Re: What is the best way to do dynamic imports ?

On Dec 31, 1:24 am, marcroy.ol...@xxxxxxxxx wrote:
Hi list and python gurus :-)

I'm playing with somemod_pythonand web development. And in me code I
need to do som dynamic imports.
Right now I just do a:

exec 'import '+some_modulename

But it seems to easy, is there a "dark side" to doing it this way?
(memory use,processing ,etc)
And have to I check if the modul is already loaded?

Another thing is how to call my dynamic imported moduls.
Now I use exec (as with my modules), like this:

exec 'newclass = '+classname+'()'
newclass.somefunction()

Again it seems to easy. Is there a better/proper way to do it?

Do anybody now a good howto or tutorial to this?

Many thanks and hope you all have a happy new year :-)

/marc

If using mod_python, you should use mod_python's own dynamic module
importer. See the documentation for mod_python.apache.import_module()
in:

http://www.modpython.org/live/current/doc-html/pyapi-apmeth.html

There is no need to use __import__ directly. By using mod_python's way
of doing things you can benefit from automatic module reloading
provided certain constraints met.

Graham
.

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