allocate TWO interpreters in a C program?

[Torsten Mohr]

Hi,

i can embed Perl into a C program and allocate MORE THAN ONE
interpreter if i want to. They are independent from each other.

Is this also possible in Python?


Best regards,
Torsten.

 

[Andrew Dalke]

Torsten Mohr:

i can embed Perl into a C program and allocate MORE THAN ONE
interpreter if i want to. They are independent from each other.

Is this also possible in Python?

As no one else has answered, I'll take a stab at it, on the assumption
that a wrong answer will be corrected.

No, it isn't possible. Various bits of state, like exceptions, are stored
in global variable (actually thread global I think). I think there is other
global state, like sys.modules which contains all of the imported modules.

There are experimental systems like PyPy which can provide
independent interpreters but I know little about them.

Andrew
(e-mail address removed)

 

[David E. Konerding DSD staff]

Torsten Mohr:

As no one else has answered, I'll take a stab at it, on the assumption
that a wrong answer will be corrected.

No, it isn't possible. Various bits of state, like exceptions, are stored
in global variable (actually thread global I think). I think there is other
global state, like sys.modules which contains all of the imported modules.

There are experimental systems like PyPy which can provide
independent interpreters but I know little about them.

Andrew
(e-mail address removed)

Actually, more than one *sub*-interpreter can be instantiated in a single C program.

http://python.org/doc/current/api/initialization.html

However, upon close reading, it's hardly as independent as you might hope.

But for fun also read:

http://www.python.org/peps/pep-0311.html

since it seems to imply that multiple subinterpreters are not a frequently used feature.

Dave