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periodic server maintanance task added. confirmed config messages and data files are removed during maintanance task

env/lib/python3.5/site-packages/apscheduler/jobstores/memory.py

+from __future__ import absolute_import
+
+from apscheduler.jobstores.base import BaseJobStore, JobLookupError, ConflictingIdError
+from apscheduler.util import datetime_to_utc_timestamp
+
+
+class MemoryJobStore(BaseJobStore):
+    """
+    Stores jobs in an array in RAM. Provides no persistence support.
+
+    Plugin alias: ``memory``
+    """
+
+    def __init__(self):
+        super(MemoryJobStore, self).__init__()
+        # list of (job, timestamp), sorted by next_run_time and job id (ascending)
+        self._jobs = []
+        self._jobs_index = {}  # id -> (job, timestamp) lookup table
+
+    def lookup_job(self, job_id):
+        return self._jobs_index.get(job_id, (None, None))[0]
+
+    def get_due_jobs(self, now):
+        now_timestamp = datetime_to_utc_timestamp(now)
+        pending = []
+        for job, timestamp in self._jobs:
+            if timestamp is None or timestamp > now_timestamp:
+                break
+            pending.append(job)
+
+        return pending
+
+    def get_next_run_time(self):
+        return self._jobs[0][0].next_run_time if self._jobs else None
+
+    def get_all_jobs(self):
+        return [j[0] for j in self._jobs]
+
+    def add_job(self, job):
+        if job.id in self._jobs_index:
+            raise ConflictingIdError(job.id)
+
+        timestamp = datetime_to_utc_timestamp(job.next_run_time)
+        index = self._get_job_index(timestamp, job.id)
+        self._jobs.insert(index, (job, timestamp))
+        self._jobs_index[job.id] = (job, timestamp)
+
+    def update_job(self, job):
+        old_job, old_timestamp = self._jobs_index.get(job.id, (None, None))
+        if old_job is None:
+            raise JobLookupError(job.id)
+
+        # If the next run time has not changed, simply replace the job in its present index.
+        # Otherwise, reinsert the job to the list to preserve the ordering.
+        old_index = self._get_job_index(old_timestamp, old_job.id)
+        new_timestamp = datetime_to_utc_timestamp(job.next_run_time)
+        if old_timestamp == new_timestamp:
+            self._jobs[old_index] = (job, new_timestamp)
+        else:
+            del self._jobs[old_index]
+            new_index = self._get_job_index(new_timestamp, job.id)
+            self._jobs.insert(new_index, (job, new_timestamp))
+
+        self._jobs_index[old_job.id] = (job, new_timestamp)
+
+    def remove_job(self, job_id):
+        job, timestamp = self._jobs_index.get(job_id, (None, None))
+        if job is None:
+            raise JobLookupError(job_id)
+
+        index = self._get_job_index(timestamp, job_id)
+        del self._jobs[index]
+        del self._jobs_index[job.id]
+
+    def remove_all_jobs(self):
+        self._jobs = []
+        self._jobs_index = {}
+
+    def shutdown(self):
+        self.remove_all_jobs()
+
+    def _get_job_index(self, timestamp, job_id):
+        """
+        Returns the index of the given job, or if it's not found, the index where the job should be
+        inserted based on the given timestamp.
+
+        :type timestamp: int
+        :type job_id: str
+
+        """
+        lo, hi = 0, len(self._jobs)
+        timestamp = float('inf') if timestamp is None else timestamp
+        while lo < hi:
+            mid = (lo + hi) // 2
+            mid_job, mid_timestamp = self._jobs[mid]
+            mid_timestamp = float('inf') if mid_timestamp is None else mid_timestamp
+            if mid_timestamp > timestamp:
+                hi = mid
+            elif mid_timestamp < timestamp:
+                lo = mid + 1
+            elif mid_job.id > job_id:
+                hi = mid
+            elif mid_job.id < job_id:
+                lo = mid + 1
+            else:
+                return mid
+
+        return lo

