I cannot run a weighted sum or overlay because I get the message that I don't have the cell size set--but I do in fact have it set. Here's the python for my entire process (copied from a model)--and you can see that I set it. Anyone else having this issue?
... # Import arcpy module
... import arcpy
...
...
... # Local variables:
... PolytoPointCensus = "PolytoPointCensus"
... ZCrimeCalls = "C:\\SpatialAnalysisClassProject\\LR911Calls.gdb\\ZCrimeCalls"
... PolytoPointCensus__3_ = "PolytoPointCensus"
... ZPoverty_Rate = "C:\\SpatialAnalysisClassProject\\LR911Calls.gdb\\ZPovertyRate"
... PolytoPointCensus__2_ = "PolytoPointCensus"
... ZPublic_Housing = "C:\\SpatialAnalysisClassProject\\LR911Calls.gdb\\ZPublicHousing"
... Weighte_ZCri1 = "C:\\SpatialAnalysisClassProject\\LR911Calls.gdb\\Weighte_ZCri1"
...
... # Process: Crime calls Kernel Density
... arcpy.gp.KernelDensity_sa(PolytoPointCensus, "ZCrimeCalls", ZCrimeCalls, "50", "5280", "SQUARE_MAP_UNITS", "DENSITIES", "PLANAR")
...
... # Process: Poverty Kernel Density
... arcpy.gp.KernelDensity_sa(PolytoPointCensus__3_, "ZPovRate", ZPoverty_Rate, "50", "5280", "SQUARE_MAP_UNITS", "DENSITIES", "PLANAR")
...
... # Process: Public Housing Kernel Density
... arcpy.gp.KernelDensity_sa(PolytoPointCensus__2_, "ZPublicHousing", ZPublic_Housing, "50", "5280", "SQUARE_MAP_UNITS", "DENSITIES", "PLANAR")
...
... # Process: Weighted Sum
... tempEnvironment0 = arcpy.env.cellSize
... arcpy.env.cellSize = "50"
... tempEnvironment1 = arcpy.env.mask
... arcpy.env.mask = "Little Rock Municipal Boundary"
... arcpy.gp.WeightedSum_sa("C:\\SpatialAnalysisClassProject\\LR911Calls.gdb\\ZCrimeCalls VALUE 0.33;C:\\SpatialAnalysisClassProject\\LR911Calls.gdb\\ZPovertyRate VALUE 0.33;C:\\SpatialAnalysisClassProject\\LR911Calls.gdb\\ZPublicHousing VALUE 0.33", Weighte_ZCri1)
... arcpy.env.cellSize = tempEnvironment0
... arcpy.env.mask = tempEnvironment1
...
...
Runtime error Traceback (most recent call last): File "<string>", line 36, in <module> File "c:\program files (x86)\arcgis\desktop10.4\arcpy\arcpy\geoprocessing\_base.py", line 506, in <lambda> return lambda *args: val(*gp_fixargs(args, True)) ExecuteError: ERROR 010050: Cell size is not set. Failed to execute (WeightedSum).