On Tue, 23 Oct 2012 10:50:11 -0600, Ian Kelly wrote: >> if someone is foolish enough to use the >> >> from xyz import * >> >> notation... > > It's already a SyntaxError to use a wildcard import anywhere other than > the module level, so its use can only affect global variables.
In Python 3.x. In Python 2.x, which includes the most recent version of three of the four "big implementations" (PyPy, Jython, IronPython) it is still legal, at least in theory. I haven't tested PyPy, but IronPython 2.6 allows wildcard imports inside functions without even a warning. Bizarrely, Jython 2.5 *appears* to allow them with only a warning, but they don't take: steve@runes:~$ jython Jython 2.5.1+ (Release_2_5_1, Aug 4 2010, 07:18:19) [OpenJDK Client VM (Sun Microsystems Inc.)] on java1.6.0_18 Type "help", "copyright", "credits" or "license" for more information. >>> def test(): ... from math import * ... return cos ... <stdin>:2: SyntaxWarning: import * only allowed at module level >>> test() Traceback (most recent call last): File "<stdin>", line 1, in <module> File "<stdin>", line 3, in test NameError: global name 'cos' is not defined So, legal or not, they're definitely something you want to avoid. -- Steven -- http://mail.python.org/mailman/listinfo/python-list
