diff options
Diffstat (limited to 'synapse')
| -rw-r--r-- | synapse/api/errors.py | 3 | ||||
| -rwxr-xr-x | synapse/app/homeserver.py | 36 | ||||
| -rwxr-xr-x | synapse/app/synctl.py | 4 | ||||
| -rw-r--r-- | synapse/handlers/device.py | 6 | ||||
| -rw-r--r-- | synapse/handlers/e2e_keys.py | 56 | ||||
| -rw-r--r-- | synapse/handlers/identity.py | 8 | ||||
| -rw-r--r-- | synapse/handlers/message.py | 4 | ||||
| -rw-r--r-- | synapse/handlers/register.py | 14 | ||||
| -rw-r--r-- | synapse/python_dependencies.py | 1 | ||||
| -rw-r--r-- | synapse/replication/tcp/commands.py | 8 | ||||
| -rw-r--r-- | synapse/state.py | 55 | ||||
| -rw-r--r-- | synapse/storage/events.py | 62 | ||||
| -rw-r--r-- | synapse/storage/group_server.py | 2 | ||||
| -rw-r--r-- | synapse/storage/registration.py | 4 | ||||
| -rw-r--r-- | synapse/storage/room.py | 7 | ||||
| -rw-r--r-- | synapse/storage/roommember.py | 6 | ||||
| -rw-r--r-- | synapse/storage/schema/delta/14/upgrade_appservice_db.py | 3 | ||||
| -rw-r--r-- | synapse/storage/search.py | 6 | ||||
| -rw-r--r-- | synapse/storage/user_directory.py | 4 | ||||
| -rw-r--r-- | synapse/util/frozenutils.py | 19 |
20 files changed, 204 insertions, 104 deletions
diff --git a/synapse/api/errors.py b/synapse/api/errors.py index aa15f73f36..bee59e80dd 100644 --- a/synapse/api/errors.py +++ b/synapse/api/errors.py @@ -15,9 +15,10 @@ """Contains exceptions and error codes.""" -import json import logging +import simplejson as json + logger = logging.getLogger(__name__) diff --git a/synapse/app/homeserver.py b/synapse/app/homeserver.py index 777e9c529a..a0e465d644 100755 --- a/synapse/app/homeserver.py +++ b/synapse/app/homeserver.py @@ -48,6 +48,7 @@ from synapse.server import HomeServer from synapse.storage import are_all_users_on_domain from synapse.storage.engines import IncorrectDatabaseSetup, create_engine from synapse.storage.prepare_database import UpgradeDatabaseException, prepare_database +from synapse.util.caches import CACHE_SIZE_FACTOR from synapse.util.httpresourcetree import create_resource_tree from synapse.util.logcontext import LoggingContext from synapse.util.manhole import manhole @@ -402,6 +403,10 @@ def run(hs): stats = {} + # Contains the list of processes we will be monitoring + # currently either 0 or 1 + stats_process = [] + @defer.inlineCallbacks def phone_stats_home(): logger.info("Gathering stats for reporting") @@ -431,6 +436,15 @@ def run(hs): daily_sent_messages = yield hs.get_datastore().count_daily_sent_messages() stats["daily_sent_messages"] = daily_sent_messages + stats["cache_factor"] = CACHE_SIZE_FACTOR + stats["event_cache_size"] = hs.config.event_cache_size + + if len(stats_process) > 0: + stats["memory_rss"] = 0 + stats["cpu_average"] = 0 + for process in stats_process: + stats["memory_rss"] += process.memory_info().rss + stats["cpu_average"] += int(process.cpu_percent(interval=None)) logger.info("Reporting stats to matrix.org: %s" % (stats,)) try: @@ -441,10 +455,32 @@ def run(hs): except Exception as e: logger.warn("Error reporting stats: %s", e) + def performance_stats_init(): + try: + import psutil + process = psutil.Process() + # Ensure we can fetch both, and make the initial request for cpu_percent + # so the next request will use this as the initial point. + process.memory_info().rss + process.cpu_percent(interval=None) + logger.info("report_stats can use psutil") + stats_process.append(process) + except (ImportError, AttributeError): + logger.warn( + "report_stats enabled but psutil is not installed or incorrect version." + " Disabling reporting of memory/cpu stats." + " Ensuring psutil is available will help matrix.org track performance" + " changes across releases." + ) + if hs.config.report_stats: logger.info("Scheduling stats reporting for 3 hour intervals") clock.looping_call(phone_stats_home, 3 * 60 * 60 * 1000) + # We need to defer this init for the cases that we daemonize + # otherwise the process ID we get is that of the non-daemon process + clock.call_later(0, performance_stats_init) + # We wait 5 minutes to send the first set of stats as the server can # be