<div dir="ltr"><div style="font-family:arial,sans-serif;font-size:13px">Hi,</div><div style="font-family:arial,sans-serif;font-size:13px">When I want to save a plot collection object. I get this error and I would like to know how to resolve this.</div>
<div style="font-family:arial,sans-serif;font-size:13px"><div>In [3]: pc=pc=PlotCollection(pf,[ 0.5808,0.5398, 0.4504 ])</div><div>yt : [INFO ] 2013-07-07 18:02:49,267 Created plot collection with default plot-center = [0.58079999999999998, 0.53979999999999995, 0.45040000000000002]</div>
<div><br></div><div>In [4]: pc.add_thin_projection("particle_density",0,0.1)</div><div>yt : [INFO ] 2013-07-07 18:03:19,026 Getting the binary hierarchy</div><div>yt : [INFO ] 2013-07-07 18:03:19,032 Finished with binary hierarchy reading</div>
<div>yt : [INFO ] 2013-07-07 18:03:38,125 Projection completed</div><div>Out[4]: <yt.visualization.plot_types.PCProjectionPlot at 0x3876550></div></div><div style="font-family:arial,sans-serif;font-size:13px">In [20]: pc.save()</div>
<div style="font-family:arial,sans-serif;font-size:13px">---------------------------------------------------------------------------</div><div style="font-family:arial,sans-serif;font-size:13px">ParseFatalException Traceback (most recent call last)</div>
<div style="font-family:arial,sans-serif;font-size:13px"><ipython-input-20-aabd56408a20> in <module>()</div><div style="font-family:arial,sans-serif;font-size:13px">----> 1 pc.save()</div><div style="font-family:arial,sans-serif;font-size:13px">
<br></div><div style="font-family:arial,sans-serif;font-size:13px">/home/safarzadeh/yt-x86_64/src/yt-hg/yt/visualization/plot_collection.pyc in save(self, basename, format, override, force_save)</div><div style="font-family:arial,sans-serif;font-size:13px">
181 for plot in self.plots:</div><div style="font-family:arial,sans-serif;font-size:13px"> 182 fn.append(plot.save_image(basename, format=format, </div><div style="font-family:arial,sans-serif;font-size:13px">
--> 183 override=override, force_save=force_save))</div><div style="font-family:arial,sans-serif;font-size:13px"> 184 <a href="http://mylog.info/" target="_blank">mylog.info</a>("Saved %s", fn[-1])</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 185 if ytcfg.getboolean("yt", "__withinreason"):</div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">
/home/safarzadeh/yt-x86_64/src/yt-hg/yt/visualization/plot_types.pyc in save_image(self, prefix, format, override, force_save, figure_canvas)</div><div style="font-family:arial,sans-serif;font-size:13px"> 120 canvas.print_figure(fn)</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 121 else:</div><div style="font-family:arial,sans-serif;font-size:13px">--> 122 only_on_root(canvas.print_figure, fn)</div><div style="font-family:arial,sans-serif;font-size:13px">
123 self["Type"] = self._type_name</div><div style="font-family:arial,sans-serif;font-size:13px"> 124 self["GeneratedAt"] = self.data.pf.unique_identifier</div><div style="font-family:arial,sans-serif;font-size:13px">
<br></div><div style="font-family:arial,sans-serif;font-size:13px">/home/safarzadeh/yt-x86_64/src/yt-hg/yt/funcs.pyc in only_on_root(func, *args, **kwargs)</div><div style="font-family:arial,sans-serif;font-size:13px"> 366 cfg_option = "__topcomm_parallel_rank"</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 367 if not ytcfg.getboolean("yt","__parallel"):</div><div style="font-family:arial,sans-serif;font-size:13px">--> 368 return func(*args,**kwargs)</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 369 if ytcfg.getint("yt", cfg_option) > 0: return</div><div style="font-family:arial,sans-serif;font-size:13px"> 370 return func(*args, **kwargs)</div>
<div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/backend_bases.pyc in print_figure(self, filename, dpi, facecolor, edgecolor, orientation, format, **kwargs)</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 2015 orientation=orientation,</div><div style="font-family:arial,sans-serif;font-size:13px"> 2016 bbox_inches_restore=_bbox_inches_restore,</div>
<div style="font-family:arial,sans-serif;font-size:13px">-> 2017 **kwargs)</div><div style="font-family:arial,sans-serif;font-size:13px"> 2018 finally:</div><div style="font-family:arial,sans-serif;font-size:13px">
2019 if bbox_inches and restore_bbox:</div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/backends/backend_agg.pyc in print_png(self, filename_or_obj, *args, **kwargs)</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 443 </div><div style="font-family:arial,sans-serif;font-size:13px"> 444 def print_png(self, filename_or_obj, *args, **kwargs):</div><div style="font-family:arial,sans-serif;font-size:13px">
--> 445 FigureCanvasAgg.draw(self)</div><div style="font-family:arial,sans-serif;font-size:13px"> 446 renderer = self.get_renderer()</div><div style="font-family:arial,sans-serif;font-size:13px"> 447 original_dpi = renderer.dpi</div>
<div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/backends/backend_agg.pyc in draw(self)</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 399 </div><div style="font-family:arial,sans-serif;font-size:13px"> 400 self.renderer = self.get_renderer()</div><div style="font-family:arial,sans-serif;font-size:13px">
