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Re: from import and __init__.py

Steve Holden

3/25/2010 11:42:00 AM

egbert wrote:
> When I do 'from some_package import some_module'
> the __init__.py of some_package will be run.
> However, there will not be anything like a package-module,
> and the effects of __init__.py seem all to be lost. Is that true ?
> Or can I still do something useful with __init__.py ?
> e

If I understand correctly what you mean byt a "package-module" then
__init__.py is exactly what you are looking for.

Many packages are built with an empty __init__.py because they are
intended mostly to build a tree-like set of namespaces, but __init__.py
*is* run when the package is imported, and its namespace is bound to the
name of the package within the importing program. So if you have code
you want to run when the package is imported, put it there.

regards
Steve
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