I'm having some relatively large temporary files created on my primary hard drive during python scripting with arcpy. Their location appears to default to C:\%appdata%\Local\Temp. I need them to be stored in a different location. I came across a couple postings suggesting to set the ARCTMPDIR environment variable to a different directory, and I've done that, but it doesn't seem to help. The temp files are still created on the C drive.
Are there any other things I can try?