Python datetime.max方法代码示例

# 需要导入模块: from datetime import datetime [as 别名]
# 或者: from datetime.datetime import max [as 别名]
def time_coverage(self, value):
        if self.single_file:
            if value is None:
                # The default for single file filesets:
                self._time_coverage = [
                    datetime.min,
                    datetime.max
                ]
            else:
                self._time_coverage = [
                    to_datetime(value[0]),
                    to_datetime(value[1]),
                ]
        elif value is not None:
            self._time_coverage = to_timedelta(value)
        else:
            self._time_coverage = None

        # Reset the info cache because some file information may have changed
        # now
        self.info_cache = {} 

# 需要导入模块: from datetime import datetime [as 别名]
# 或者: from datetime.datetime import max [as 别名]
def test_extreme_ordinals(self):
        a = self.theclass.min
        a = self.theclass(a.year, a.month, a.day)  # get rid of time parts
        aord = a.toordinal()
        b = a.fromordinal(aord)
        self.assertEqual(a, b)

        self.assertRaises(ValueError, lambda: a.fromordinal(aord - 1))

        b = a + timedelta(days=1)
        self.assertEqual(b.toordinal(), aord + 1)
        self.assertEqual(b, self.theclass.fromordinal(aord + 1))

        a = self.theclass.max
        a = self.theclass(a.year, a.month, a.day)  # get rid of time parts
        aord = a.toordinal()
        b = a.fromordinal(aord)
        self.assertEqual(a, b)

        self.assertRaises(ValueError, lambda: a.fromordinal(aord + 1))

        b = a - timedelta(days=1)
        self.assertEqual(b.toordinal(), aord - 1)
        self.assertEqual(b, self.theclass.fromordinal(aord - 1)) 

# 需要导入模块: from datetime import datetime [as 别名]
# 或者: from datetime.datetime import max [as 别名]
def test_max_runs_when_no_files(self):

        child_pipe, parent_pipe = multiprocessing.Pipe()

        with TemporaryDirectory(prefix="empty-airflow-dags-") as dags_folder:
            async_mode = 'sqlite' not in conf.get('core', 'sql_alchemy_conn')
            manager = DagFileProcessorManager(
                dag_directory=dags_folder,
                max_runs=1,
                processor_factory=FakeDagFileProcessorRunner._fake_dag_processor_factory,
                processor_timeout=timedelta.max,
                signal_conn=child_pipe,
                dag_ids=[],
                pickle_dags=False,
                async_mode=async_mode)

            self.run_processor_manager_one_loop(manager, parent_pipe)
        child_pipe.close()
        parent_pipe.close() 

# 需要导入模块: from datetime import datetime [as 别名]
# 或者: from datetime.datetime import max [as 别名]
def test_set_file_paths_when_processor_file_path_not_in_new_file_paths(self):
        manager = DagFileProcessorManager(
            dag_directory='directory',
            max_runs=1,
            processor_factory=MagicMock().return_value,
            processor_timeout=timedelta.max,
            signal_conn=MagicMock(),
            dag_ids=[],
            pickle_dags=False,
            async_mode=True)

        mock_processor = MagicMock()
        mock_processor.stop.side_effect = AttributeError(
            'DagFileProcessor object has no attribute stop')
        mock_processor.terminate.side_effect = None

        manager._processors['missing_file.txt'] = mock_processor
        manager._file_stats['missing_file.txt'] = DagFileStat(0, 0, None, None, 0)

        manager.set_file_paths(['abc.txt'])
        self.assertDictEqual(manager._processors, {}) 

# 需要导入模块: from datetime import datetime [as 别名]
# 或者: from datetime.datetime import max [as 别名]
def test_set_file_paths_when_processor_file_path_is_in_new_file_paths(self):
        manager = DagFileProcessorManager(
            dag_directory='directory',
            max_runs=1,
            processor_factory=MagicMock().return_value,
            processor_timeout=timedelta.max,
            signal_conn=MagicMock(),
            dag_ids=[],
            pickle_dags=False,
            async_mode=True)

        mock_processor = MagicMock()
        mock_processor.stop.side_effect = AttributeError(
            'DagFileProcessor object has no attribute stop')
        mock_processor.terminate.side_effect = None

        manager._processors['abc.txt'] = mock_processor

        manager.set_file_paths(['abc.txt'])
        self.assertDictEqual(manager._processors, {'abc.txt': mock_processor}) 