quite busy the first few minutes clock.call_later(5 * 60, phone_stats_home) diff --git a/synapse/app/synctl.py b/synapse/app/synctl.py index 0f0ddfa78a..b0e1b5e66a 100755 --- a/synapse/app/synctl.py +++ b/synapse/app/synctl.py @@ -38,7 +38,7 @@ def pid_running(pid): try: os.kill(pid, 0) return True - except OSError, err: + except OSError as err: if err.errno == errno.EPERM: return True return False @@ -98,7 +98,7 @@ def stop(pidfile, app): try: os.kill(pid, signal.SIGTERM) write("stopped %s" % (app,), colour=GREEN) - except OSError, err: + except OSError as err: if err.errno == errno.ESRCH: write("%s not running" % (app,), colour=YELLOW) elif err.errno == errno.EPERM: diff --git a/synapse/handlers/device.py b/synapse/handlers/device.py index 40f3d24678..f7457a7082 100644 --- a/synapse/handlers/device.py +++ b/synapse/handlers/device.py @@ -155,7 +155,7 @@ class DeviceHandler(BaseHandler): try: yield self.store.delete_device(user_id, device_id) - except errors.StoreError, e: + except errors.StoreError as e: if e.code == 404: # no match pass @@ -204,7 +204,7 @@ class DeviceHandler(BaseHandler): try: yield self.store.delete_devices(user_id, device_ids) - except errors.StoreError, e: + except errors.StoreError as e: if e.code == 404: # no match pass @@ -243,7 +243,7 @@ class DeviceHandler(BaseHandler): new_display_name=content.get("display_name") ) yield self.notify_device_update(user_id, [device_id]) - except errors.StoreError, e: + except errors.StoreError as e: if e.code == 404: raise errors.NotFoundError() else: diff --git a/synapse/handlers/e2e_keys.py b/synapse/handlers/e2e_keys.py index 80b359b2e7..325c0c4a9f 100644 --- a/synapse/handlers/e2e_keys.py +++ b/synapse/handlers/e2e_keys.py @@ -1,5 +1,6 @@ # -*- coding: utf-8 -*- # Copyright 2016 OpenMarket Ltd +# Copyright 2018 New Vector Ltd # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. @@ -134,23 +135,8 @@ class E2eKeysHandler(object): if user_id in destination_query: results[user_id] = keys - except CodeMessageException as e: - failures[destination] = { - "status": e.code, "message": e.message - } - except NotRetryingDestination as e: - failures[destination] = { - "status": 503, "message": "Not ready for retry", - } - except FederationDeniedError as e: - failures[destination] = { - "status": 403, "message": "Federation Denied", - } except Exception as e: - # include ConnectionRefused and other errors - failures[destination] = { - "status": 503, "message": e.message - } + failures[destination] = _exception_to_failure(e) yield make_deferred_yieldable(defer.gatherResults([ preserve_fn(do_remote_query)(destination) @@ -252,19 +238,8 @@ class E2eKeysHandler(object): for user_id, keys in remote_result["one_time_keys"].items(): if user_id in device_keys: json_result[user_id] = keys - except CodeMessageException as e: - failures[destination] = { - "status": e.code, "message": e.message - } - except NotRetryingDestination as e: - failures[destination] = { - "status": 503, "message": "Not ready for retry", - } except Exception as e: - # include ConnectionRefused and other errors - failures[destination] = { - "status": 503, "message": e.message - } + failures[destination] = _exception_to_failure(e) yield make_deferred_yieldable(defer.gatherResults([ preserve_fn(claim_client_keys)(destination) @@ -362,6 +337,31 @@ class E2eKeysHandler(object): ) +def _exception_to_failure(e): + if isinstance(e, CodeMessageException): + return { + "status": e.code, "message": e.message, + } + + if isinstance(e, NotRetryingDestination): + return { + "status": 503, "message": "Not ready for retry", + } + + if isinstance(e, FederationDeniedError): + return { + "status": 403, "message": "Federation Denied", + } + + # include ConnectionRefused and other errors + # + # Note that some Exceptions (notably twisted's ResponseFailed etc) don't + # give a string for e.message, which simplejson then fails to serialize. + return { + "status": 503, "message": str(e.message), + } + + def _one_time_keys_match(old_key_json, new_key): old_key = json.loads(old_key_json) diff --git a/synapse/handlers/identity.py