python - why __builtins__ is both module and dict -

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I am using built-in modules to insert some cases, so they are accessed globally for debugging purposes can be done. The problem with the __Biltions __ module is that it is a module in a main script and there is a word in the module, but depending on the cases my script may be the main script or module, I have to It: 

  ifinstance (__biltins_, dict): __biltions __ ['g_frame'] = 'xxx' Other: settings (__biltins__, 'g_frame', 'xxx')

Is there a lesser measure than this? More importantly, why does __biltions___ behave like this?

This is a script to see. Create a module. A.py: # module- an import b print 'a-builtin:', type (__pinned pin)

Create a module B.PO: 

  # module -b print 'b-builtin:', type (__bidden pin)

Now run python

> $ python a.py b-builtin: & lt; Type 'dict' & gt; A-Biltine: & lt; Type 'module' & gt;

I think you want __ builtin__ Modules (see Note:

CPython implementation details: The name of most modules is __biltions __ (Note ') made available as part of your world. The value of __Biltions __ is usually or module or this module [sic] __Vinicial___ is the value of the attribute. Since it is an implementation scale Is, it can not be done by alternative implementation of Python.


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