--> 401 self.figure.draw(self.renderer)</div><div style="font-family:arial,sans-serif;font-size:13px"> 402 </div><div style="font-family:arial,sans-serif;font-size:13px"> 403 def get_renderer(self):</div>
<div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/artist.pyc in draw_wrapper(artist, renderer, *args, **kwargs)</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 53 def draw_wrapper(artist, renderer, *args, **kwargs):</div><div style="font-family:arial,sans-serif;font-size:13px"> 54 before(artist, renderer)</div>
<div style="font-family:arial,sans-serif;font-size:13px">---> 55 draw(artist, renderer, *args, **kwargs)</div><div style="font-family:arial,sans-serif;font-size:13px"> 56 after(artist, renderer)</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 57 </div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/figure.pyc in draw(self, renderer)</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 882 dsu.sort(key=itemgetter(0))</div><div style="font-family:arial,sans-serif;font-size:13px"> 883 for zorder, func, args in dsu:</div><div style="font-family:arial,sans-serif;font-size:13px">
--> 884 func(*args)</div><div style="font-family:arial,sans-serif;font-size:13px"> 885 </div><div style="font-family:arial,sans-serif;font-size:13px"> 886 renderer.close_group('figure')</div>
<div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/artist.pyc in draw_wrapper(artist, renderer, *args, **kwargs)</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 53 def draw_wrapper(artist, renderer, *args, **kwargs):</div><div style="font-family:arial,sans-serif;font-size:13px"> 54 before(artist, renderer)</div>
<div style="font-family:arial,sans-serif;font-size:13px">---> 55 draw(artist, renderer, *args, **kwargs)</div><div style="font-family:arial,sans-serif;font-size:13px"> 56 after(artist, renderer)</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 57 </div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/axes.pyc in draw(self, renderer, inframe)</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 1981 </div><div style="font-family:arial,sans-serif;font-size:13px"> 1982 for zorder, a in dsu:</div><div style="font-family:arial,sans-serif;font-size:13px">
-> 1983 a.draw(renderer)</div><div style="font-family:arial,sans-serif;font-size:13px"> 1984 </div><div style="font-family:arial,sans-serif;font-size:13px"> 1985 renderer.close_group('axes')</div>
<div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/artist.pyc in draw_wrapper(artist, renderer, *args, **kwargs)</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 53 def draw_wrapper(artist, renderer, *args, **kwargs):</div><div style="font-family:arial,sans-serif;font-size:13px"> 54 before(artist, renderer)</div>
<div style="font-family:arial,sans-serif;font-size:13px">---> 55 draw(artist, renderer, *args, **kwargs)</div><div style="font-family:arial,sans-serif;font-size:13px"> 56 after(artist, renderer)</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 57 </div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/axis.pyc in draw(self, renderer, *args, **kwargs)</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 1047 self._update_label_position(ticklabelBoxes, ticklabelBoxes2)</div><div style="font-family:arial,sans-serif;font-size:13px"> 1048 </div><div style="font-family:arial,sans-serif;font-size:13px">
-> 1049 self.label.draw(renderer)</div><div style="font-family:arial,sans-serif;font-size:13px"> 1050 </div><div style="font-family:arial,sans-serif;font-size:13px"> 1051 self._update_offset_text_position(ticklabelBoxes, ticklabelBoxes2)</div>
<div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/artist.pyc in draw_wrapper(artist, renderer, *args, **kwargs)</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 53 def draw_wrapper(artist, renderer, *args, **kwargs):</div><div style="font-family:arial,sans-serif;font-size:13px"> 54 before(artist, renderer)</div>
<div style="font-family:arial,sans-serif;font-size:13px">---> 55 draw(artist, renderer, *args, **kwargs)</div><div style="font-family:arial,sans-serif;font-size:13px"> 56 after(artist, renderer)</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 57 </div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/text.pyc in draw(self, renderer)</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 524 renderer.open_group('text', self.get_gid())</div><div style="font-family:arial,sans-serif;font-size:13px"> 525 </div><div style="font-family:arial,sans-serif;font-size:13px">
--> 526 bbox, info = self._get_layout(renderer)</div><div style="font-family:arial,sans-serif;font-size:13px"> 527 trans = self.get_transform()</div><div style="font-family:arial,sans-serif;font-size:13px">
528 </div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/text.pyc in _get_layout(self, renderer)</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 307 w, h, d = get_text_width_height_descent(clean_line,</div><div style="font-family:arial,sans-serif;font-size:13px"> 308 self._fontproperties,</div>
<div style="font-family:arial,sans-serif;font-size:13px">--> 309 ismath=ismath)</div><div style="font-family:arial,sans-serif;font-size:13px"> 310 else:</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 311 w, h, d = 0, 0, 0</div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">
