else '%H:%M:%S']
    return datetime.strptime(' '.join(value), ' '.join(fmt)) 

# 需要导入模块: from datetime import date [as 别名]
# 或者: from datetime.date import min [as 别名]
def testTruncateRestart(self):
        truncate = self.db.truncate
        self.assertRaises(TypeError, truncate, 'test_table', restart='invalid')
        query = self.db.query
        self.createTable('test_table', 'n serial, t text')
        for n in range(3):
            query("insert into test_table (t) values ('test')")
        q = "select count(n), min(n), max(n) from test_table"
        r = query(q).getresult()[0]
        self.assertEqual(r, (3, 1, 3))
        truncate('test_table')
        r = query(q).getresult()[0]
        self.assertEqual(r, (0, None, None))
        for n in range(3):
            query("insert into test_table (t) values ('test')")
        r = query(q).getresult()[0]
        self.assertEqual(r, (3, 4, 6))
        truncate('test_table', restart=True)
        r = query(q).getresult()[0]
        self.assertEqual(r, (0, None, None))
        for n in range(3):
            query("insert into test_table (t) values ('test')")
        r = query(q).getresult()[0]
        self.assertEqual(r, (3, 1, 3)) 

# 需要导入模块: from datetime import date [as 别名]
# 或者: from datetime.date import min [as 别名]
def testDate(self):
        query = self.db.query
        for datestyle in ('ISO', 'Postgres, MDY', 'Postgres, DMY',
                'SQL, MDY', 'SQL, DMY', 'German'):
            self.db.set_parameter('datestyle', datestyle)
            d = date(2016, 3, 14)
            q = "select $1::date"
            r = query(q, (d,)).getresult()[0][0]
            self.assertIsInstance(r, date)
            self.assertEqual(r, d)
            q = "select '10000-08-01'::date, '0099-01-08 BC'::date"
            r = query(q).getresult()[0]
            self.assertIsInstance(r[0], date)
            self.assertIsInstance(r[1], date)
            self.assertEqual(r[0], date.max)
            self.assertEqual(r[1], date.min)
        q = "select 'infinity'::date, '-infinity'::date"
        r = query(q).getresult()[0]
        self.assertIsInstance(r[0], date)
        self.assertIsInstance(r[1], date)
        self.assertEqual(r[0], date.max)
        self.assertEqual(r[1], date.min) 

# 需要导入模块: from datetime import date [as 别名]
# 或者: from datetime.date import min [as 别名]
def test_pivot_integer_columns(self):
        # caused by upstream bug in unstack

        d = date.min
        data = list(product(['foo', 'bar'], ['A', 'B', 'C'], ['x1', 'x2'],
                            [d + timedelta(i)
                             for i in range(20)], [1.0]))
        df = DataFrame(data)
        table = df.pivot_table(values=4, index=[0, 1, 3], columns=[2])

        df2 = df.rename(columns=str)
        table2 = df2.pivot_table(
            values='4', index=['0', '1', '3'], columns=['2'])

        tm.assert_frame_equal(table, table2, check_names=False) 

# 需要导入模块: from datetime import date [as 别名]
# 或者: from datetime.date import min [as 别名]
def _make_combined_transactions(self):
        """
        Combine all Transactions and ScheduledTransactions from
        ``self._data_cache`` into one ordered list of similar dicts, adding
        dates to the monthly ScheduledTransactions as appropriate and excluding
        ScheduledTransactions that have been converted to real Transactions.
        Store the finished list back into ``self._data_cache``.
        """
        unordered = []
        # ScheduledTransaction ID to count of real trans for each
        st_ids = defaultdict(int)
        for t in self._data_cache['transactions']:
            unordered.append(self._trans_dict(t))
            if t.scheduled_trans_id is not None:
                st_ids[t.scheduled_trans_id] += 1
        for t in self._data_cache['st_date']:
            if t.id not in st_ids:
                unordered.append(self._trans_dict(t))
        for t in self._data_cache['st_monthly']:
            if t.id not in st_ids:
                unordered.append(self._trans_dict(t))
        ordered = []
        for t in self._data_cache['st_per_period']:
            d = self._trans_dict(t)
            for _ in range(0, (t.num_per_period - st_ids[t.id])):
                ordered.append(d)
        for t in sorted(unordered, key=lambda k: k['date']):
            ordered.append(t)

        def sortkey(k):
            d = k.get('date', None)
            if d is None:
                d = date.min
            return d, k['amount']

        return sorted(ordered, key=sortkey) 

# 需要导入模块: from datetime import date [as 别名]
# 或者: from datetime.date import min [as 别名]
def __init__(self, env, retry_times=5, retry_interval=1):
        self._env = env

        self._retry_times = retry_times
        self._retry_interval = retry_interval

        self._cache = DataCache()

        self._query_returns = {}
        self._data_update_date = date.min

        self.td_api = None

        Environment.get_ins_dict = self.get_ins_dict 

# 需要导入模块: from datetime import date [as 别名]
# 或者: from datetime.date import min [as 别名]
def test_timespan_list():
    x = N([])
    assert x._t == _k.KN
    d = timedelta(1, 2, 3)
    x = N([None, d, timedelta.max, timedelta.min])
    assert eq(x, q('0N 1D00:00:02.000003 0W -0Wn')) 

