I reinstalled the latest Windows version 8.8. repeating now a second time the show(g1) yields error!
RuntimeError Traceback (most recent call last)
<ipython-input-20-2dbcc4c9974d> in <module>()
----> 1 show(g1)
/opt/sagemath-8.8/local/lib/python2.7/site-packages/sage/repl/rich_output/pretty_print.pyc in show(*args, **kwds)
256 args[0].show()
257 return
--> 258 pretty_print(*args, **kwds)
/opt/sagemath-8.8/local/lib/python2.7/site-packages/sage/repl/rich_output/pretty_print.pyc in pretty_print(*args, **kwds)
227 pass
228 elif len(args) == 1:
--> 229 dm.display_immediately(*args, **kwds)
230 else:
231 SequencePrettyPrinter(*args, **kwds).pretty_print()
/opt/sagemath-8.8/local/lib/python2.7/site-packages/sage/repl/rich_output/display_manager.pyc in display_immediately(self, obj, **rich_repr_kwds)
833 1/2
834 """
--> 835 plain_text, rich_output = self._rich_output_formatter(obj, rich_repr_kwds)
836 self._backend.display_immediately(plain_text, rich_output)
837
/opt/sagemath-8.8/local/lib/python2.7/site-packages/sage/repl/rich_output/display_manager.pyc in _rich_output_formatter(self, obj, rich_repr_kwds)
633 if rich_output is None:
634 rich_output = self._preferred_text_formatter(
--> 635 obj, plain_text=plain_text, **rich_repr_kwds)
636 # promote output container types to backend-specific containers
637 plain_text = self._promote_output(plain_text)
/opt/sagemath-8.8/local/lib/python2.7/site-packages/sage/repl/rich_output/display_manager.pyc in _preferred_text_formatter(self, obj, plain_text, **kwds)
535 return out
536 if want == 'latex' and OutputLatex in supported:
--> 537 out = self._backend.latex_formatter(obj, **kwds)
538 if type(out) is not OutputLatex:
539 raise OutputTypeException('backend returned wrong output type, require Latex')
/opt/sagemath-8.8/local/lib/python2.7/site-packages/sage/repl/rich_output/backend_base.pyc in latex_formatter(self, obj, **kwds)
482 mathjax = MathJax().eval(obj, mode='plain', combine_all=True)
483 else:
--> 484 mathjax = MathJax().eval(obj, mode='plain', combine_all=False)
485 from sage.repl.rich_output.output_basic import OutputLatex
486 return OutputLatex(str(mathjax))
/opt/sagemath-8.8/local/lib/python2.7/site-packages/sage/misc/latex.pyc in eval(self, x, globals, locals, mode, combine_all)
1951 """
1952 # Get a regular LaTeX representation of x
-> 1953 x = latex(x, combine_all=combine_all)
1954
1955 # The following block, hopefully, can be removed in some future MathJax.
/opt/sagemath-8.8/local/lib/python2.7/site-packages/sage/misc/latex.pyc in __call__(self, x, combine_all)
923 """
924 if has_latex_attr(x):
--> 925 return LatexExpr(x._latex_())
926 try:
927 f = latex_table[type(x)]
/opt/sagemath-8.8/local/lib/python2.7/site-packages/sage/plot/graphics.py in _latex_(self, **kwds)
3240 """
3241 tmpfilename = tmp_filename(ext='.pgf')
-> 3242 self.save(filename=tmpfilename, **kwds)
3243 with open(tmpfilename, "r") as tmpfile:
3244 latex_list = tmpfile.readlines()
/opt/sagemath-8.8/local/lib/python2.7/site-packages/sage/misc/decorators.pyc in wrapper(*args, **kwds)
410 kwds[self.name + "options"] = suboptions
411
--> 412 return func(*args, **kwds)
413
414 # Add the options specified by @options to the signature of the wrapped
/opt/sagemath-8.8/local/lib/python2.7/site-packages/sage/plot/graphics.py in save(self, filename, **kwds)
3165 rc_backup = (rcParams['ps.useafm'], rcParams['pdf.use14corefonts'],
3166 rcParams['text.usetex']) # save the rcParams
-> 3167 figure = self.matplotlib(**options)
3168 # You can output in PNG, PS, EPS, PDF, PGF, or SVG format, depending
3169 # on the file extension.
/opt/sagemath-8.8/local/lib/python2.7/site-packages/sage/plot/graphics.py in matplotlib(self, filename, xmin, xmax, ymin, ymax, figsize, figure, sub, axes, axes_labels, axes_labels_size, fontsize, frame, verify, aspect_ratio, gridlines, gridlinesstyle, vgridlinesstyle, hgridlinesstyle, show_legend, legend_options, axes_pad, ticks_integer, tick_formatter, ticks, title, title_pos, base, scale, stylesheet, typeset)
2616 pass
2617 g.set_options(opts)
-> 2618 g._render_on_subplot(subplot)
2619 if hasattr(g, '_bbox_extra_artists'):
2620 self._bbox_extra_artists.extend(g._bbox_extra_artists)
/opt/sagemath-8.8/local/lib/python2.7/site-packages/sage/plot/contour_plot.py in _render_on_subplot(self, subplot)
159 contours = options['contours']
160 if 'cmap' in options:
--> 161 cmap = get_cmap(options['cmap'])
162 elif fill or contours is None:
163 cmap = get_cmap('gray')
/opt/sagemath-8.8/local/lib/python2.7/site-packages/sage/plot/colors.py in get_cmap(cmap)
1418 elif isinstance(cmap, six.string_types):
1419 if not cmap in cm.datad:
-> 1420 raise RuntimeError("Color map %s not known (type import matplotlib.cm; matplotlib.cm.datad.keys() for valid names)" % cmap)
1421 return cm.__dict__[cmap]
1422
RuntimeError: Color map spectral not known (type import matplotlib.cm; matplotlib.cm.datad.keys() for valid names)