env/lib/python3.5/site-packages/apscheduler/jobstores/mongodb.py

+from __future__ import absolute_import
+import warnings
+
+from apscheduler.jobstores.base import BaseJobStore, JobLookupError, ConflictingIdError
+from apscheduler.util import maybe_ref, datetime_to_utc_timestamp, utc_timestamp_to_datetime
+from apscheduler.job import Job
+
+try:
+    import cPickle as pickle
+except ImportError:  # pragma: nocover
+    import pickle
+
+try:
+    from bson.binary import Binary
+    from pymongo.errors import DuplicateKeyError
+    from pymongo import MongoClient, ASCENDING
+except ImportError:  # pragma: nocover
+    raise ImportError('MongoDBJobStore requires PyMongo installed')
+
+
+class MongoDBJobStore(BaseJobStore):
+    """
+    Stores jobs in a MongoDB database. Any leftover keyword arguments are directly passed to
+    pymongo's `MongoClient
+    <http://api.mongodb.org/python/current/api/pymongo/mongo_client.html#pymongo.mongo_client.MongoClient>`_.
+
+    Plugin alias: ``mongodb``
+
+    :param str database: database to store jobs in
+    :param str collection: collection to store jobs in
+    :param client: a :class:`~pymongo.mongo_client.MongoClient` instance to use instead of
+        providing connection arguments
+    :param int pickle_protocol: pickle protocol level to use (for serialization), defaults to the
+        highest available
+    """
+
+    def __init__(self, database='apscheduler', collection='jobs', client=None,
+                 pickle_protocol=pickle.HIGHEST_PROTOCOL, **connect_args):
+        super(MongoDBJobStore, self).__init__()
+        self.pickle_protocol = pickle_protocol
+
+        if not database:
+            raise ValueError('The "database" parameter must not be empty')
+        if not collection:
+            raise ValueError('The "collection" parameter must not be empty')
+
+        if client:
+            self.client = maybe_ref(client)
+        else:
+            connect_args.setdefault('w', 1)
+            self.client = MongoClient(**connect_args)
+
+        self.collection = self.client[database][collection]
+
+    def start(self, scheduler, alias):
+        super(MongoDBJobStore, self).start(scheduler, alias)
+        self.collection.ensure_index('next_run_time', sparse=True)
+
+    @property
+    def connection(self):
+        warnings.warn('The "connection" member is deprecated -- use "client" instead',
+                      DeprecationWarning)
+        return self.client
+
+    def lookup_job(self, job_id):
+        document = self.collection.find_one(job_id, ['job_state'])
+        return self._reconstitute_job(document['job_state']) if document else None
+
+    def get_due_jobs(self, now):
+        timestamp = datetime_to_utc_timestamp(now)
+        return self._get_jobs({'next_run_time': {'$lte': timestamp}})
+
+    def get_next_run_time(self):
+        document = self.collection.find_one({'next_run_time': {'$ne': None}},
+                                            projection=['next_run_time'],
+                                            sort=[('next_run_time', ASCENDING)])
+        return utc_timestamp_to_datetime(document['next_run_time']) if document else None
+
+    def get_all_jobs(self):
+        jobs = self._get_jobs({})
+        self._fix_paused_jobs_sorting(jobs)
+        return jobs
+
+    def add_job(self, job):
+        try:
+            self.collection.insert({
+                '_id': job.id,
+                'next_run_time': datetime_to_utc_timestamp(job.next_run_time),
+                'job_state': Binary(pickle.dumps(job.__getstate__(), self.pickle_protocol))
+            })
+        except DuplicateKeyError:
+            raise ConflictingIdError(job.id)
+
+    def update_job(self, job):
+        changes = {
+            'next_run_time': datetime_to_utc_timestamp(job.next_run_time),
+            'job_state': Binary(pickle.dumps(job.__getstate__(), self.pickle_protocol))
+        }
+        result = self.collection.update({'_id': job.id}, {'$set': changes})
+        if result and result['n'] == 0:
+            raise JobLookupError(job.id)
+
+    def remove_job(self, job_id):
+        result = self.collection.remove(job_id)
+        if result and result['n'] == 0:
+            raise JobLookupError(job_id)
+
+    def remove_all_jobs(self):
+        self.collection.remove()
+
+    def shutdown(self):
+        self.client.close()
+
+    def _reconstitute_job(self, job_state):
+        job_state = pickle.loads(job_state)
+        job = Job.__new__(Job)
+        job.__setstate__(job_state)
+        job._scheduler = self._scheduler
+        job._jobstore_alias = self._alias
+        return job
+
+    def _get_jobs(self, conditions):
+        jobs = []
+        failed_job_ids = []
+        for document in self.collection.find(conditions, ['_id', 'job_state'],
+                                             sort=[('next_run_time', ASCENDING)]):
+            try:
+                jobs.append(self._reconstitute_job(document['job_state']))
+            except BaseException:
+                self._logger.exception('Unable to restore job "%s" -- removing it',
+                                       document['_id'])
+                failed_job_ids.append(document['_id'])
+
+        # Remove all the jobs we failed to restore
+        if failed_job_ids:
+            self.collection.remove({'_id': {'$in': failed_job_ids}})
+
+        return jobs
+
+    def __repr__(self):
+        return '<%s (client=%s)>' % (self.__class__.__name__, self.client)