# 需要导入模块: from datetime import datetime [as 别名]
# 或者: from datetime.datetime import max [as 别名]
def test_parse_once(self):
        test_dag_path = os.path.join(TEST_DAG_FOLDER, 'test_scheduler_dags.py')
        async_mode = 'sqlite' not in conf.get('core', 'sql_alchemy_conn')
        processor_agent = DagFileProcessorAgent(test_dag_path,
                                                1,
                                                type(self)._processor_factory,
                                                timedelta.max,
                                                [],
                                                False,
                                                async_mode)
        processor_agent.start()
        parsing_result = []
        if not async_mode:
            processor_agent.run_single_parsing_loop()
        while not processor_agent.done:
            if not async_mode:
                processor_agent.wait_until_finished()
            parsing_result.extend(processor_agent.harvest_simple_dags())

        dag_ids = [result.dag_id for result in parsing_result]
        self.assertEqual(dag_ids.count('test_start_date_scheduling'), 1) 

# 需要导入模块: from datetime import datetime [as 别名]
# 或者: from datetime.datetime import max [as 别名]
def test_launch_process(self):
        test_dag_path = os.path.join(TEST_DAG_FOLDER, 'test_scheduler_dags.py')
        async_mode = 'sqlite' not in conf.get('core', 'sql_alchemy_conn')

        log_file_loc = conf.get('logging', 'DAG_PROCESSOR_MANAGER_LOG_LOCATION')
        try:
            os.remove(log_file_loc)
        except OSError:
            pass

        # Starting dag processing with 0 max_runs to avoid redundant operations.
        processor_agent = DagFileProcessorAgent(test_dag_path,
                                                0,
                                                type(self)._processor_factory,
                                                timedelta.max,
                                                [],
                                                False,
                                                async_mode)
        processor_agent.start()
        if not async_mode:
            processor_agent.run_single_parsing_loop()

        processor_agent._process.join()

        self.assertTrue(os.path.isfile(log_file_loc)) 

# 需要导入模块: from datetime import datetime [as 别名]
# 或者: from datetime.datetime import max [as 别名]
def test_overflow(self):
        tiny = timedelta.resolution

        td = timedelta.min + tiny
        td -= tiny  # no problem
        self.assertRaises(OverflowError, td.__sub__, tiny)
        self.assertRaises(OverflowError, td.__add__, -tiny)

        td = timedelta.max - tiny
        td += tiny  # no problem
        self.assertRaises(OverflowError, td.__add__, tiny)
        self.assertRaises(OverflowError, td.__sub__, -tiny)

        self.assertRaises(OverflowError, lambda: -timedelta.max)

        day = timedelta(1)
        self.assertRaises(OverflowError, day.__mul__, 10**9)
        self.assertRaises(OverflowError, day.__mul__, 1e9)
        self.assertRaises(OverflowError, day.__truediv__, 1e-20)
        self.assertRaises(OverflowError, day.__truediv__, 1e-10)
        self.assertRaises(OverflowError, day.__truediv__, 9e-10) 

# 需要导入模块: from datetime import datetime [as 别名]
# 或者: from datetime.datetime import max [as 别名]
def find_max_value(test_func, initial_value):
    """
    Starting from an initial number (integer or float), find the maximum value
    for which the test function does not yet fail, and return that maximum
    value.
    """
    assert isinstance(initial_value, int) and initial_value > 0

    fails = FailsArray(test_func)
    value = initial_value

    # Advance the value exponentially beyond the max value
    while fails[value] == 0:
        value *= 2

    # Search for the exact max value in the previous range. We search for the
    # boundary where the fails array goes from 0 to 1.
    boundary = 0.5
    value = binary_search(fails, boundary, value // 2, value)
    max_value = value - 1

    # Verify that we found exactly the maximum:
    assert fails[max_value] == 0 and fails[max_value + 1] == 1, \
        "max_value={}, fails[+-2]: {}, {}, {}, {}, {}".\
        format(max_value, fails[max_value - 2], fails[max_value - 1],
               fails[max_value], fails[max_value + 1], fails[max_value + 2])

    return max_value 

# 需要导入模块: from datetime import datetime [as 别名]
# 或者: from datetime.datetime import max [as 别名]
def x_test_print_datetime_max(self):
        """Print datetime.max."""
        print("\nMax value for Python datetime (datetime.max): {!r}".
              format(datetime.max))
        sys.stdout.flush() 

# 需要导入模块: from datetime import datetime [as 别名]
# 或者: from datetime.datetime import max [as 别名]
def test_datetime_max(self):
        """Test timestamp_from_datetime() with datetime.max."""

