Ed Singleton wrote: > How does one go about creating functions, classes, or callable objects > when you don't know their name in advance? (For example you want to > read their names in from a text file or database). > > I want to use this in a few different places. For example Faces, the > Python Project Management Planner Tool Thingy, uses nested functions > to put tasks within a project: > > def MyProject(): > start = "2006-03-06" > resource = Me > > def Task1(): > start = "2006-03-13" > > def Task2(): > effort = "1w" > > I'd like to load these from a database (using SQLObject), but I'm not > sure how I can define the name of the function from a filed in a > database (or read in from a text file).
This is truly bizarre use of nested functions. Faces must be looking at the compiled function objects to pick this out. I would look into the Project objects themselves and see if there is a way to create them dynamically, rather than trying to build this structure dynamically at run time. > > I'd also like to be able to do this in CherryPy/TurboGears so that I > can create a dynamic site structure based on fields in a database. This seems more practical. I would define a class that is configured by the database can be used as a CP model object. Then you can insert the class into the CP site structure using setattr(). In general you can set an attribute of an object using setattr(): setattr(foo, 'bar', 3) is the same as foo.bar = 3 but the attribute name is specified as a string so it can be determined at runtime. Kent > > Thanks > > Ed > _______________________________________________ > Tutor maillist - Tutor@python.org > http://mail.python.org/mailman/listinfo/tutor > > _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