env/lib/python3.5/site-packages/apscheduler/jobstores/redis.py

+from __future__ import absolute_import
+from datetime import datetime
+
+from pytz import utc
+import six
+
+from apscheduler.jobstores.base import BaseJobStore, JobLookupError, ConflictingIdError
+from apscheduler.util import datetime_to_utc_timestamp, utc_timestamp_to_datetime
+from apscheduler.job import Job
+
+try:
+    import cPickle as pickle
+except ImportError:  # pragma: nocover
+    import pickle
+
+try:
+    from redis import Redis
+except ImportError:  # pragma: nocover
+    raise ImportError('RedisJobStore requires redis installed')
+
+
+class RedisJobStore(BaseJobStore):
+    """
+    Stores jobs in a Redis database. Any leftover keyword arguments are directly passed to redis's
+    :class:`~redis.StrictRedis`.
+
+    Plugin alias: ``redis``
+
+    :param int db: the database number to store jobs in
+    :param str jobs_key: key to store jobs in
+    :param str run_times_key: key to store the jobs' run times in
+    :param int pickle_protocol: pickle protocol level to use (for serialization), defaults to the
+        highest available
+    """
+
+    def __init__(self, db=0, jobs_key='apscheduler.jobs', run_times_key='apscheduler.run_times',
+                 pickle_protocol=pickle.HIGHEST_PROTOCOL, **connect_args):
+        super(RedisJobStore, self).__init__()
+
+        if db is None:
+            raise ValueError('The "db" parameter must not be empty')
+        if not jobs_key:
+            raise ValueError('The "jobs_key" parameter must not be empty')
+        if not run_times_key:
+            raise ValueError('The "run_times_key" parameter must not be empty')
+
+        self.pickle_protocol = pickle_protocol
+        self.jobs_key = jobs_key
+        self.run_times_key = run_times_key
+        self.redis = Redis(db=int(db), **connect_args)
+
+    def lookup_job(self, job_id):
+        job_state = self.redis.hget(self.jobs_key, job_id)
+        return self._reconstitute_job(job_state) if job_state else None
+
+    def get_due_jobs(self, now):
+        timestamp = datetime_to_utc_timestamp(now)
+        job_ids = self.redis.zrangebyscore(self.run_times_key, 0, timestamp)
+        if job_ids:
+            job_states = self.redis.hmget(self.jobs_key, *job_ids)
+            return self._reconstitute_jobs(six.moves.zip(job_ids, job_states))
+        return []
+
+    def get_next_run_time(self):
+        next_run_time = self.redis.zrange(self.run_times_key, 0, 0, withscores=True)
+        if next_run_time:
+            return utc_timestamp_to_datetime(next_run_time[0][1])
+
+    def get_all_jobs(self):
+        job_states = self.redis.hgetall(self.jobs_key)
+        jobs = self._reconstitute_jobs(six.iteritems(job_states))
+        paused_sort_key = datetime(9999, 12, 31, tzinfo=utc)
+        return sorted(jobs, key=lambda job: job.next_run_time or paused_sort_key)
+
+    def add_job(self, job):
+        if self.redis.hexists(self.jobs_key, job.id):
+            raise ConflictingIdError(job.id)
+
+        with self.redis.pipeline() as pipe:
+            pipe.multi()
+            pipe.hset(self.jobs_key, job.id, pickle.dumps(job.__getstate__(),
+                                                          self.pickle_protocol))
+            if job.next_run_time:
+                pipe.zadd(self.run_times_key,
+                          {job.id: datetime_to_utc_timestamp(job.next_run_time)})
+
+            pipe.execute()
+
+    def update_job(self, job):
+        if not self.redis.hexists(self.jobs_key, job.id):
+            raise JobLookupError(job.id)
+
+        with self.redis.pipeline() as pipe:
+            pipe.hset(self.jobs_key, job.id, pickle.dumps(job.__getstate__(),
+                                                          self.pickle_protocol))
+            if job.next_run_time:
+                pipe.zadd(self.run_times_key,
+                          {job.id: datetime_to_utc_timestamp(job.next_run_time)})
+            else:
+                pipe.zrem(self.run_times_key, job.id)
+
+            pipe.execute()
+
+    def remove_job(self, job_id):
+        if not self.redis.hexists(self.jobs_key, job_id):
+            raise JobLookupError(job_id)
+
+        with self.redis.pipeline() as pipe:
+            pipe.hdel(self.jobs_key, job_id)
+            pipe.zrem(self.run_times_key, job_id)
+            pipe.execute()
+
+    def remove_all_jobs(self):
+        with self.redis.pipeline() as pipe:
+            pipe.delete(self.jobs_key)
+            pipe.delete(self.run_times_key)
+            pipe.execute()
+
+    def shutdown(self):
+        self.redis.connection_pool.disconnect()
+
+    def _reconstitute_job(self, job_state):
+        job_state = pickle.loads(job_state)
+        job = Job.__new__(Job)
+        job.__setstate__(job_state)
+        job._scheduler = self._scheduler
+        job._jobstore_alias = self._alias
+        return job
+
+    def _reconstitute_jobs(self, job_states):
+        jobs = []
+        failed_job_ids = []
+        for job_id, job_state in job_states:
+            try:
+                jobs.append(self._reconstitute_job(job_state))
+            except BaseException:
+                self._logger.exception('Unable to restore job "%s" -- removing it', job_id)
+                failed_job_ids.append(job_id)
+
+        # Remove all the jobs we failed to restore
+        if failed_job_ids:
+            with self.redis.pipeline() as pipe:
+                pipe.hdel(self.jobs_key, *failed_job_ids)
+                pipe.zrem(self.run_times_key, *failed_job_ids)
+                pipe.execute()
+
+        return jobs
+
+    def __repr__(self):
+        return '<%s>' % self.__class__.__name__

