ENIAC-6, this maybe a bit long as there's quite a bit of background.
arcpy.TestSchemaLock returns True if a lock can be applied, else False.
with regards to 64 & 32 bit background processing are not part of the ArcGIS Pro application. They are an ArcGIS Desktop/ArcMap feature.
ArcGIS Pro is a multi-threaded application, gp tools (...