I have a python script, (for ArcGIS 10), that creates a new file geodatabase, creates a new feature class in that file geodatabase and then reads data from an SDE feature class to populate the new feature class. The script runs fine, except that a lock is placed on the file geodatabase that persists after the script is complete. The database cannot be deleted with ArcCatalog. Once the new feature class is deleted, then the file geodatabase can be deleted. In the script I delete the references to all cursors and rows and yet still the lock remains. Below is the relevant code. What am I doing wrong? import arcpy OutputFolder = arcpy.GetParameterAsText(0) FGDName = arcpy.GetParameterAsText(1) StringInputWorkspace = arcpy.GetParameterAsText(2) arcpy.env.workspace = StringInputWorkspace ## Create File GDB... Output_gdb = OutputFolder + '\\' + FGDName + '.gdb' arcpy.CreateFileGDB_management(OutputFolder, FGDName) ## Set current workspace to to file geodatabase arcpy.env.workspace = Output_gdb NewAddressPoints = Output_gdb + '\\AddressPoints' ## Create Feature Class... arcpy.CreateFeatureclass_management(Output_gdb, "AddressPoints", "POINT", "", "DISABLED", "DISABLED", "PROJCS['NAD_1983_StatePlane_Washington_North_FIPS_4601_Feet',GEOGCS['GCS_North_American_1983',DATUM['D_North_American_1983',SPHEROID['GRS_1980',6378137.0,298.257222101]],PRIMEM['Greenwich',0.0],UNIT['Degree',0.0174532925199433]],PROJECTION['Lambert_Conformal_Conic'],PARAMETER['False_Easting',1640416.666666667],PARAMETER['False_Northing',0.0],PARAMETER['Central_Meridian',-120.8333333333333],PARAMETER['Standard_Parallel_1',47.5],PARAMETER['Standard_Parallel_2',48.73333333333333],PARAMETER['Latitude_Of_Origin',47.0],UNIT['Foot_US',0.3048006096012192]];IsHighPrecision", "", "0", "0", "0") ## Add fields arcpy.AddField_management(NewAddressPoints, "AddressPointID", "LONG", "", "", "", "", "NULLABLE", "NON_REQUIRED", "") curSourceAddresses = arcpy.SearchCursor(SourceFCAddressPoints) curNewAddressPoints = arcpy.InsertCursor(NewAddressPoints) for rowSourceAddress in curSourceAddresses: rowNewAddress = curNewAddressPoints.newRow() rowNewAddress.SHAPE = rowSourceAddress.SHAPE rowNewAddress.AddressPointID = rowSourceAddress.OBJECTID del rowNewAddress del rowSourceAddress del curSourceAddresses del curNewAddressPoints