env/lib/python3.5/site-packages/apscheduler/jobstores/rethinkdb.py

+from __future__ import absolute_import
+
+from apscheduler.jobstores.base import BaseJobStore, JobLookupError, ConflictingIdError
+from apscheduler.util import maybe_ref, datetime_to_utc_timestamp, utc_timestamp_to_datetime
+from apscheduler.job import Job
+
+try:
+    import cPickle as pickle
+except ImportError:  # pragma: nocover
+    import pickle
+
+try:
+    from rethinkdb import RethinkDB
+except ImportError:  # pragma: nocover
+    raise ImportError('RethinkDBJobStore requires rethinkdb installed')
+
+
+class RethinkDBJobStore(BaseJobStore):
+    """
+    Stores jobs in a RethinkDB database. Any leftover keyword arguments are directly passed to
+    rethinkdb's `RethinkdbClient <http://www.rethinkdb.com/api/#connect>`_.
+
+    Plugin alias: ``rethinkdb``
+
+    :param str database: database to store jobs in
+    :param str collection: collection to store jobs in
+    :param client: a :class:`rethinkdb.net.Connection` instance to use instead of providing
+        connection arguments
+    :param int pickle_protocol: pickle protocol level to use (for serialization), defaults to the
+        highest available
+    """
+
+    def __init__(self, database='apscheduler', table='jobs', client=None,
+                 pickle_protocol=pickle.HIGHEST_PROTOCOL, **connect_args):
+        super(RethinkDBJobStore, self).__init__()
+
+        if not database:
+            raise ValueError('The "database" parameter must not be empty')
+        if not table:
+            raise ValueError('The "table" parameter must not be empty')
+
+        self.database = database
+        self.table_name = table
+        self.table = None
+        self.client = client
+        self.pickle_protocol = pickle_protocol
+        self.connect_args = connect_args
+        self.r = RethinkDB()
+        self.conn = None
+
+    def start(self, scheduler, alias):
+        super(RethinkDBJobStore, self).start(scheduler, alias)
+
+        if self.client:
+            self.conn = maybe_ref(self.client)
+        else:
+            self.conn = self.r.connect(db=self.database, **self.connect_args)
+
+        if self.database not in self.r.db_list().run(self.conn):
+            self.r.db_create(self.database).run(self.conn)
+
+        if self.table_name not in self.r.table_list().run(self.conn):
+            self.r.table_create(self.table_name).run(self.conn)
+
+        if 'next_run_time' not in self.r.table(self.table_name).index_list().run(self.conn):
+            self.r.table(self.table_name).index_create('next_run_time').run(self.conn)
+
+        self.table = self.r.db(self.database).table(self.table_name)
+
+    def lookup_job(self, job_id):
+        results = list(self.table.get_all(job_id).pluck('job_state').run(self.conn))
+        return self._reconstitute_job(results[0]['job_state']) if results else None
+
+    def get_due_jobs(self, now):
+        return self._get_jobs(self.r.row['next_run_time'] <= datetime_to_utc_timestamp(now))
+
+    def get_next_run_time(self):
+        results = list(
+            self.table
+            .filter(self.r.row['next_run_time'] != None)  # noqa
+            .order_by(self.r.asc('next_run_time'))
+            .map(lambda x: x['next_run_time'])
+            .limit(1)
+            .run(self.conn)
+        )
+        return utc_timestamp_to_datetime(results[0]) if results else None
+
+    def get_all_jobs(self):
+        jobs = self._get_jobs()
+        self._fix_paused_jobs_sorting(jobs)
+        return jobs
+
+    def add_job(self, job):
+        job_dict = {
+            'id': job.id,
+            'next_run_time': datetime_to_utc_timestamp(job.next_run_time),
+            'job_state': self.r.binary(pickle.dumps(job.__getstate__(), self.pickle_protocol))
+        }
+        results = self.table.insert(job_dict).run(self.conn)
+        if results['errors'] > 0:
+            raise ConflictingIdError(job.id)
+
+    def update_job(self, job):
+        changes = {
+            'next_run_time': datetime_to_utc_timestamp(job.next_run_time),
+            'job_state': self.r.binary(pickle.dumps(job.__getstate__(), self.pickle_protocol))
+        }
+        results = self.table.get_all(job.id).update(changes).run(self.conn)
+        skipped = False in map(lambda x: results[x] == 0, results.keys())
+        if results['skipped'] > 0 or results['errors'] > 0 or not skipped:
+            raise JobLookupError(job.id)
+
+    def remove_job(self, job_id):
+        results = self.table.get_all(job_id).delete().run(self.conn)
+        if results['deleted'] + results['skipped'] != 1:
+            raise JobLookupError(job_id)
+
+    def remove_all_jobs(self):
+        self.table.delete().run(self.conn)
+
+    def shutdown(self):
+        self.conn.close()
+
+    def _reconstitute_job(self, job_state):
+        job_state = pickle.loads(job_state)
+        job = Job.__new__(Job)
+        job.__setstate__(job_state)
+        job._scheduler = self._scheduler
+        job._jobstore_alias = self._alias
+        return job
+
+    def _get_jobs(self, predicate=None):
+        jobs = []
+        failed_job_ids = []
+        query = (self.table.filter(self.r.row['next_run_time'] != None).filter(predicate)  # noqa
+                 if predicate else self.table)
+        query = query.order_by('next_run_time', 'id').pluck('id', 'job_state')
+
+        for document in query.run(self.conn):
+            try:
+                jobs.append(self._reconstitute_job(document['job_state']))
+            except Exception:
+                self._logger.exception('Unable to restore job "%s" -- removing it', document['id'])
+                failed_job_ids.append(document['id'])
+
+        # Remove all the jobs we failed to restore
+        if failed_job_ids:
+            self.r.expr(failed_job_ids).for_each(
+                lambda job_id: self.table.get_all(job_id).delete()).run(self.conn)
+
+        return jobs
+
+    def __repr__(self):
+        connection = self.conn
+        return '<%s (connection=%s)>' % (self.__class__.__name__, connection)

