Arcpy reclassify all values to same number

Question

Using ArcGIS 10.1 and arcpy, is there a way to reclassify all values of a raster file to the same value (leaving NoData Values as "NoData")? Lets assume that I have no way of knowing what the actual (i.e original) values are, so defining a RemapRange from a very small to a very large number would be rather inelegant.

Basically, i'm missing a third option in the arcpy.Reclassify() tool. "missing values" can left alone (= "DATA") or turned into NoData (= "NODATA"), but not reclassified to a certain value.

Answer 1

So you want to convert all values to the same constant value and NoData should remain NoData. Instead of Reclassify, use the Con tool with your input raster as 'Input conditional raster', and the constant value as 'Input true raster or constant value'.

E.g.:

import arcpy
cst = 5                    # your constant value
outCon = Con(r"C:\data\intput.tif", cst)
outCon.save(r"C:\data\output.tif")