diff --git a/synapse/metrics/__init__.py b/synapse/metrics/__init__.py
index cbf0dbb871..a8cb49d5b4 100644
--- a/synapse/metrics/__init__.py
+++ b/synapse/metrics/__init__.py
@@ -155,8 +155,7 @@ class InFlightGauge:
self._registrations.setdefault(key, set()).add(callback)
def unregister(self, key, callback):
- """Registers that we've exited a block with labels `key`.
- """
+ """Registers that we've exited a block with labels `key`."""
with self._lock:
self._registrations.setdefault(key, set()).discard(callback)
@@ -402,7 +401,9 @@ class PyPyGCStats:
# Total time spent in GC: 0.073 # s.total_gc_time
pypy_gc_time = CounterMetricFamily(
- "pypy_gc_time_seconds_total", "Total time spent in PyPy GC", labels=[],
+ "pypy_gc_time_seconds_total",
+ "Total time spent in PyPy GC",
+ labels=[],
)
pypy_gc_time.add_metric([], s.total_gc_time / 1000)
yield pypy_gc_time
diff --git a/synapse/metrics/_exposition.py b/synapse/metrics/_exposition.py
index 734271e765..71320a1402 100644
--- a/synapse/metrics/_exposition.py
+++ b/synapse/metrics/_exposition.py
@@ -216,7 +216,7 @@ class MetricsHandler(BaseHTTPRequestHandler):
@classmethod
def factory(cls, registry):
"""Returns a dynamic MetricsHandler class tied
- to the passed registry.
+ to the passed registry.
"""
# This implementation relies on MetricsHandler.registry
# (defined above and defaulted to REGISTRY).
diff --git a/synapse/metrics/background_process_metrics.py b/synapse/metrics/background_process_metrics.py
index 70e0fa45d9..b56986d8e7 100644
--- a/synapse/metrics/background_process_metrics.py
+++ b/synapse/metrics/background_process_metrics.py
@@ -208,7 +208,8 @@ def run_as_background_process(desc: str, func, *args, bg_start_span=True, **kwar
return await maybe_awaitable(func(*args, **kwargs))
except Exception:
logger.exception(
- "Background process '%s' threw an exception", desc,
+ "Background process '%s' threw an exception",
+ desc,
)
finally:
_background_process_in_flight_count.labels(desc).dec()
@@ -249,8 +250,7 @@ class BackgroundProcessLoggingContext(LoggingContext):
self._proc = _BackgroundProcess(name, self)
def start(self, rusage: "Optional[resource._RUsage]"):
- """Log context has started running (again).
- """
+ """Log context has started running (again)."""
super().start(rusage)
@@ -261,8 +261,7 @@ class BackgroundProcessLoggingContext(LoggingContext):
_background_processes_active_since_last_scrape.add(self._proc)
def __exit__(self, type, value, traceback) -> None:
- """Log context has finished.
- """
+ """Log context has finished."""
super().__exit__(type, value, traceback)
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