env/lib/python3.5/site-packages/apscheduler/jobstores/sqlalchemy.py

+from __future__ import absolute_import
+
+from apscheduler.jobstores.base import BaseJobStore, JobLookupError, ConflictingIdError
+from apscheduler.util import maybe_ref, datetime_to_utc_timestamp, utc_timestamp_to_datetime
+from apscheduler.job import Job
+
+try:
+    import cPickle as pickle
+except ImportError:  # pragma: nocover
+    import pickle
+
+try:
+    from sqlalchemy import (
+        create_engine, Table, Column, MetaData, Unicode, Float, LargeBinary, select)
+    from sqlalchemy.exc import IntegrityError
+    from sqlalchemy.sql.expression import null
+except ImportError:  # pragma: nocover
+    raise ImportError('SQLAlchemyJobStore requires SQLAlchemy installed')
+
+
+class SQLAlchemyJobStore(BaseJobStore):
+    """
+    Stores jobs in a database table using SQLAlchemy.
+    The table will be created if it doesn't exist in the database.
+
+    Plugin alias: ``sqlalchemy``
+
+    :param str url: connection string (see
+        :ref:`SQLAlchemy documentation <sqlalchemy:database_urls>` on this)
+    :param engine: an SQLAlchemy :class:`~sqlalchemy.engine.Engine` to use instead of creating a
+        new one based on ``url``
+    :param str tablename: name of the table to store jobs in
+    :param metadata: a :class:`~sqlalchemy.schema.MetaData` instance to use instead of creating a
+        new one
+    :param int pickle_protocol: pickle protocol level to use (for serialization), defaults to the
+        highest available
+    :param str tableschema: name of the (existing) schema in the target database where the table
+        should be
+    :param dict engine_options: keyword arguments to :func:`~sqlalchemy.create_engine`
+        (ignored if ``engine`` is given)
+    """
+
+    def __init__(self, url=None, engine=None, tablename='apscheduler_jobs', metadata=None,
+                 pickle_protocol=pickle.HIGHEST_PROTOCOL, tableschema=None, engine_options=None):
+        super(SQLAlchemyJobStore, self).__init__()
+        self.pickle_protocol = pickle_protocol
+        metadata = maybe_ref(metadata) or MetaData()
+
+        if engine:
+            self.engine = maybe_ref(engine)
+        elif url:
+            self.engine = create_engine(url, **(engine_options or {}))
+        else:
+            raise ValueError('Need either "engine" or "url" defined')
+
+        # 191 = max key length in MySQL for InnoDB/utf8mb4 tables,
+        # 25 = precision that translates to an 8-byte float
+        self.jobs_t = Table(
+            tablename, metadata,
+            Column('id', Unicode(191, _warn_on_bytestring=False), primary_key=True),
+            Column('next_run_time', Float(25), index=True),
+            Column('job_state', LargeBinary, nullable=False),
+            schema=tableschema
+        )
+
+    def start(self, scheduler, alias):
+        super(SQLAlchemyJobStore, self).start(scheduler, alias)
+        self.jobs_t.create(self.engine, True)
+
+    def lookup_job(self, job_id):
+        selectable = select([self.jobs_t.c.job_state]).where(self.jobs_t.c.id == job_id)
+        job_state = self.engine.execute(selectable).scalar()
+        return self._reconstitute_job(job_state) if job_state else None
+
+    def get_due_jobs(self, now):
+        timestamp = datetime_to_utc_timestamp(now)
+        return self._get_jobs(self.jobs_t.c.next_run_time <= timestamp)
+
+    def get_next_run_time(self):
+        selectable = select([self.jobs_t.c.next_run_time]).\
+            where(self.jobs_t.c.next_run_time != null()).\
+            order_by(self.jobs_t.c.next_run_time).limit(1)
+        next_run_time = self.engine.execute(selectable).scalar()
+        return utc_timestamp_to_datetime(next_run_time)
+
+    def get_all_jobs(self):
+        jobs = self._get_jobs()
+        self._fix_paused_jobs_sorting(jobs)
+        return jobs
+
+    def add_job(self, job):
+        insert = self.jobs_t.insert().values(**{
+            'id': job.id,
+            'next_run_time': datetime_to_utc_timestamp(job.next_run_time),
+            'job_state': pickle.dumps(job.__getstate__(), self.pickle_protocol)
+        })
+        try:
+            self.engine.execute(insert)
+        except IntegrityError:
+            raise ConflictingIdError(job.id)
+
+    def update_job(self, job):
+        update = self.jobs_t.update().values(**{
+            'next_run_time': datetime_to_utc_timestamp(job.next_run_time),
+            'job_state': pickle.dumps(job.__getstate__(), self.pickle_protocol)
+        }).where(self.jobs_t.c.id == job.id)
+        result = self.engine.execute(update)
+        if result.rowcount == 0:
+            raise JobLookupError(job.id)
+
+    def remove_job(self, job_id):
+        delete = self.jobs_t.delete().where(self.jobs_t.c.id == job_id)
+        result = self.engine.execute(delete)
+        if result.rowcount == 0:
+            raise JobLookupError(job_id)
+
+    def remove_all_jobs(self):
+        delete = self.jobs_t.delete()
+        self.engine.execute(delete)
+
+    def shutdown(self):
+        self.engine.dispose()
+
+    def _reconstitute_job(self, job_state):
+        job_state = pickle.loads(job_state)
+        job_state['jobstore'] = self
+        job = Job.__new__(Job)
+        job.__setstate__(job_state)
+        job._scheduler = self._scheduler
+        job._jobstore_alias = self._alias
+        return job
+
+    def _get_jobs(self, *conditions):
+        jobs = []
+        selectable = select([self.jobs_t.c.id, self.jobs_t.c.job_state]).\
+            order_by(self.jobs_t.c.next_run_time)
+        selectable = selectable.where(*conditions) if conditions else selectable
+        failed_job_ids = set()
+        for row in self.engine.execute(selectable):
+            try:
+                jobs.append(self._reconstitute_job(row.job_state))
+            except BaseException:
+                self._logger.exception('Unable to restore job "%s" -- removing it', row.id)
+                failed_job_ids.add(row.id)
+
+        # Remove all the jobs we failed to restore
+        if failed_job_ids:
+            delete = self.jobs_t.delete().where(self.jobs_t.c.id.in_(failed_job_ids))
+            self.engine.execute(delete)
+
+        return jobs
+
+    def __repr__(self):
+        return '<%s (url=%s)>' % (self.__class__.__name__, self.engine.url)