b/synapse/handlers/identity.py index 9efcdff1d6..91a0898860 100644 --- a/synapse/handlers/identity.py +++ b/synapse/handlers/identity.py @@ -15,6 +15,11 @@ # limitations under the License. """Utilities for interacting with Identity Servers""" + +import logging + +import simplejson as json + from twisted.internet import defer from synapse.api.errors import ( @@ -24,9 +29,6 @@ from ._base import BaseHandler from synapse.util.async import run_on_reactor from synapse.api.errors import SynapseError, Codes -import json -import logging - logger = logging.getLogger(__name__) diff --git a/synapse/handlers/message.py b/synapse/handlers/message.py index 5a8ddc253e..6de6e13b7b 100644 --- a/synapse/handlers/message.py +++ b/synapse/handlers/message.py @@ -27,7 +27,7 @@ from synapse.types import ( from synapse.util.async import run_on_reactor, ReadWriteLock, Limiter from synapse.util.logcontext import preserve_fn, run_in_background from synapse.util.metrics import measure_func -from synapse.util.frozenutils import unfreeze +from synapse.util.frozenutils import frozendict_json_encoder from synapse.util.stringutils import random_string from synapse.visibility import filter_events_for_client from synapse.replication.http.send_event import send_event_to_master @@ -678,7 +678,7 @@ class EventCreationHandler(object): # Ensure that we can round trip before trying to persist in db try: - dump = simplejson.dumps(unfreeze(event.content)) + dump = frozendict_json_encoder.encode(event.content) simplejson.loads(dump) except Exception: logger.exception("Failed to encode content: %r", event.content) diff --git a/synapse/handlers/register.py b/synapse/handlers/register.py index ed5939880a..dd03705279 100644 --- a/synapse/handlers/register.py +++ b/synapse/handlers/register.py @@ -24,7 +24,7 @@ from synapse.api.errors import ( from synapse.http.client import CaptchaServerHttpClient from synapse import types from synapse.types import UserID -from synapse.util.async import run_on_reactor +from synapse.util.async import run_on_reactor, Linearizer from synapse.util.threepids import check_3pid_allowed from ._base import BaseHandler @@ -46,6 +46,10 @@ class RegistrationHandler(BaseHandler): self.macaroon_gen = hs.get_macaroon_generator() + self._generate_user_id_linearizer = Linearizer( + name="_generate_user_id_linearizer", + ) + @defer.inlineCallbacks def check_username(self, localpart, guest_access_token=None, assigned_user_id=None): @@ -345,9 +349,11 @@ class RegistrationHandler(BaseHandler): @defer.inlineCallbacks def _generate_user_id(self, reseed=False): if reseed or self._next_generated_user_id is None: - self._next_generated_user_id = ( - yield self.store.find_next_generated_user_id_localpart() - ) + with (yield self._generate_user_id_linearizer.queue(())): + if reseed or self._next_generated_user_id is None: + self._next_generated_user_id = ( + yield self.store.find_next_generated_user_id_localpart() + ) id = self._next_generated_user_id self._next_generated_user_id += 1 diff --git a/synapse/python_dependencies.py b/synapse/python_dependencies.py index 91179ce532..40eedb63cb 100644 --- a/synapse/python_dependencies.py +++ b/synapse/python_dependencies.py @@ -34,7 +34,6 @@ REQUIREMENTS = { "bcrypt": ["bcrypt>=3.1.0"], "pillow": ["PIL"], "pydenticon": ["pydenticon"], - "ujson": ["ujson"], "blist": ["blist"], "pysaml2>=3.0.0": ["saml2>=3.0.0"], "pymacaroons-pynacl": ["pymacaroons"], diff --git a/synapse/replication/tcp/commands.py b/synapse/replication/tcp/commands.py index 0005ad5879..12aac3cc6b 100644 --- a/synapse/replication/tcp/commands.py +++ b/synapse/replication/tcp/commands.py @@ -24,6 +24,8 @@ import simplejson logger = logging.getLogger(__name__) +_json_encoder = simplejson.JSONEncoder(namedtuple_as_object=False) + class Command(object): """The base command class. @@ -107,7 +109,7 @@ class RdataCommand(Command): return " ".join(( self.stream_name, str(self.token) if self.token is not None else "batch", - simplejson.dumps(self.row, namedtuple_as_object=False), + _json_encoder.encode(self.row), )) @@ -302,7 +304,7 @@ class InvalidateCacheCommand(Command): def