Run user given python scripts

[sharat87]

Hello,

I have an application written in python and Tk. My application is to be scriptable with python, i.e., the user gives a small piece of code written in python, and that is to be executed by my application in a different interpreter, with different set of local variables.

I know this is possible as I've seen the application Blender do something like this.

I think what I need for this is embedding python into python applications. But all I could find googling is embedding Python in C/C++.

Any help appreciated.
Thanks

[sharat87]

please guys... any insight on this would be so good!

i am getting really frustrated on this.. I just want to run strings of python code using python.. is that sooo difficult...

sorry for my language, this problem is eating all my time :'(

[shadwickman]

Well if you're using Python 2.x there's the exec expression. I don't know if it still exists in Python 3.0, and I wouldn't normally use it, but it's all I can think of in this case. All you have to do is provide a string that's valid Python and it'll get executed. Like this:

code = "print 'Hello World!'"
exec code

You just need to be careful of quotes and properly escaping them inside the string that will be executed.
Hope that helps!

[sharat87]

Thank you sooo much shadwickman!

I am using 2.6, not in the mood of typing print('hello') already :P

one more thing, can I pass a dictionary to exec containing the locals in which the code is to be executed?

thank you once again :)

[shadwickman]

I'm not entirely sure... Just have a look through the Python documentation! :P

[sharat87]

Thank you for your help... I think I found it

it is exec code in globals, locals

[shadwickman]

Oh thanks! Now I learned something new too :D

EDIT:

exec code in globals(), locals()