toto wrote: >I'm trying to find some howto, tutorial in order to create a python program >that will allow plug-in programming. I've found various tutos on how to >write a plug-in for soft A or soft B but none telling me how to do it in my >own programs. Do you have any bookmarks ? > > There is more than one way to accomplish this, but one of the simplest is to provide a directory where plugins are loaded, and put an __init__.py in it which automatically finds files in the directory that conform to some standard, and imports them (or tries to).
Here's a snippet from one of my projects: import sys, os from Operators import Operator, operate, Ops # Find and load all available plugin modules: operator_path = os.path.abspath(__path__[0]) for module_file in filter( lambda n: n[-3:]=='.py' and n not in ('__init__.py', 'Operators.py'), os.listdir(operator_path)): #print "Loading %s" % module_file f, e = os.path.splitext(module_file) __import__(f, globals(), locals(), []) (Operators.py is in the same directory and includes general purpose code that the plugins use -- I think it might be better design to put that in the parent directory. But that's awkward until Python introduces relative import notation -- supposed to be coming in v2.5). -- http://mail.python.org/mailman/listinfo/python-list