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From "Graham Dumpleton (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (MODPYTHON-118) Allow PythonImport to optionally call function in module.
Date Fri, 17 Mar 2006 04:17:08 GMT
     [ http://issues.apache.org/jira/browse/MODPYTHON-118?page=all ]
Graham Dumpleton resolved MODPYTHON-118:

    Fix Version: 3.3
     Resolution: Fixed

> Allow PythonImport to optionally call function in module.
> ---------------------------------------------------------
>          Key: MODPYTHON-118
>          URL: http://issues.apache.org/jira/browse/MODPYTHON-118
>      Project: mod_python
>         Type: Wish
>   Components: core
>     Versions: 3.3
>     Reporter: Graham Dumpleton
>     Assignee: Graham Dumpleton
>      Fix For: 3.3

> PythonImport can currently be used to specify that a module be imported into a named
interpreter at the time that an Apache child process is initiated. Because all it does is
import the module, if any specific action needs to be triggered, it has to be done as a side
effect of the module import.
> Triggering  actions as a side effect of a module import is generally not a good idea
as failure of the side effect action will cause the import of the module itself to fail if
the code doesn't properly handle this situation. It is generally preferable to import the
module and when that has suceeded only then call a specific function contained in the module
to initiate the action.
> Thus proposed that PythonImport be able to take an optional function to be called upon
successful import of the name module. The syntax would be like that for Python*Handler directives.
>   PythonImport mymodule::myfunc myinterpreter
> This would have the effect of loading module "mymodule" in the interpreter called "myinterpreter"
and then calling "mymodule.myfunc()". No arguments would be supplied to the function when
> Another benefit of this feature would be that it would allow a single module to be able
to contain a number of special initialisation functions that might be triggerable. The user
could selectively call those that might be required.
>   PythonImport mymodule::enable_caching myinterpreter
>   PythonImport mymodule::disable_logging myinterpreter
> At the moment to do that, a distinct module would need to be created for each where the
only thing in the module is the call of the function.
> Note that in using something similar to mod_python option/config values, am talking here
about options that must be able to only be enabled/disable in one spot. The problem with mod_python
option/config values in Apache is that different parts of the document tree can set them to
different values, which for some things is actually a problem, such as the case with PythonAutoReload.

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