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Check for None instead of evaluating the variable as True/False.

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This commit is contained in:
Jack Ha 2018-07-11 11:34:31 +02:00
parent 6a5c0b608d
commit 993dd7a90e
1 changed files with 2 additions and 4 deletions
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4
plugins/CuraEngineBackend/CuraEngineBackend.py
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@ -584,11 +584,9 @@ class CuraEngineBackend(QObject, Backend):
# #
# \param message The protobuf message containing sliced layer data. # \param message The protobuf message containing sliced layer data.
def _onOptimizedLayerMessage(self, message: Arcus.PythonMessage) -> None: def _onOptimizedLayerMessage(self, message: Arcus.PythonMessage) -> None:
if self._start_slice_job_build_plate: if self._start_slice_job_build_plate is not None:
if self._start_slice_job_build_plate not in self._stored_optimized_layer_data: if self._start_slice_job_build_plate not in self._stored_optimized_layer_data:
self._stored_optimized_layer_data[self._start_slice_job_build_plate] = [] self._stored_optimized_layer_data[self._start_slice_job_build_plate] = []
else:
self._start_slice_job_build_plate = 0
self._stored_optimized_layer_data[self._start_slice_job_build_plate].append(message) self._stored_optimized_layer_data[self._start_slice_job_build_plate].append(message)
## Called when a progress message is received from the engine. ## Called when a progress message is received from the engine.