env/lib/python3.5/site-packages/apscheduler/jobstores/zookeeper.py

+from __future__ import absolute_import
+
+import os
+from datetime import datetime
+
+from pytz import utc
+from kazoo.exceptions import NoNodeError, NodeExistsError
+
+from apscheduler.jobstores.base import BaseJobStore, JobLookupError, ConflictingIdError
+from apscheduler.util import maybe_ref, datetime_to_utc_timestamp, utc_timestamp_to_datetime
+from apscheduler.job import Job
+
+try:
+    import cPickle as pickle
+except ImportError:  # pragma: nocover
+    import pickle
+
+try:
+    from kazoo.client import KazooClient
+except ImportError:  # pragma: nocover
+    raise ImportError('ZooKeeperJobStore requires Kazoo installed')
+
+
+class ZooKeeperJobStore(BaseJobStore):
+    """
+    Stores jobs in a ZooKeeper tree. Any leftover keyword arguments are directly passed to
+    kazoo's `KazooClient
+    <http://kazoo.readthedocs.io/en/latest/api/client.html>`_.
+
+    Plugin alias: ``zookeeper``
+
+    :param str path: path to store jobs in
+    :param client: a :class:`~kazoo.client.KazooClient` instance to use instead of
+        providing connection arguments
+    :param int pickle_protocol: pickle protocol level to use (for serialization), defaults to the
+        highest available
+    """
+
+    def __init__(self, path='/apscheduler', client=None, close_connection_on_exit=False,
+                 pickle_protocol=pickle.HIGHEST_PROTOCOL, **connect_args):
+        super(ZooKeeperJobStore, self).__init__()
+        self.pickle_protocol = pickle_protocol
+        self.close_connection_on_exit = close_connection_on_exit
+
+        if not path:
+            raise ValueError('The "path" parameter must not be empty')
+
+        self.path = path
+
+        if client:
+            self.client = maybe_ref(client)
+        else:
+            self.client = KazooClient(**connect_args)
+        self._ensured_path = False
+
+    def _ensure_paths(self):
+        if not self._ensured_path:
+            self.client.ensure_path(self.path)
+        self._ensured_path = True
+
+    def start(self, scheduler, alias):
+        super(ZooKeeperJobStore, self).start(scheduler, alias)
+        if not self.client.connected:
+            self.client.start()
+
+    def lookup_job(self, job_id):
+        self._ensure_paths()
+        node_path = os.path.join(self.path, job_id)
+        try:
+            content, _ = self.client.get(node_path)
+            doc = pickle.loads(content)
+            job = self._reconstitute_job(doc['job_state'])
+            return job
+        except BaseException:
+            return None
+
+    def get_due_jobs(self, now):
+        timestamp = datetime_to_utc_timestamp(now)
+        jobs = [job_def['job'] for job_def in self._get_jobs()
+                if job_def['next_run_time'] is not None and job_def['next_run_time'] <= timestamp]
+        return jobs
+
+    def get_next_run_time(self):
+        next_runs = [job_def['next_run_time'] for job_def in self._get_jobs()
+                     if job_def['next_run_time'] is not None]
+        return utc_timestamp_to_datetime(min(next_runs)) if len(next_runs) > 0 else None
+
+    def get_all_jobs(self):
+        jobs = [job_def['job'] for job_def in self._get_jobs()]
+        self._fix_paused_jobs_sorting(jobs)
+        return jobs
+
+    def add_job(self, job):
+        self._ensure_paths()
+        node_path = os.path.join(self.path,  str(job.id))
+        value = {
+            'next_run_time': datetime_to_utc_timestamp(job.next_run_time),
+            'job_state': job.__getstate__()