        # The test is that it does not raise an exception:
        timestamp_from_datetime(datetime.max) 

# 需要导入模块: from datetime import datetime [as 别名]
# 或者: from datetime.datetime import max [as 别名]
def __init__(self):
        self.start = datetime.max
        self.end = datetime.min
        self.packets = 0
        self.bytes = 0 

# 需要导入模块: from datetime import datetime [as 别名]
# 或者: from datetime.datetime import max [as 别名]
def generate_auth_token(user_id):
    host_list = request.host.rsplit(':')
    if len(host_list) == 1:
        host = ':'.join(host_list)
    else:
        host = ':'.join(host_list[0:-1])
    if host.startswith('127.') or host.lower() == 'localhost' or host.startswith('[::ffff:7f'):
        warning = _('PLease access calibre-web from non localhost to get valid api_endpoint for kobo device')
        return render_title_template(
            "generate_kobo_auth_url.html",
            title=_(u"Kobo Setup"),
            warning = warning
        )
    else:
        # Invalidate any prevously generated Kobo Auth token for this user.
        auth_token = ub.session.query(ub.RemoteAuthToken).filter(
            ub.RemoteAuthToken.user_id == user_id
        ).filter(ub.RemoteAuthToken.token_type==1).first()

        if not auth_token:
            auth_token = ub.RemoteAuthToken()
            auth_token.user_id = user_id
            auth_token.expiration = datetime.max
            auth_token.auth_token = (hexlify(urandom(16))).decode("utf-8")
            auth_token.token_type = 1

            ub.session.add(auth_token)
            ub.session.commit()
        return render_title_template(
            "generate_kobo_auth_url.html",
            title=_(u"Kobo Setup"),
            kobo_auth_url=url_for(
                "kobo.TopLevelEndpoint", auth_token=auth_token.auth_token, _external=True
            ),
            warning = False
        ) 

# 需要导入模块: from datetime import datetime [as 别名]
# 或者: from datetime.datetime import max [as 别名]
def _get_common_time_period(
            primary, secondary, max_interval, start, end):
        max_interval = pd.Timedelta(max_interval)

        # We want to select a common time window from both datasets,
        # aligned to the primary's time coverage. Because xarray has a
        # very annoying bug in time retrieving
        # (https://github.com/pydata/xarray/issues/1240), this is a
        # little bit cumbersome:
        common_start = max(
            start,
            pd.Timestamp(primary.time.min().item(0)) - max_interval,
            pd.Timestamp(secondary.time.min().item(0)) - max_interval
        )
        common_end = min(
            end,
            pd.Timestamp(primary.time.max().item(0)) + max_interval,
            pd.Timestamp(secondary.time.max().item(0)) + max_interval
        )

        primary_period = primary.time.where(
            (primary.time.values >= np.datetime64(common_start))
            & (primary.time.values <= np.datetime64(common_end))
        ).dropna(primary.time.dims[0])

        secondary_period = secondary.time.where(
            (secondary.time.values >= np.datetime64(common_start))
            & (secondary.time.values <= np.datetime64(common_end))
        ).dropna(secondary.time.dims[0])

        return primary_period, secondary_period 

# 需要导入模块: from datetime import datetime [as 别名]
# 或者: from datetime.datetime import max [as 别名]
def _bin_pairs(chunk1_start, chunk1, primary, secondary, max_interval):
        """"""
        chunk2_start = chunk1_start - max_interval
        chunk2_end = chunk1.index.max() + max_interval
        offset1 = primary.index.searchsorted(chunk1_start)
        offset2 = secondary.index.searchsorted(chunk2_start)
        chunk2 = secondary.loc[chunk2_start:chunk2_end]
        return offset1, chunk1, offset2, chunk2