Re: [Zope] Making a self written module available to Zope

21 Jan 2005

      On Sat, Jan 22, 2005 at 12:19:11AM +0800, Hong Yaun wrote:
...
If I have a self-written module/package which contains some module level 
methods, how can I make it available for use in the rest of Zope (e.g. 
in page templates, python script objects etc.)?
Because it is just some utility functions, like the zope built-in 
sequence module, I don't want to register them as a zope class with all 
the manage* methods and create zope object from that. And I want the 
module to be initialized once, upon the start of zope or refresh of 
product maybe, to read some configuration file on the file system. 
What's the simplest way to achieve this?
a trivial example:

# this is Products/MyFunctions/__init__.py

from AccessControl import ModuleSecurityInfo

def trivialFunc():
   return True 

def anotherFunc():
   return False

ModuleSecurityInfo('Products.MyFunctions').declarePublic(
    'trivialFunc', 'anotherFunc'
    ) 

# EOF

Note that you cannot declare module-level functions
protected by a particular permission; you can only declare 
them public.
See lib/python/AccessControl/SecurityInfo.py.

You may also find AccessControl.allow_module() useful.
It's defined in that same file.

-- 

Paul Winkler
http://www.slinkp.com