--Alex

On Wed, Jun 15, 2011 at 3:04 PM, Terry Reedy <tjreedy@udel.edu> wrote:

On 6/15/2011 11:48 AM, Alex Light wrote:

Alex Light dixit (2011-06-14, 13:44):

> >>> frmglobals = func.__globals__.copy()
> >>> func.__globals__.update(localArgs)
> >>> ret= func(*args, **kwargs)
> >>> func.__globals__.clear()
> >>> func.__globals__.update(frmglobals)

>>> frmglobals = func.__globals__.copy()
>>> func.__globals__.update(localArgs)
>>> ret= func(*args, **kwargs)
>>> func.__globals__.clear()
>>> func.__globals__.update(frmglobals)

with this one:

>>> with _modifyGlobals(func.__globals__, localArgs):
>>> ret = func(*args, **kwargs)

with _modifyGlobals defined as:

>>>from contextlib import contextmanager
>>>
>>>@contextmanager
>>>def _modifyGlobals(glbls, additions):
>>> frmglbls = glbls.copy()
>>> try:
>>> glbls.update(additions)
>>> yield
>>> finally:
>>> glbls.clear()
>>> glbls.update(frmglbls)

Posting code with all the '>>>' prompts added makes it terribly hard to cut and paste to try it out.

--
Terry Jan Reedy

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