On 6/8/2012 6:41 PM, Ethan Furman wrote: > Dan Stromberg wrote: >> On Fri, Jun 8, 2012 at 3:16 PM, Ethan Furman wrote: >> Dan Stromberg wrote: >>> Did the import semantics change in cpython 3.3a4? >>> >>> I used to be able to import treap.py even though I had a treap >>> directory in my cwd. With 3.3a4, I have to rename the treap >>> directory to see treap.py. >> >> Check out PEP 420 -- Implicit Namespace Packages >> [http://www.python.org/dev/peps/pep-0420/] >> >> >> Am I misinterpreting this? It seems like according to the PEP, I >> should have still been able to import treap.py despite having a >> treap/. But I couldn't; I had to rename treap/ to treap-dir/ first. >> >> During import processing, the import machinery will continue to >> iterate over each directory in the parent path as it does in Python >> 3.2. While looking for a module or package named "foo", for each >> directory in the parent path: >> >> * If <directory>/foo/__init__.py is found, a regular package is >> imported and returned. >> * If not, but <directory>/foo.{py,pyc,so,pyd} is found, a module >> is imported and returned. The exact list of extension varies >> by platform and whether the -O flag is specified. The list >> here is representative. >> * If not, but <directory>/foo is found and is a directory, it is >> recorded and the scan continues with the next directory in the >> parent path. >> * Otherwise the scan continues with the next directory in the >> parent path. > > I do not understand PEP 420 well enough to say if this is intentional or > a bug -- thoughts?
I missed the beginning of this discussion and I need some more details. What directories are on sys.path, where do treap.py and treap/ appear in them, and is there an __init__.py in treap? At first blush it sounds like it should continue working. If you (Dan?) could re-create this in a small example and open a bug, that would be great. Eric. _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
