On Wed, Dec 07, 2011 at 03:49:10PM +0000, Michael Meeks <michael.me...@suse.com> wrote: > mod = __import__ ( "actual python-module-name" ) > implHelper = mod.__dict__.get( "g_ImplementationHelper" , None ) > > is supposed to work, or indeed any half-way decent documentation on > what the object is that __import__ returns and by what I don't mean > floral vagueness but a concrete set of methods/properties and their > types that would let us find an internal variable definition ;-)
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mod = __import__("foo")
----
is the same as
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import foo as mod
----
and in case foo and mod is the same, then it's the same as
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import foo
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So that form is just longer form in case the module to import is not
known at build-time, or in case for some weird reason the original
module name is not acceptable.
Second line:
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implHelper = mod.__dict__.get( "g_ImplementationHelper" , None )
----
It "casts" the module to a dictionary (hasmap), then looks up the
"g_ImplementationHelper" key there: if it's not found, it falls back to
None.
In short, it checks if there is a funcion named "g_ImplementationHelper"
in "actual python-module-name".
(No, I'm not sure what else that dictionary contains, you can probably
fool that simple check by providing a *class* named
g_ImplementationHelper in the module, etc.)
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