Isn't that what the unit system is for? It allows users to use whatever objects they want and register conversions to/from MPL types. If Decimal is a common use-case, then perhaps MPL should provide those converters but the user would (and probably should) still need to activate them.
________________________________________ From: Eric Firing [efir...@hawaii.edu] Sent: Tuesday, September 04, 2012 12:24 PM To: matplotlib-users@lists.sourceforge.net Subject: Re: [Matplotlib-users] type error with python 3.2 and version 1.1.1 of matplotlib (numpy error) On 2012/09/04 9:09 AM, Benjamin Root wrote: > > > On Tue, Sep 4, 2012 at 2:20 PM, Paul Tremblay <paulhtremb...@gmail.com > <mailto:paulhtremb...@gmail.com>> wrote: > > > The following Python code: > > >>ax.fill_between(dates, lower, upper, facecolor='gray', alpha=0.5) > > Produces this error with Python 3.2: > > Traceback (most recent call last): > File "scripts/audit_reports_weekly.py", line 150, in <module> > ax.fill_between(dates, lower, upper, facecolor='gray', alpha=0.5) > File > > "/home/local/ANT/ptrembl/.local/lib/python3.2/site-packages/matplotlib/axes.py", > line 6741, in fill_between > y1 = ma.masked_invalid(self.convert_yunits(y1)) > File > > "/home/local/ANT/ptrembl/.local/lib/python3.2/site-packages/numpy/ma/core.py", > line 2241, in masked_invalid > condition = ~(np.isfinite(a)) > TypeError: ufunc 'isfinite' not supported for the input types, and > the inputs could not be safely coerced to any supported types > according to the casting rule ''safe'' > > > [Decimal('3619.900530366609820157812617'), .....] > > If I change the list from type Decimal to type float, then I don't > get the error. Likewise, if I use Python 2.7, I also don't get an error. > > After reading over the error message, I realize that this error > really results because of numpy, not matplotlib. But I'll go ahead > and post this message, in case you are unaware of the problem. > > > Just a quick note, mpl v1.1.x is not officially supported for py3k. The > upcoming release of v1.2.0 will be the first official release with such > support. > > That being said, it probably would be a good idea to make sure where the > bug lies for this one (numpy or matplotlib). Which version of numpy are > you using? Should this be considered a bug? Or should we say that we don't support Decimal inputs? If we are going to support Decimal inputs, then we need to put in filters to force conversion to float. Do you want to have to check every entry in every list input to see if it Decimal? Eric > > Ben Root ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users
