[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

src/pubtools/_impl/tracing.py

@@ -20,7 +20,10 @@ def func():
     from opentelemetry.sdk.trace import TracerProvider
     from opentelemetry.sdk.trace.export import BatchSpanProcessor, ConsoleSpanExporter
     from opentelemetry.trace import Status, StatusCode
-    from opentelemetry.trace.propagation.tracecontext import TraceContextTextMapPropagator
+    from opentelemetry.trace.propagation.tracecontext import (
+        TraceContextTextMapPropagator,
+    )
+
     OPENTELEMETRY_AVAILABLE = True
 except ImportError:
     # Clients aren't expected to have open-telemetry. This flag will be used in
@@ -66,11 +69,16 @@ def _reset(self):
         # trace.set_tracer_provider global singleton set below can *never* be set up
         # more than once in a single process.
 
-        self._enabled_trace = (os.getenv("OTEL_TRACING", "").lower() == "true") \
-                              and OPENTELEMETRY_AVAILABLE
-        if (os.getenv("OTEL_TRACING", "").lower() == "true") and not OPENTELEMETRY_AVAILABLE:
-            log.debug("Tracing is enabled but the open telemetry package is "
-                      "unavailable. Tracing functionality will be disabled.")
+        self._enabled_trace = (
+            os.getenv("OTEL_TRACING", "").lower() == "true"
+        ) and OPENTELEMETRY_AVAILABLE
+        if (
+            os.getenv("OTEL_TRACING", "").lower() == "true"
+        ) and not OPENTELEMETRY_AVAILABLE:
+            log.debug(
+                "Tracing is enabled but the open telemetry package is "
+                "unavailable. Tracing functionality will be disabled."
+            )
         if self._enabled_trace and not self._processor:
             log.info("Creating TracingWrapper instance")
             exporter = pm.hook.otel_exporter() or ConsoleSpanExporter()