to_line(self): return " ".join(( - self.cache_func, simplejson.dumps(self.keys, namedtuple_as_object=False) + self.cache_func, _json_encoder.encode(self.keys), )) @@ -334,7 +336,7 @@ class UserIpCommand(Command): ) def to_line(self): - return self.user_id + " " + simplejson.dumps(( + return self.user_id + " " + _json_encoder.encode(( self.access_token, self.ip, self.user_agent, self.device_id, self.last_seen, )) diff --git a/synapse/state.py b/synapse/state.py index a7f20350f1..26093c8434 100644 --- a/synapse/state.py +++ b/synapse/state.py @@ -483,33 +483,34 @@ class StateResolutionHandler(object): key: e_ids.pop() for key, e_ids in state.iteritems() } - # if the new state matches any of the input state groups, we can - # use that state group again. Otherwise we will generate a state_id - # which will be used as a cache key for future resolutions, but - # not get persisted. - state_group = None - new_state_event_ids = frozenset(new_state.itervalues()) - for sg, events in state_groups_ids.iteritems(): - if new_state_event_ids == frozenset(e_id for e_id in events): - state_group = sg - break - - # TODO: We want to create a state group for this set of events, to - # increase cache hits, but we need to make sure that it doesn't - # end up as a prev_group without being added to the database - - prev_group = None - delta_ids = None - for old_group, old_ids in state_groups_ids.iteritems(): - if not set(new_state) - set(old_ids): - n_delta_ids = { - k: v - for k, v in new_state.iteritems() - if old_ids.get(k) != v - } - if not delta_ids or len(n_delta_ids) < len(delta_ids): - prev_group = old_group - delta_ids = n_delta_ids + with Measure(self.clock, "state.create_group_ids"): + # if the new state matches any of the input state groups, we can + # use that state group again. Otherwise we will generate a state_id + # which will be used as a cache key for future resolutions, but + # not get persisted. + state_group = None + new_state_event_ids = frozenset(new_state.itervalues()) + for sg, events in state_groups_ids.iteritems(): + if new_state_event_ids == frozenset(e_id for e_id in events): + state_group = sg + break + + # TODO: We want to create a state group for this set of events, to + # increase cache hits, but we need to make sure that it doesn't + # end up as a prev_group without being added to the database + + prev_group = None + delta_ids = None + for old_group, old_ids in state_groups_ids.iteritems(): + if not set(new_state) - set(old_ids): + n_delta_ids = { + k: v + for k, v in new_state.iteritems() + if old_ids.get(k) != v + } + if not delta_ids or len(n_delta_ids) < len(delta_ids): + prev_group = old_group + delta_ids = n_delta_ids cache = _StateCacheEntry( state=new_state, diff --git a/synapse/storage/events.py b/synapse/storage/events.py index 85ce6bea1a..ece5e6c41f 100644 --- a/synapse/storage/events.py +++ b/synapse/storage/events.py @@ -14,15 +14,19 @@ # See the License for the specific language governing permissions and # limitations under the License. -from synapse.storage.events_worker import EventsWorkerStore +from collections import OrderedDict, deque, namedtuple +from functools import wraps +import logging +import simplejson as json from twisted.internet import defer -from synapse.events import USE_FROZEN_DICTS +from synapse.storage.events_worker import EventsWorkerStore from synapse.util.async import ObservableDeferred +from synapse.util.frozenutils import frozendict_json_encoder from synapse.util.logcontext import ( - PreserveLoggingContext, make_deferred_yieldable + PreserveLoggingContext, make_deferred_yieldable, ) from synapse.util.logutils import log_function from synapse.util.metrics import Measure @@ -30,16 +34,8 @@ from synapse.api.constants import EventTypes from synapse.api.errors import SynapseError from synapse.util.caches.descriptors import cached, cachedInlineCallbacks from synapse.types import get_domain_from_id - -from canonicaljson import encode_canonical_json -from collections import deque, namedtuple, OrderedDict -from functools import wraps - import synapse.metrics -import logging -import