New submission from Mart Sõmermaa <[EMAIL PROTECTED]>: The need to dynamically import module foo given a module name string 'bar.baz.foo' is quite common.
Quite often, the hack described in http://bugs.python.org/issue2090 is used (see e.g. the Google code results linked from the issue). Quoting Brett Cannon from the issue: "I plan to add a much simpler API to the imp module for people to use directly so that these abuses don't continue." Although there are reasonable workarounds, let the current ticket be a remainder for Brett that his plan is indeed needed. Perhaps the easiest thing to do would be to add yet another argument, e.g. 'toplevel', to __import__, such that: >>> __import__('imprt.foo.foo') # toplevel=True by default <module 'imprt' from 'imprt/__init__.pyc'> >>> __import__('imprt.foo.foo', toplevel=False) <module 'imprt.foo.foo' from 'imprt/foo/foo.pyc'> The latter can currently be achieved by >>> __import__('imprt.foo.foo', {}, {}, ['foo']) <module 'imprt.foo.foo' from 'imprt/foo/foo.pyc'> which is cumbersome if the module name is given in a string, resulting in unnecessarily complex code: modname = "imprt.foo.foo" >>> __import__(modname, {}, {}, [modname.rsplit(".", 1)[-1]]) <module 'imprt.foo.foo' from 'imprt/foo/foo.pyc'> ---------- components: Interpreter Core, Library (Lib) messages: 76460 nosy: mrts severity: normal status: open title: Add an easy way to __import___ submodules type: feature request versions: Python 2.7, Python 3.1 _______________________________________ Python tracker <[EMAIL PROTECTED]> <http://bugs.python.org/issue4438> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
