Hi all, I'm new to the list and relatively new to python, and very new to the use and creation of packages.
Let's say I have these files in one directory: PrintBase.py PrintHello.py PrintBye.py PrintBase defines a very simple base class PrintBase, whose __init__ method initializes a member to an optionally provided string (otherwise the string is empty) and whose PrintMe method prints the string given (or empty string otherwise). PrintHello defines a class that inherits from PrintBase and whose PrintMe method prepends a 'Hello, ' to the provided string. PrintBye defines a class that inherits from PrintBase and whose PrintMe method prepends a 'Good-bye' to the provided string. Since all the files are in the same directory, I can use import statements like from PrintHello import PrintHello ... I'd like to reorganize the files so they're like the Sound example in the Python tutorial: PrintMe/ PrintMe/PrintBase/PrintBase.py PrintMe/PrintHello/PrintHello.py PrintMe/PrintBye/PrintBye.py I've created empty __init__.py files in each of the subdirectories. Here I run into a number of problems and get confused - my goal is to keep the import statements as they are (the actual files I'd be editing are many and I'd rather avoid having to edit them all) - is there something I can put in the __init__.py files so that the modules are brought into namespace w/o having to use absolute module notation? As simple tests, I've tried running different import commands in the python interpreter: I've tried adding the absolute directory paths to __path__ in each __init__.py per subdirectory, and adding the paths to sys.path. When I do that and run the python intepreter and try 'from PrintMe.PrintHello import PrintHello' I get an error saying 'Error when calling the metaclass bases, module.__init__() takes at most 2 arguments (3 given)'. The same code functioned fine when all the files were in the same directory, so I'm confused about why the interpreter thinks I'm passing 3 arguments along. W/o those directories in sys.path I get an import error (there is no module named 'PrintBase'). Also, if I'm in one of the subdirectories I get a similar error when attempting to import the toplevel (PrintMe) package. (Essentially I would like to structure the directories (er package?) so that files in one subdirectory can subclass base classes from a sibling (not parent) directory, ideally in a way that doesn't require each file to state something like 'from 'PrintMe.PrintHello ... import ...' but instead 'from PrintHello import ...'. Is this possible, and if so how can I go about doing it?) Many Thanks! Andrew
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