simplejson as json - # these are only included to make the type annotations work from synapse.events import EventBase # noqa: F401 from synapse.events.snapshot import EventContext # noqa: F401 @@ -53,12 +49,25 @@ event_counter = metrics.register_counter( "persisted_events_sep", labels=["type", "origin_type", "origin_entity"] ) +# The number of times we are recalculating the current state +state_delta_counter = metrics.register_counter( + "state_delta", +) +# The number of times we are recalculating state when there is only a +# single forward extremity +state_delta_single_event_counter = metrics.register_counter( + "state_delta_single_event", +) +# The number of times we are reculating state when we could have resonably +# calculated the delta when we calculated the state for an event we were +# persisting. +state_delta_reuse_delta_counter = metrics.register_counter( + "state_delta_reuse_delta", +) + def encode_json(json_object): - if USE_FROZEN_DICTS: - return encode_canonical_json(json_object) - else: - return json.dumps(json_object, ensure_ascii=False) + return frozendict_json_encoder.encode(json_object) class _EventPeristenceQueue(object): @@ -368,7 +377,8 @@ class EventsStore(EventsWorkerStore): room_id, ev_ctx_rm, latest_event_ids ) - if new_latest_event_ids == set(latest_event_ids): + latest_event_ids = set(latest_event_ids) + if new_latest_event_ids == latest_event_ids: # No change in extremities, so no change in state continue @@ -389,6 +399,26 @@ class EventsStore(EventsWorkerStore): if all_single_prev_not_state: continue + state_delta_counter.inc() + if len(new_latest_event_ids) == 1: + state_delta_single_event_counter.inc() + + # This is a fairly handwavey check to see if we could + # have guessed what the delta would have been when + # processing one of these events. + # What we're interested in is if the latest extremities + # were the same when we created the event as they are + # now. When this server creates a new event (as opposed + # to receiving it over federation) it will use the + # forward extremities as the prev_events, so we can + # guess this by looking at the prev_events and checking + # if they match the current forward extremities. + for ev, _ in ev_ctx_rm: + prev_event_ids = set(e for e, _ in ev.prev_events) + if latest_event_ids == prev_event_ids: + state_delta_reuse_delta_counter.inc() + break + logger.info( "Calculating state delta for room %s", room_id, ) diff --git a/synapse/storage/group_server.py b/synapse/storage/group_server.py index 8fde1aab8e..d03858234b 100644 --- a/synapse/storage/group_server.py +++ b/synapse/storage/group_server.py @@ -19,7 +19,7 @@ from synapse.api.errors import SynapseError from ._base import SQLBaseStore -import ujson as json +import simplejson as json # The category ID for the "default" category. We don't store as null in the diff --git a/synapse/storage/registration.py b/synapse/storage/registration.py index d809b2ba46..6b557ca0cf 100644 --- a/synapse/storage/registration.py +++ b/synapse/storage/registration.py @@ -460,14 +460,12 @@ class RegistrationStore(RegistrationWorkerStore, """ def _find_next_generated_user_id(txn): txn.execute("SELECT name FROM users") - rows = self.cursor_to_dict(txn) regex = re.compile("^@(\d+):") found = set() - for r in rows: - user_id = r["name"] + for user_id, in txn: match = regex.search(user_id) if match: found.add(int(match.group(1))) diff --git a/synapse/storage/room.py b/synapse/storage/room.py index 908551d6d9..740c036975 100644 --- a/synapse/storage/room.py +++ b/synapse/storage/room.py @@ -594,7 +594,8 @@ class RoomStore(RoomWorkerStore, SearchStore): while next_token: sql = """ - SELECT stream_ordering, content FROM events + SELECT stream_ordering, json FROM events + JOIN event_json USING (event_id) WHERE room_id = ? AND stream_ordering < ? AND contains_url = ? AND outlier = ? @@ -606,8 +607,8 @@ class RoomStore(RoomWorkerStore, SearchStore): next_token = None for stream_ordering, content_json in txn: next_token = stream_ordering - content = json.loads(content_json) - + event_json = json.loads(content_json) + content = event_json["content"] content_url = content.get("url") thumbnail_url = content.get("info", {}).get("thumbnail_url") diff --git a/synapse/storage/roommember.py b/synapse/storage/roommember.py index d662d1cfc0..6a861943a2 100644 --- a/synapse/storage/roommember.py +++ b/synapse/storage/roommember.py @@ -645,8 +645,9 @@ class RoomMemberStore(RoomMemberWorkerStore): def add_membership_profile_txn(txn): sql = (""" - SELECT stream_ordering, event_id, events.room_id, content + SELECT stream_ordering, event_id, events.room_id, event_json.json FROM events + INNER JOIN event_json USING (event_id) INNER JOIN room_memberships USING (event_id) WHERE ? <= stream_ordering AND stream_ordering < ? AND type = 'm.room.member' @@ -667,7 +668,8 @@ class RoomMemberStore(RoomMemberWorkerStore): event_id = row["event_id"] room_id = row["room_id"] try: - content = json.loads(row["content"]) + event_json = json.loads(row["json"]) + content = event_json['content'] except Exception: continue diff --git a/synapse/storage/schema/delta/14/upgrade_appservice_db.py b/synapse/storage/schema/delta/14/upgrade_appservice_db.py index 8755bb2e49..4d725b92fe 100644 --- a/synapse/storage/schema/delta/14/upgrade_appservice_db.py +++ b/synapse/storage/schema/delta/14/upgrade_appservice_db.py @@ -12,9 +12,10 @@ # See the License for the specific language governing permissions and # limitations under the License. -import json import logging +import simplejson as json + logger = logging.getLogger(__name__) diff --git a/synapse/storage/search.py b/synapse/storage/search.py index 984643b057..426cbe6e1a 100644 --- a/synapse/storage/search.py +++ b/synapse/storage/search.py @@ -75,8 +75,9 @@ class SearchStore(BackgroundUpdateStore): def reindex_search_txn(txn): sql = ( - "SELECT stream_ordering, event_id, room_id, type, content, " + "SELECT stream_ordering, event_id, room_id, type, json, " " origin_server_ts FROM events" + " JOIN event_json USING (event_id)" " WHERE ? <= stream_ordering AND stream_ordering < ?" " AND (%s)" " ORDER BY stream_ordering DESC" @@ -104,7 +105,8 @@ class SearchStore(BackgroundUpdateStore): stream_ordering = row["stream_ordering"] origin_server_ts = row["origin_server_ts"] try: - content = json.loads(row["content"]) + event_json = json.loads(row["json"]) + content = event_json["content"] except Exception: continue diff --git a/synapse/storage/user_directory.py b/synapse/storage/user_directory.py index dfdcbb3181..d6e289ffbe 100644 --- a/synapse/storage/user_directory.py +++ b/synapse/storage/user_directory.py @@ -667,7 +667,7 @@ class UserDirectoryStore(SQLBaseStore): # The array of numbers are the weights for the various part of the # search: (domain, _, display name, localpart) sql = """ - SELECT d.user_id, display_name, avatar_url + SELECT d.user_id AS user_id, display_name, avatar_url FROM user_directory_search INNER JOIN user_directory AS d USING (user_id) %s @@ -702,7 +702,7 @@ class UserDirectoryStore(SQLBaseStore): search_query = _parse_query_sqlite(search_term) sql = """ - SELECT d.user_id, display_name, avatar_url + SELECT d.user_id AS user_id, display_name, avatar_url FROM user_directory_search INNER JOIN user_directory AS d USING (user_id) %s diff --git a/synapse/util/frozenutils.py b/synapse/util/frozenutils.py index 6322f0f55c..f497b51f4a 100644 --- a/synapse/util/frozenutils.py +++ b/synapse/util/frozenutils.py @@ -14,6 +14,7 @@ # limitations under the License. from frozendict import frozendict +import simplejson as json def freeze(o): @@ -49,3 +50,21 @@ def unfreeze(o): pass return o + + +def _handle_frozendict(obj): + """Helper for EventEncoder. Makes frozendicts serializable by returning + the underlying dict + """ + if type(obj) is frozendict: + # fishing the protected dict out of the object is a bit nasty, + # but we don't really want the overhead of copying the dict. + return obj._dict + raise TypeError('Object of type %s is not JSON serializable' % + obj.__class__.__name__) + + +# A JSONEncoder which is capable of encoding frozendics without barfing +frozendict_json_encoder = json.JSONEncoder( + default=_handle_frozendict, +) |