interactive window vs. script: inconsistent behavior

[Bell, Kevin]

The following works in the interactive window of PythonWin, but fails in
a script.  TypeError: Objects of type 'slice' can not be converted to a
COM VARIANT

I just need to parse out these dates, but it's making me crazy.
Shouldn't it work in both the interactive window and a script?  


>>> d = "5-18-05 to 5-31-05"
>>> print d[0:d.find("to")-1]
5-18-05
>>> print d[d.find("to")+3:]
5-31-05
>>>




Kev