Bugs: S-Lang Module Conflicts

Caveats

1. Duplicate Definition error due to namespace conflict

Bugs

1. Importing certain combinations of modules causes problems
   (Mac OS X)

Caveats

1. Duplicate Definition error due to namespace conflict

   Importing the isis module in Sherpa or importing both isis and sherpa in ChIPS or slsh will produce a Duplicate Definition error. The problem arises because some function names (e.g. set_axes) are common to both modules. The issue appears only when isis is imported into the global namespace (i.e. import("isis")).

   Note that this is not a bug but rather the expected behavior of the S-Lang interpreter when encountering duplicate definitions for intrinsic functions.

   Workaround:

   Import isis into a local namespace: import("isis","foo").

Bugs

1. Importing certain combinations of modules causes problems
   (Mac OS X)

   The following table lists the problems, the S-Lang interpreter(s) to which they apply, and suggested workarounds:

   Module	Interpreter	Problem	Workaround
   sherpa with pixlib or caldb; isis with chips or varmm	ChIPS, slsh	A list of "undefined symbols" is printed at exit from the interpreter. The error occurs only at exit and has no effect on the preceding session.	None