On Tue, 08 Feb 2011 10:56:52 +1100, Ben Finney <ben+pyt...@benfinney.id.au> wrote:
>Richard Holmes <richa...@dslextreme.com> writes: > >> Thanks, Ben. It turns out that I imported both Image and Tkinter and >> Tkinter has an Image class that masked the Image class in the Image >> module. I solved the problem by moving the Image code to a separate >> module > >This is a classic problem known as namespace clobbering. > >It is best to *avoid* the recommendations made in many libraries of >from foo import *, because that will clobber any names in your >namespace that happen to match names in the foo module. > >Rather, import Tkinter and PIL as distinct namespaces:: > > >>> import PIL.Image > >>> import Tkinter as tk > >>> tk.Image > <class Tkinter.Image at 0xf6d7f3c0> > >>> PIL.Image > <module 'PIL.Image' from > >>> '/usr/lib/python2.6/dist-packages/PIL/Image.pyc'> > >and then you know that none of the names from those modules will clobber >existing ones. Thanks. Message understood. -- http://mail.python.org/mailman/listinfo/python-list