+        }
+        data = pickle.dumps(value, self.pickle_protocol)
+        try:
+            self.client.create(node_path, value=data)
+        except NodeExistsError:
+            raise ConflictingIdError(job.id)
+
+    def update_job(self, job):
+        self._ensure_paths()
+        node_path = os.path.join(self.path,  str(job.id))
+        changes = {
+            'next_run_time': datetime_to_utc_timestamp(job.next_run_time),
+            'job_state': job.__getstate__()
+        }
+        data = pickle.dumps(changes, self.pickle_protocol)
+        try:
+            self.client.set(node_path, value=data)
+        except NoNodeError:
+            raise JobLookupError(job.id)
+
+    def remove_job(self, job_id):
+        self._ensure_paths()
+        node_path = os.path.join(self.path,  str(job_id))
+        try:
+            self.client.delete(node_path)
+        except NoNodeError:
+            raise JobLookupError(job_id)
+
+    def remove_all_jobs(self):
+        try:
+            self.client.delete(self.path, recursive=True)
+        except NoNodeError:
+            pass
+        self._ensured_path = False
+
+    def shutdown(self):
+        if self.close_connection_on_exit:
+            self.client.stop()
+            self.client.close()
+
+    def _reconstitute_job(self, job_state):
+        job_state = job_state
+        job = Job.__new__(Job)
+        job.__setstate__(job_state)
+        job._scheduler = self._scheduler
+        job._jobstore_alias = self._alias
+        return job
+
+    def _get_jobs(self):
+        self._ensure_paths()
+        jobs = []
+        failed_job_ids = []
+        all_ids = self.client.get_children(self.path)
+        for node_name in all_ids:
+            try:
+                node_path = os.path.join(self.path, node_name)
+                content, _ = self.client.get(node_path)
+                doc = pickle.loads(content)
+                job_def = {
+                    'job_id': node_name,
+                    'next_run_time': doc['next_run_time'] if doc['next_run_time'] else None,
+                    'job_state': doc['job_state'],
+                    'job': self._reconstitute_job(doc['job_state']),
+                    'creation_time': _.ctime
+                }
+                jobs.append(job_def)
+            except BaseException:
+                self._logger.exception('Unable to restore job "%s" -- removing it' % node_name)
+                failed_job_ids.append(node_name)
+
+        # Remove all the jobs we failed to restore
+        if failed_job_ids:
+            for failed_id in failed_job_ids:
+                self.remove_job(failed_id)
+        paused_sort_key = datetime(9999, 12, 31, tzinfo=utc)
+        return sorted(jobs, key=lambda job_def: (job_def['job'].next_run_time or paused_sort_key,
+                                                 job_def['creation_time']))
+
+    def __repr__(self):
+        self._logger.exception('<%s (client=%s)>' % (self.__class__.__name__, self.client))
+        return '<%s (client=%s)>' % (self.__class__.__name__, self.client)

env/lib/python3.5/site-packages/apscheduler/schedulers/__init__.py

+class SchedulerAlreadyRunningError(Exception):
+    """Raised when attempting to start or configure the scheduler when it's already running."""
+
+    def __str__(self):
+        return 'Scheduler is already running'
+
+
+class SchedulerNotRunningError(Exception):
+    """Raised when attempting to shutdown the scheduler when it's not running."""
+
+    def __str__(self):
+        return 'Scheduler is not running'

