TP wrote: > Hi everybody, > > I try to play with "sharex" feature. Then, I have been guided to the > class "Grouper" of module cbook: > > http://matplotlib.sourceforge.net/api/cbook_api.html > > So I tried the following example: > > ############################## > from matplotlib.cbook import * > > g = Grouper() > g.join('a', 'b') > ############################## > > I obtain: > > Traceback (most recent call last): > File "test_grouper.py", line 4, in <module> > g.join('a', 'b') > File ".../matplotlib/cbook.py", line 1118, in join > set_a = mapping.setdefault(ref(a), [ref(a)]) > TypeError: cannot create weak reference to 'str' object > > What is the problem?
Grouper is implemented using weak references, which are supported only for some types of objects, as described here: http://docs.python.org/library/weakref.html Evidently the cbook Grouper docstring was written when the implementation was different, and did not use weakref. So, you have found a major bug in the docstring. Eric > > Thanks in advance, > > Julien > ------------------------------------------------------------------------------ Come build with us! The BlackBerry® Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9-12, 2009. Register now! http://p.sf.net/sfu/devconf _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
