[mod_python] The new module loader

Graham Dumpleton grahamd at dscpl.com.au
Fri Apr 21 21:44:13 EDT 2006

On 22/04/2006, at 11:03 AM, Dan Eloff wrote:

> My exact setup is as follows:
> PythonInterpreter pyserver
> PythonOptimize Off
> PythonDebug On
> PythonAutoReload On
> PythonOption mod_python.future.importer pyserver
> # don't invoke our python handler if the file has an extension, it
> doesn't handle any addresses like that
> <Directory />
> 	SetHandler mod_python
> 	PythonHandler C:\Docume~1\Dan\MyDocu~1\PYROOT\pyserver\pyserver.py
> </Directory>
> <LocationMatch "^[^?]*?\.">
> 	SetHandler None
> </LocationMatch>
> The document root is: My Documents/HTDOCS
> And you can see that pyserver.py (and config.py) is located in:
> My Documents/PYROOT/pyserver
> By handler directory this is the one I'm referring too.
> The _config.py that is unable to import the config.py is in:
> My Documents/PYROOT/web

How are the files in this directory (_config.py) being imported in  
the first place?
Is your pyserver.py file importing them explicitly using  

> It is not an issue with your importer that it can't be found, but I
> would like to know how to make it found with out editing every file
> like _config.py, because the pyserver files are used often.
> Thank you very much for taking the time to reply while obviously busy.

It is a Saturday, just running around doing morning shopping and  
house hunting,
nothing too dramatic.

Anyway, time to go off and look at a house on sale now. I think I  
know what the
answer to your problem will be and I'll be covering it when I reply  
to some of
Jorey's comments.


> -Dan
> On 4/21/06, Graham Dumpleton <grahamd at dscpl.com.au> wrote:
>> On 22/04/2006, at 6:35 AM, Dan Eloff wrote:
>>> Hey Graham,
>>> I'm running into one problem related to taking things out of the
>>> packages. I've imported PyServer.module_name in many places in my
>>> modules but of course now PyServer no longer exists and all it's
>>> modules are in the directory with pyserver.py which contains the
>>> handler. I changed import PyServer.config to just import config, but
>>> it doesn't find it.
>>> I'm loathe to use absolute or even relative paths because of how  
>>> many
>>> different places I'd have to modify it. Is there some way to  
>>> globally
>>> add the handler's directory to the search path?
>> I gotta run out the door, so no time to answer all questions right  
>> now.
>> Can you clarify when you say "handler directory" whether you mean
>> the directory that pserver.py is in, or the directory indicated by  
>> the
>> Directory directive where you specified PythonHandler?
>> Also, are you setting PythonPath directive?
>> Oh, and give locations of pyserver.py and config.py, along with  
>> any path
>> used with Directory directive so I have context.
>> In a rush, so take note of comments in:
>>    http://issues.apache.org/jira/browse/MODPYTHON-154
>>    http://www.dscpl.com.au/articles/modpython-007.html#setting-of-
>> pythonpath
>> in the mean time.
>> You may be coming up against preserved behaviour from old
>> importer that frankly I think should not be kept.
>> Thanks.
>> Graham
>>> On 4/21/06, Dan Eloff <dan.eloff at gmail.com> wrote:
>>>> Whoops. I was looking over the code for import_module and I
>>>> figured it
>>>> out. path is meant to be a list, duh. Maybe add an
>>>> assert not path or isinstance(path, list), 'path must be a list of
>>>> paths to search for the module.'
>>>> to your code near the top of the function. Otherwise if path is a
>>>> string, search_path.extend(path) doesn't throw, but it makes a huge
>>>> search_path of single character locations and fails utterly (and
>>>> silently)
>>>> -Dan

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