Status: Accepted
Owner: ondrej.certik
Labels: Type-Defect Priority-Medium
New issue 1874 by ondrej.certik: mpmath plot tests fail on buildbots
http://code.google.com/p/sympy/issues/detail?id=1874
entrypoint: test_axes
def test_axes():
try:
import pylab
except ImportError:
print "\nSkipping test (pylab not available)\n"
return
fig = pylab.figure()
[/home/buildslave/Buildbot/py2.4-
libs/build/sympy/mpmath/tests/test_visualization.py:15]
def figure(num=None, # autoincrement if None, else integer from 1-N
figsize = None, # defaults to rc figure.figsize
dpi = None, # defaults to rc figure.dpi
facecolor = None, # defaults to rc figure.facecolor
edgecolor = None, # defaults to rc figure.edgecolor
frameon = True,
FigureClass = Figure,
**kwargs
):
"""
call signature::
figure(num=None, figsize=(8, 6), dpi=80, facecolor='w',
edgecolor='k')
Create a new figure and return a :class:`matplotlib.figure.Figure`
instance. If *num* = *None*, the figure number will be
incremented and
a new figure will be created. The returned figure objects have a
*number* attribute holding this number.
If *num* is an integer, and ``figure(num)`` already exists, make
it
active and return a reference to it. If ``figure(num)`` does not
exist
it will be created. Numbering starts at 1, matlab style::
figure(1)
If you are creating many figures, make sure you explicitly call
"close"
on the figures you are not using, because this will enable pylab
to properly clean up the memory.
Optional keyword arguments:
=========
=======================================================
Keyword Description
=========
=======================================================
figsize width x height in inches; defaults to rc
figure.figsize
dpi resolution; defaults to rc figure.dpi
facecolor the background color; defaults to rc
figure.facecolor
edgecolor the border color; defaults to rc figure.edgecolor
=========
=======================================================
rcParams defines the default values, which can be modified in the
matplotlibrc file
*FigureClass* is a :class:`~matplotlib.figure.Figure` or derived
class that will be passed on to :meth:`new_figure_manager` in the
backends which allows you to hook custom Figure classes into the
pylab interface. Additional kwargs will be passed on to your
figure init function.
"""
if figsize is None : figsize = rcParams['figure.figsize']
if dpi is None : dpi = rcParams['figure.dpi']
if facecolor is None : facecolor = rcParams['figure.facecolor']
if edgecolor is None : edgecolor = rcParams['figure.edgecolor']
if num is None:
allnums = [f.num for f in
_pylab_helpers.Gcf.get_all_fig_managers()]
if allnums:
num = max(allnums) + 1
else:
num = 1
else:
num = int(num) # crude validation of num argument
figManager = _pylab_helpers.Gcf.get_fig_manager(num)
if figManager is None:
if get_backend().lower() == 'ps': dpi = 72
figManager = new_figure_manager(num, figsize=figsize,
dpi=dpi,
facecolor=facecolor,
edgecolor=edgecolor,
frameon=frameon,
FigureClass=FigureClass,
**kwargs)
[/usr/lib/pymodules/python2.6/matplotlib/pyplot.py:254]
def new_figure_manager(num, *args, **kwargs):
"""
Create a new figure manager instance
"""
_focus = windowing.FocusManager()
FigureClass = kwargs.pop('FigureClass', Figure)
figure = FigureClass(*args, **kwargs)
window = Tk.Tk()
[/usr/lib/pymodules/python2.6/matplotlib/backends/backend_tkagg.py:90]
def __init__(self, screenName=None, baseName=None, className='Tk',
useTk=1, sync=0, use=None):
"""Return a new Toplevel widget on screen SCREENNAME. A new Tcl
interpreter will
be created. BASENAME will be used for the identification of
the profile file (see
readprofile).
It is constructed from sys.argv[0] without extensions if None
is given. CLASSNAME
is the name of the widget class."""
self.master = None
self.children = {}
self._tkloaded = 0
# to avoid recursions in the getattr code in case of failure, we
# ensure that self.tk is always _something_.
self.tk = None
if baseName is None:
import sys, os
baseName = os.path.basename(sys.argv[0])
baseName, ext = os.path.splitext(baseName)
if ext not in ('.py', '.pyc', '.pyo'):
baseName = baseName + ext
interactive = 0
E self.tk = _tkinter.create(screenName, baseName, className,
interactive, wantobjects, useTk, sync, use)
TclError: no display name and no $DISPLAY environment variable
[/usr/lib/python2.6/lib-tk/Tkinter.py:1646]
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