[Python-modules-team] Bug#573179: Bug#573179: "AttributeError: 'numpy.bool_' object has no attribute '_mask'" whenever imshow'ing masked array
Sandro Tosi
morph at debian.org
Tue Mar 16 19:50:56 UTC 2010
forwarded 573179 matplotlib-devel at lists.sourceforge.net
thanks
Hello Matplotlib developers,
I'm forwarding this bug a Debian user reported some days ago. It would
be nice it you could give it a look
Thanks in advance,
Sandro
On Tue, Mar 9, 2010 at 17:05, Yaroslav Halchenko <debian at onerussian.com> wrote:
> Package: python-matplotlib
> Version: 0.99.1.2-3
> Severity: normal
>
>
> throws an exception while comparing two masked arrays which have no values (all
> masked out)... sure thing it can't determine vmin/vmax to be used (unless clim
> is used explicitely), but the exception which is thrown is non-informative. I
> thought that upstream might want to make it more user-friendly -- please
> forward upstream.
>
> Here is the code to reproduce:
> import pylab as pl
> import numpy as np
>
> size = (5, 5)
> d = np.ones(size)
> mask = d.astype(bool)
>
> md = np.ma.masked_array(d, mask)
> pl.imshow(md)
> # explicit clim would eliminate the problem
> #pl.clim(0, 1)
> pl.colorbar()
>
> and here is the traceback:
>
> Traceback (most recent call last):
> File "/usr/lib/python2.5/lib-tk/Tkinter.py", line 1417, in __call__
> return self.func(*args)
> File "/usr/lib/pymodules/python2.5/matplotlib/backends/backend_tkagg.py", line 212, in resize
> self.show()
> File "/usr/lib/pymodules/python2.5/matplotlib/backends/backend_tkagg.py", line 215, in draw
> FigureCanvasAgg.draw(self)
> File "/usr/lib/pymodules/python2.5/matplotlib/backends/backend_agg.py", line 314, in draw
> self.figure.draw(self.renderer)
> File "/usr/lib/pymodules/python2.5/matplotlib/artist.py", line 46, in draw_wrapper
> draw(artist, renderer, *kl)
> File "/usr/lib/pymodules/python2.5/matplotlib/figure.py", line 773, in draw
> for a in self.axes: a.draw(renderer)
> File "/usr/lib/pymodules/python2.5/matplotlib/artist.py", line 46, in draw_wrapper
> draw(artist, renderer, *kl)
> File "/usr/lib/pymodules/python2.5/matplotlib/axes.py", line 1701, in draw
> im.draw(renderer)
> File "/usr/lib/pymodules/python2.5/matplotlib/artist.py", line 46, in draw_wrapper
> draw(artist, renderer, *kl)
> File "/usr/lib/pymodules/python2.5/matplotlib/image.py", line 237, in draw
> im = self.make_image(renderer.get_image_magnification())
> File "/usr/lib/pymodules/python2.5/matplotlib/image.py", line 182, in make_image
> x = self.to_rgba(self._A, self._alpha)
> File "/usr/lib/pymodules/python2.5/matplotlib/cm.py", line 166, in to_rgba
> x = self.norm(x)
> File "/usr/lib/pymodules/python2.5/matplotlib/colors.py", line 763, in __call__
> elif vmin==vmax:
> File "/usr/lib/python2.5/site-packages/numpy/ma/core.py", line 3119, in __eq__
> check._mask = mask
> AttributeError: 'numpy.bool_' object has no attribute '_mask'
>
>
>
>
>
>
> -- System Information:
> Debian Release: squeeze/sid
> APT prefers unstable
> APT policy: (901, 'unstable'), (900, 'testing'), (300, 'experimental')
> Architecture: amd64 (x86_64)
>
> Kernel: Linux 2.6.31-1-amd64 (SMP w/2 CPU cores)
> Locale: LANG=en_US, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
> Shell: /bin/sh linked to /bin/bash
>
> Versions of packages python-matplotlib depends on:
> ii libatk1.0-0 1.28.0-1 The ATK accessibility toolkit
> ii libc6 2.10.2-5 Embedded GNU C Library: Shared lib
> ii libcairo2 1.8.8-2 The Cairo 2D vector graphics libra
> ii libfontconfig1 2.8.0-2 generic font configuration library
> ii libfreetype6 2.3.11-1 FreeType 2 font engine, shared lib
> ii libgcc1 1:4.4.2-2 GCC support library
> ii libglib2.0-0 2.22.4-1 The GLib library of C routines
> ii libgtk2.0-0 2.18.6-1 The GTK+ graphical user interface
> ii libpango1.0-0 1.26.0-1 Layout and rendering of internatio
> ii libpng12-0 1.2.40-1 PNG library - runtime
> ii libstdc++6 4.4.2-2 The GNU Standard C++ Library v3
> ii python 2.5.4-9 An interactive high-level object-o
> ii python-cairo 1.8.6-1 Python bindings for the Cairo vect
> ii python-dateutil 1.4.1-3 powerful extensions to the standar
> ii python-gobject 2.16.1-1 Python bindings for the GObject li
> ii python-matplotlib-data 0.99.1.2-3 Python based plotting system (data
> ii python-numpy 1:1.3.0-3+b1 Numerical Python adds a fast array
> ii python-pyparsing 1.5.2-1 Python parsing module
> ii python-support 1.0.6.1 automated rebuilding support for P
> ii python-tz 2009l-1 Python version of the Olson timezo
> ii tcl8.5 8.5.7-1 Tcl (the Tool Command Language) v8
> ii tk8.5 8.5.7-1 Tk toolkit for Tcl and X11, v8.5 -
> ii zlib1g 1:1.2.3.4.dfsg-3 compression library - runtime
>
> Versions of packages python-matplotlib recommends:
> ii python-glade2 2.16.0-1 GTK+ bindings: Glade support
> ii python-tk 2.5.2-1.1 Tkinter - Writing Tk applications
>
> Versions of packages python-matplotlib suggests:
> ii dvipng 1.11-1 convert DVI files to PNG graphics
> ii ipython 0.10-1 enhanced interactive Python shell
> ii librsvg2-common 2.26.0-1 SAX-based renderer library for SVG
> ii python-configobj 4.5.2-2 a simple but powerful config file
> pn python-excelerator <none> (no description available)
> ii python-gtk2 2.16.0-1 Python bindings for the GTK+ widge
> ii python-matplotlib-doc 0.99.0-1 Python based plotting system (docu
> pn python-qt3 <none> (no description available)
> ii python-qt4 4.6-1 Python bindings for Qt4
> ii python-scipy 0.7.0-2+b1 scientific tools for Python
> ii python-traits 3.2.0-1 Manifest typing and reactive progr
> ii python-wxgtk2.8 2.8.10.1-3 wxWidgets Cross-platform C++ GUI t
> ii texlive-extra-utils 2007.dfsg.2-7 TeX Live: TeX auxiliary programs
> ii texlive-latex-extra 2007.dfsg.17-2 TeX Live: LaTeX supplementary pack
>
> -- no debconf information
>
>
>
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>
--
Sandro Tosi (aka morph, morpheus, matrixhasu)
My website: http://matrixhasu.altervista.org/
Me at Debian: http://wiki.debian.org/SandroTosi
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