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Newsgroups: comp.lang.python
Date: Tue, 9 Oct 2012 08:36:59 -0700 (PDT)
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Subject: Re: surprising behaviour of global dictionaries
From: Michele Simionato <michele.simionato@gmail.com>
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On Tuesday, October 9, 2012 5:24:17 PM UTC+2, Peter Otten wrote:
> Seriously, you shouldn't use the main script as a library; it is put into 
> 
> the sys.modules cache under the "__main__" key. Subsequent imports under its 
> 
> real name will not find that name in the cache and import another instance 
> 
> of the module, with puzzling effects

Actually I usually never use the main script as a library, this is why I never experience this puzzling behavior before. But now it is clear, thanks.