Hello, I have just tried using alter_code1 on a code tree, and it appears to ignore "from Numeric import *" statements (does not change them to "from numpy.oldnumeric import *"). I looked at the alter_code1.py and it says that the script should warn about importing *. Although the script may not be behaving absolutely correctly, I am more concerned as to whether or not using "from numpy.oldnumeric import *" is likely to result in undetected (non-syntactic) errors. Any feedback would be welcome. Thank you for your time, Trevor Law