Hello,
I'm having a bit of trouble isolating my scripts from each other in my
embedded Python interpreter, so that their global namespaces don't get
all entangled. I've had some luck with PyRun_FileEx(), as you can
specify dictionaries to use for the globals and locals, but it seems
that you can't do the same for PyEval_CallObje ct() (which i use for
calling the callbacks previously registered by scripts run via
PyRun_FileEx()) . Is there any way to substitute the current global/local
dictionaries, run the callback, then switch back to the default? It
would be just as good if I could switch between several sets of global
variable dictionaries, one for each script; unfortunately, the
documentation is less than informative on this point (there isn't even a
formal defintion for PyEval_CallObje ct()). Also, I'm aware that eval()
and exec() allow you to pass in global/local dictionaries, but I think
it'd be a bit wasteful to drop into Python, run exec(), then have that
call my callback, rather than just calling the callback directly from
the host program.
Thanks in advance
3  1497 
Faisal Alquaddoomi wrote: Hello,
I'm having a bit of trouble isolating my scripts from each other in my
embedded Python interpreter, so that their global namespaces don't get
all entangled.
[tales of woe ...]
Would it help to use PyNewInterprete r to create subinterpreters for each
of the different scripts?
regards
Steve
--
Steve Holden +44 150 684 7255 +1 800 494 3119
Holden Web LLC www.holdenweb.com
PyCon TX 2006 www.python.org/pycon/
Steve Holden wrote: Faisal Alquaddoomi wrote:
Hello,
I'm having a bit of trouble isolating my scripts from each other in my
embedded Python interpreter, so that their global namespaces don't get
all entangled.
[tales of woe ...]
Would it help to use PyNewInterprete r to create subinterpreters for each
of the different scripts?
regards
Steve
That sounds like a reasonable suggestion, but would it be inefficient to
spawn a whole new interpreter for each script, where what I really want
to do is just change the dictionaries used for globals and locals? I'll
try that out for now, but I'm still hoping there's some way to change
those dictionaries without having to do anything excessive.
Thanks for the advice,
Faisal
Faisal Alquaddoomi wrote: Steve Holden wrote:
Faisal Alquaddoomi wrote:
Hello,
I'm having a bit of trouble isolating my scripts from each other in my
embedded Python interpreter, so that their global namespaces don't get
all entangled.
[tales of woe ...]
Would it help to use PyNewInterprete r to create subinterpreters for each
of the different scripts?
regards
Steve
That sounds like a reasonable suggestion, but would it be inefficient to
spawn a whole new interpreter for each script, where what I really want
to do is just change the dictionaries used for globals and locals? I'll
try that out for now, but I'm still hoping there's some way to change
those dictionaries without having to do anything excessive.
I guess only benchmarking can answer that question. However, given that
the code will be common to all instances you may find that it isn't too
resource-intensive. I agree it does seem much more heavyweight than
replacing execution context.
Good luck!
regards
Steve
--
Steve Holden +44 150 684 7255 +1 800 494 3119
Holden Web LLC www.holdenweb.com
PyCon TX 2006 www.python.org/pycon/ This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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