Dick Moores wrote: > Thanks, Kent. > > At 05:40 AM 9/2/2007, Kent Johnson wrote: >> There are quite a few ways to get a module into the search path, >> modifying PYTHONPATH is just one way. Some others: >> - create a site-packages/ dir in the Python lib dir. Put your >> modules and packages there and they will be found by Python. > > You mean such as site-packages\mine? That was working until I tried > blanking PYTHONPATH, which previously contained > E:\Python25\lib\site-packages\mine\
You need to be clear on the difference between a module and a package. A module is a single python file, imported by its name. A package is a directory containing python files. The package dir must contain a file named __init__.py, which signals to Python that the dir is a package. Modules within a package are imported by packagename.modulename. This might help: http://docs.python.org/tut/node8.html If you put site-packages\mine\ in PYTHONPATH, you are telling Python to look inside mine\ for modules and modules are imported by their simple name. If you just put mine\ in site-packages, you are saying that mine is a *package* so it must contain __init__.py and modules within it will be imported by compound name mine.mymodule. > >> - add a .pth file to site-packages/ that contains the path to the >> dir you want to add to sys.path > > I tried this with no PYTHONPATH. I put pointers.pth in site-packages\ > with the single line, E:\PythonWork\Functions\ . Functions\ contains > functions.py . However, > >>> import functions > Traceback (most recent call last): > File "<input>", line 1, in ? > ImportError: No module named functions Don't know why this didn't work. Does the Functions dir appear on sys.path? > I also tried putting an __init__.py in Functions\ > >>> from Functions import functions > Traceback (most recent call last): > File "<input>", line 1, in ? > ImportError: No module named Functions In this case E:\PythonWork\ should be in sys.path so the *package* Functions will be found. Kent _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
