Closing QgsRasterLayer's file handler in Python script

Question

I'm creating a QgsRasterLayer from temporary file, as result from some processing algorithm.
After that, I no longer can delete file, as expected. But, because It is only a temp file, I need delete It after all my processing is done.
I tried, without success:
   layer = QgsRasterLayer("myTempFile.tif")

#Do some work...

del layer

myTempFile.tif still can't be deleted, but only after closing QGIS.

Erich Purpur · Answer

Here is a similar thread which you can also read: Removing a vector layer from QGIS

Try something like this, you will need to adapt it to reflect the layer(s) you are working with.

layer = QgsRasterLayer('path/to/your/raster.tif')

#do the rest of your code

QgsProject.instance().removeMapLayer(layer)

Closing QgsRasterLayer's file handler in Python script

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