Issue222830

The sys.executable is not defined for jpython:

JPython 1.1beta4 on java1.3beta (JIT: null)
Copyright (C) 1997-1999 Corporation for National Research Initiatives
>>> import sys
>>> sys.executable
Traceback (innermost last):
  File "<console>", line 1, in ?
AttributeError: module 'sys' has no attribute 'executable'
>>>


The documentation says:

"executable 
     A string giving the name of the executable binary for the Python
     interpreter, on systems where this makes sense. "

I can not check what sys.executable is on a system where this does not
make sense, but from an existing python program (pysol), I guess it is
set to None. If this is the case, then I think it should also be None
for JPython. If my assumtion about sys.executable is wrong, this PR is
best ignored.




*** \java\JPython-1.1beta4\org\python\core\PySystemState.java   Fri
Oct 29 18:36:12 1999
--- PySystemState.java  Sat Dec 18 11:29:52 1999
***************
*** 57,62 ****
--- 57,64 ----
      public static int maxint = Integer.MAX_VALUE;
      public static int minint = Integer.MIN_VALUE;

+     public PyObject executable = Py.None;
+
      private ClassLoader classLoader = null;
      public ClassLoader getClassLoader() {
          return classLoader;

Fixed by setting sys.executable to None.