Help with use of code.InteractiveInterpreter for multiline code

[rick_muller at yahoo.com]

I'm trying to embed a Python interpreter in a GUI I'm developing, and
I'm having trouble understanding the proper use of
code.InteractiveInterpreter.

Here's what I'm trying:

% python
Python 2.3 (#1, Sep 13 2003, 00:49:11)
[GCC 3.3 20030304 (Apple Computer, Inc. build 1495)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> from code import InteractiveInterpreter
>>> a = InteractiveInterpreter()
>>> a.runsource('a = 0')
False
>>> a.runsource('b = 0')
False
>>> a.runsource('print a,b')
0 0
False
>>> a.runsource('def q():')
True
>>> a.runsource('    print "hi"')
File "<input>", line 1
print "hi"
^
SyntaxError: invalid syntax
False


What's the proper way to call the interpreter instance for a multiline
example like this?

Thanks in advance,

Rick