Le Sunday 22 June 2008 16:07:37 Saul Spatz, vous avez écrit : > Hi, > > I'm making a project into my first package, mainly for organization, but > also to learn how to do it. I have a number of data files, both > experimental results and PNG files. My project is organized as a root > directory, with two subdirectories, src and data, and directory trees > below them. I put the root directory in my pythonpath, and I've no > trouble accessing the modules, but for the data, I'm giving relative > paths, that depend on the current working directory. > > This has obvious drawbacks, and hard-coding a directory path is worse. > Where the data files are numbers, I can simply incorporate them in > python scripts that initialize data structures , but what can I do with > the image files?
For a small project you can do the same with images or any kind of data, for instance by serializing your objects with pickle in ascii mode and putting the result in a string constant (well, I never did it and can't guarantee it will work, this is only an example of what people do in many situations) > > What is the usual way of dealing with this? > A more conventional way is to provide a configure script to run before compiling/installing. That script should let the user choose where to install datafiles with a command line option such as --datadir=/path or provide a reasonable default value. Then it will auto-generate some code defining this value as a global variable, to make it accessible to the rest of your own code. Ideally, your app would also provide a command line option or an environment variable to override this hard-coded setting at runtime. But maybe the distutils tools have some features for this, I don't know enough of them to tell that. -- Cédric Lucantis -- http://mail.python.org/mailman/listinfo/python-list