env/lib/python3.5/site-packages/apscheduler/schedulers/asyncio.py

+from __future__ import absolute_import
+from functools import wraps, partial
+
+from apscheduler.schedulers.base import BaseScheduler
+from apscheduler.util import maybe_ref
+
+try:
+    import asyncio
+except ImportError:  # pragma: nocover
+    try:
+        import trollius as asyncio
+    except ImportError:
+        raise ImportError(
+            'AsyncIOScheduler requires either Python 3.4 or the asyncio package installed')
+
+
+def run_in_event_loop(func):
+    @wraps(func)
+    def wrapper(self, *args, **kwargs):
+        wrapped = partial(func, self, *args, **kwargs)
+        self._eventloop.call_soon_threadsafe(wrapped)
+    return wrapper
+
+
+class AsyncIOScheduler(BaseScheduler):
+    """
+    A scheduler that runs on an asyncio (:pep:`3156`) event loop.
+
+    The default executor can run jobs based on native coroutines (``async def``).
+
+    Extra options:
+
+    ============== =============================================================
+    ``event_loop`` AsyncIO event loop to use (defaults to the global event loop)
+    ============== =============================================================
+    """
+
+    _eventloop = None
+    _timeout = None
+
+    @run_in_event_loop
+    def shutdown(self, wait=True):
+        super(AsyncIOScheduler, self).shutdown(wait)
+        self._stop_timer()
+
+    def _configure(self, config):
+        self._eventloop = maybe_ref(config.pop('event_loop', None)) or asyncio.get_event_loop()
+        super(AsyncIOScheduler, self)._configure(config)
+
+    def _start_timer(self, wait_seconds):
+        self._stop_timer()
+        if wait_seconds is not None:
+            self._timeout = self._eventloop.call_later(wait_seconds, self.wakeup)
+
+    def _stop_timer(self):
+        if self._timeout:
+            self._timeout.cancel()
+            del self._timeout
+
+    @run_in_event_loop
+    def wakeup(self):
+        self._stop_timer()
+        wait_seconds = self._process_jobs()
+        self._start_timer(wait_seconds)
+
+    def _create_default_executor(self):
+        from apscheduler.executors.asyncio import AsyncIOExecutor
+        return AsyncIOExecutor()

env/lib/python3.5/site-packages/apscheduler/schedulers/background.py

+from __future__ import absolute_import
+
+from threading import Thread, Event
+
+from apscheduler.schedulers.base import BaseScheduler
+from apscheduler.schedulers.blocking import BlockingScheduler
+from apscheduler.util import asbool
+
+
+class BackgroundScheduler(BlockingScheduler):
+    """
+    A scheduler that runs in the background using a separate thread
+    (:meth:`~apscheduler.schedulers.base.BaseScheduler.start` will return immediately).
+
+    Extra options:
+
+    ========== =============================================================================
+    ``daemon`` Set the ``daemon`` option in the background thread (defaults to ``True``, see
+               `the documentation
+               <https://docs.python.org/3.4/library/threading.html#thread-objects>`_
+               for further details)
+    ========== =============================================================================
+    """
+
+    _thread = None
+
+    def _configure(self, config):
+        self._daemon = asbool(config.pop('daemon', True))
+        super(BackgroundScheduler, self)._configure(config)
+
+    def start(self, *args, **kwargs):
+        self._event = Event()
+        BaseScheduler.start(self, *args, **kwargs)
+        self._thread = Thread(target=self._main_loop, name='APScheduler')
+        self._thread.daemon = self._daemon
+        self._thread.start()
+
+    def shutdown(self, *args, **kwargs):
+        super(BackgroundScheduler, self).shutdown(*args, **kwargs)
+        self._thread.join()
+        del self._thread

env/lib/python3.5/site-packages/apscheduler/schedulers/blocking.py

+from __future__ import absolute_import
+
+from threading import Event
+
+from apscheduler.schedulers.base import BaseScheduler, STATE_STOPPED
+from apscheduler.util import TIMEOUT_MAX
+
+
+class BlockingScheduler(BaseScheduler):
+    """
+    A scheduler that runs in the foreground
+    (:meth:`~apscheduler.schedulers.base.BaseScheduler.start` will block).
+    """
+    _event = None
+
+    def start(self, *args, **kwargs):
+        self._event = Event()
+        super(BlockingScheduler, self).start(*args, **kwargs)
+        self._main_loop()
+
+    def shutdown(self, wait=True):
+        super(BlockingScheduler, self).shutdown(wait)
+        self._event.set()
+
+    def _main_loop(self):
+        wait_seconds = TIMEOUT_MAX
+        while self.state != STATE_STOPPED:
+            self._event.wait(wait_seconds)
+            self._event.clear()
+            wait_seconds = self._process_jobs()
+
+    def wakeup(self):
+        self._event.set()