# 需要导入模块: from datetime import date [as 别名]
# 或者: from datetime.date import min [as 别名]
def test_date_and_month_extremes():
    dates = [date.min, date.max]
    assert eq(M(dates), q('0001.01 9999.12m'))
    assert eq(D(dates), q('0001.01.01 9999.12.31')) 

# 需要导入模块: from datetime import date [as 别名]
# 或者: from datetime.date import min [as 别名]
def _reset_when(self, ddate=datetime.min):
        self._when = self._rstwhen
        self._dtwhen = self._dwhen = None

        self._lastcall = ddate 

# 需要导入模块: from datetime import date [as 别名]
# 或者: from datetime.date import min [as 别名]
def _check_week(self, ddate=date.min):
        if not self.p.weekdays:
            return True

        _, dweek, dwkday = ddate.isocalendar()

        mask = self._weekmask
        daycarry = False
        if dweek != self._curweek:
            self._curweek = dweek  # write down new month
            daycarry = self.p.weekcarry and bool(mask)
            self._weekmask = mask = collections.deque(self.p.weekdays)

        dc = bisect.bisect_left(mask, dwkday)  # "left" for days before dday
        daycarry = daycarry or (self.p.weekcarry and dc > 0)
        if dc < len(mask):
            curday = bisect.bisect_right(mask, dwkday, lo=dc) > 0  # check dday
            dc += curday
        else:
            curday = False

        while dc:
            mask.popleft()
            dc -= 1

        return daycarry or curday 

# 需要导入模块: from datetime import date [as 别名]
# 或者: from datetime.date import min [as 别名]
def cast_timestamptz(value, connection):
    """Cast a timestamptz value."""
    if value == '-infinity':
        return datetime.min
    if value == 'infinity':
        return datetime.max
    value = value.split()
    if value[-1] == 'BC':
        return datetime.min
    fmt = connection.date_format()
    if fmt.endswith('-%Y') and len(value) > 2:
        value = value[1:]
        if len(value[3]) > 4:
            return datetime.max
        fmt = ['%d %b' if fmt.startswith('%d') else '%b %d',
            '%H:%M:%S.%f' if len(value[2]) > 8 else '%H:%M:%S', '%Y']
        value, tz = value[:-1], value[-1]
    else:
        if fmt.startswith('%Y-'):
            tz = _re_timezone.match(value[1])
            if tz:
                value[1], tz = tz.groups()
            else:
                tz = '+0000'
        else:
            value, tz = value[:-1], value[-1]
        if len(value[0]) > 10:
            return datetime.max
        fmt = [fmt, '%H:%M:%S.%f' if len(value[1]) > 8 else '%H:%M:%S']
    if _has_timezone:
        value.append(_timezone_as_offset(tz))
        fmt.append('%z')
        return datetime.strptime(' '.join(value), ' '.join(fmt))
    return datetime.strptime(' '.join(value), ' '.join(fmt)).replace(
        tzinfo=_get_timezone(tz)) 

# 需要导入模块: from datetime import date [as 别名]
# 或者: from datetime.date import min [as 别名]
def testTimestamp(self):
        query = self.db.query
        for datestyle in ('ISO', 'Postgres, MDY', 'Postgres, DMY',
                'SQL, MDY', 'SQL, DMY', 'German'):
            self.db.set_parameter('datestyle', datestyle)
            d = datetime(2016, 3, 14)
            q = "select $1::timestamp"
            r = query(q, (d,)).getresult()[0][0]
            self.assertIsInstance(r, datetime)
            self.assertEqual(r, d)
            d = datetime(2016, 3, 14, 15, 9, 26)
            q = "select $1::timestamp"
            r = query(q, (d,)).getresult()[0][0]
            self.assertIsInstance(r, datetime)
            self.assertEqual(r, d)
            d = datetime(2016, 3, 14, 15, 9, 26, 535897)
            q = "select $1::timestamp"
            r = query(q, (d,)).getresult()[0][0]
            self.assertIsInstance(r, datetime)
            self.assertEqual(r, d)
            q = ("select '10000-08-01 AD'::timestamp,"
                " '0099-01-08 BC'::timestamp")
            r = query(q).getresult()[0]
            self.assertIsInstance(r[0], datetime)
            self.assertIsInstance(r[1], datetime)
            self.assertEqual(r[0], datetime.max)
            self.assertEqual(r[1], datetime.min)
        q = "select 'infinity'::timestamp, '-infinity'::timestamp"
        r = query(q).getresult()[0]
        self.assertIsInstance(r[0], datetime)
        self.assertIsInstance(r[1], datetime)
        self.assertEqual(r[0], datetime.max)
        self.assertEqual(r[1], datetime.min)