Help with use of code.InteractiveInterpreter for multiline code

[rick_muller]

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

[Jean Brouwers]

Take a look at the source code of the code module (file code.py in the
lib directory). The push() method of the InteractiveConsole class
shows how to handle multi-line statements.

Basically, keep collecting lines as long as the result returned by the
runsource() call is true. Maybe instead of calling the runsource()
method, just call the push() method.

/Jean Brouwers
In article <11*********************@z14g2000cwz.googlegroups. com>,
<"ri*********@yahoo.com"> wrote:

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

[Jim Sizelove]

ri*********@yahoo.com wrote:

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.
[examples of calling the interpreter instance] What's the proper way to call the interpreter instance for a multiline
example like this?

Thanks in advance,

Rick

I haven't worked with the code module before, but here is my go at it.
It seems that the call to runsource() needs the entire multiline code at
once, with newlines including a trailing newline:

import code
a = code.InteractiveInterpreter()
a.runsource('def q():\n print "hi, a"\n') False a.runsource('q()') hi, a
False

With the InteractiveConsole, you can push each line of code
individually, like so:
import code
b = code.InteractiveConsole()
b.push('def q():') True b.push(' print "hi, b"') True b.push('') False b.runsource('q()')

hi, b
False

HTH,
Jim