If you must do this put an empty file called __init__.py in the Extensions folder (you might need to restart). -- Andy McKay Agmweb Consulting http://www.agmweb.ca ----- Original Message ----- From: "Josef Meile" <jmeile@hotmail.com> To: <zope@zope.org> Sent: Thursday, September 05, 2002 2:49 PM Subject: [Zope] Using an external method into another external method

Let's say I have two external methods (foo1 and foo2) in two different files (myFile1 and myFile2 respectively) on my Extensions folder. I would like to import foo1 into the myFile2 where foo2 is.

I have tried:

from myFile2 import foo2 from Extensions.myFile2 import foo2

but it doesn't work. It says that Either myFile2 or Extensions doesn't exist.

I don't want to put them in the same file because foo1 is called several times inside myFile1 and foo2 is called several times in myFile2. So, I would have to join both files into one and it wouldn't be an elegant solution.

Does anybody have any idea?

Thanks in advanced, Josef.

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[Josef Meile]

Let's say I have two external methods (foo1 and foo2) in two different files (myFile1 and myFile2 respectively) on my Extensions folder. I would like to import foo1 into the myFile2 where foo2 is.

I have tried:

from myFile2 import foo2 from Extensions.myFile2 import foo2

but it doesn't work. It says that Either myFile2 or Extensions doesn't exist.

To be able to import a method, its file must be in a Python "package". To accomplish this, you need two things: 1) The directory that contains your file or files must contain a file called "__init__.py". It acn be empty, or it can do some initialization for the package. Usually it is empty. 2) The containing directory, the one with the __init__.py, must be on the Python path. I am not sure whether the Extensions directory is or not, but I do not favor putting much code into it anyway. Most code, I think, should be in some other place and you just have a tiny function for the External method that invokes the real code (along with doing relevant imports). This approach has a number of benefits: - The Extensions directory only contains a minimum number of simple files. - You can set up arbitrary directory structures outside of the Zope installation. - You can easily run code that you wrote for non-Zope purposes withou copying it into Extensions. - You do not have to turn Extensions into a package. There are several ways to get something onto the Python path. The one I like is to create a .pth file. Each line in the *.pth file should contain some path you want to show up in the Python path. Put the file in the same directory as the Python executable (the one for Zope, I mean). Cheers, Tom P