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Groups > comp.lang.python > #29452

Re: User defined lexical scoping... can I do this?

Newsgroups comp.lang.python
Date 2012-09-18 13:50 -0700
References <d9aec95e-aedb-442d-ab6d-320f43f61b93@googlegroups.com>
Message-ID <f366b2f6-781a-4d66-9386-6be75f631ee3@googlegroups.com> (permalink)
Subject Re: User defined lexical scoping... can I do this?
From weissman.mark@gmail.com

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On Tuesday, September 18, 2012 4:10:32 PM UTC-4, porkfried wrote:
> I want to define a 'with' command that makes entries
> 
> in dictionary available within the local scope, and
> 
> stores new local variables into that dictionary.  The
> 
> original scope should be restored on exit, and called
> 
> functions should not see anything special.  Can I do this?
> 
> 
> 
> my_dict = dict(a=1, b=2)
> 
> with MyScope(my_dict):
> 
>     print "A", a, "B", b
> 
>     x = 3
> 
> print my_dict["x"]
> 
> print x # FAIL, unbound

Well there's wired stuff like this:

In [1]: locals()["x"] = 5

In [2]: print x
5

In [3]: 

but it didn't help me do what I wanted.

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Thread

User defined lexical scoping... can I do this? porkfried <weissman.mark@gmail.com> - 2012-09-18 13:10 -0700
  Re: User defined lexical scoping... can I do this? Thomas Jollans <t@jollybox.de> - 2012-09-18 22:31 +0200
  Re: User defined lexical scoping... can I do this? weissman.mark@gmail.com - 2012-09-18 13:50 -0700
    Re: User defined lexical scoping... can I do this? Thomas Jollans <t@jollybox.de> - 2012-09-18 23:51 +0200
    Re: User defined lexical scoping... can I do this? Terry Reedy <tjreedy@udel.edu> - 2012-09-18 21:38 -0400
      Re: User defined lexical scoping... can I do this? Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-09-19 04:03 +0000
  Re: User defined lexical scoping... can I do this? Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-09-19 00:47 +0100

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