/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/backends/backend_agg.pyc in get_text_width_height_descent(self, s, prop, ismath)</div><div style="font-family:arial,sans-serif;font-size:13px"> 177 if ismath:</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 178 ox, oy, width, height, descent, fonts, used_characters = \</div><div style="font-family:arial,sans-serif;font-size:13px">--> 179 self.mathtext_parser.parse(s, self.dpi, prop)</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 180 return width, height, descent</div><div style="font-family:arial,sans-serif;font-size:13px"> 181 </div><div style="font-family:arial,sans-serif;font-size:13px">
<br></div><div style="font-family:arial,sans-serif;font-size:13px">/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/mathtext.pyc in parse(self, s, dpi, prop)</div><div style="font-family:arial,sans-serif;font-size:13px">
2972 self.__class__._parser = Parser()</div><div style="font-family:arial,sans-serif;font-size:13px"> 2973 </div><div style="font-family:arial,sans-serif;font-size:13px">-> 2974 box = self._parser.parse(s, font_output, fontsize, dpi)</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 2975 font_output.set_canvas_size(box.width, box.height, box.depth)</div><div style="font-family:arial,sans-serif;font-size:13px"> 2976 result = font_output.get_results(box)</div>
<div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/mathtext.pyc in parse(self, s, fonts_object, fontsize, dpi)</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 2350 self._state_stack = [self.State(fonts_object, 'default', 'rm', fontsize, dpi)]</div><div style="font-family:arial,sans-serif;font-size:13px">
2351 try:</div><div style="font-family:arial,sans-serif;font-size:13px">-> 2352 self._expression.parseString(s)</div><div style="font-family:arial,sans-serif;font-size:13px"> 2353 except ParseException, err:</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 2354 raise ValueError("\n".join([</div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">
/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/pyparsing.pyc in parseString(self, instring, parseAll)</div><div style="font-family:arial,sans-serif;font-size:13px"> 1046 if not self.keepTabs:</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 1047 instring = instring.expandtabs()</div><div style="font-family:arial,sans-serif;font-size:13px">-> 1048 loc, tokens = self._parse( instring, 0 )</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 1049 if parseAll:</div><div style="font-family:arial,sans-serif;font-size:13px"> 1050 StringEnd()._parse( instring, loc )</div><div style="font-family:arial,sans-serif;font-size:13px">
<br></div><div style="font-family:arial,sans-serif;font-size:13px">/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/pyparsing.pyc in _parseCache(self, instring, loc, doActions, callPreParse)</div><div style="font-family:arial,sans-serif;font-size:13px">
979 else:</div><div style="font-family:arial,sans-serif;font-size:13px"> 980 try:</div><div style="font-family:arial,sans-serif;font-size:13px">--> 981 value = self._parseNoCache( instring, loc, doActions, callPreParse )</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 982 ParserElement._exprArgCache[ lookup ] = (value[0],value[1].copy())</div><div style="font-family:arial,sans-serif;font-size:13px"> 983 return value</div>
<div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/pyparsing.pyc in _parseNoCache(self, instring, loc, doActions, callPreParse)</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 922 if self.mayIndexError or loc >= len(instring):</div><div style="font-family:arial,sans-serif;font-size:13px"> 923 try:</div>
<div style="font-family:arial,sans-serif;font-size:13px">--> 924 loc,tokens = self.parseImpl( instring, preloc, doActions )</div><div style="font-family:arial,sans-serif;font-size:13px"> 925 except IndexError:</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 926 raise ParseException( instring, len(instring), self.errmsg, self )</div><div style="font-family:arial,sans-serif;font-size:13px"><br></div>
<div style="font-family:arial,sans-serif;font-size:13px">/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/pyparsing.pyc in parseImpl(self, instring, loc, doActions)</div><div style="font-family:arial,sans-serif;font-size:13px">
2557 def parseImpl( self, instring, loc, doActions=True ):</div><div style="font-family:arial,sans-serif;font-size:13px"> 2558 if self.expr is not None:</div><div style="font-family:arial,sans-serif;font-size:13px">
-> 2559 return self.expr._parse( instring, loc, doActions, callPreParse=False )</div><div style="font-family:arial,sans-serif;font-size:13px"> 2560 else:</div><div style="font-family:arial,sans-serif;font-size:13px">
2561 raise ParseException("",loc,self.errmsg,self)</div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/pyparsing.pyc in _parseCache(self, instring, loc, doActions, callPreParse)</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 979 else:</div><div style="font-family:arial,sans-serif;font-size:13px"> 980 try:</div><div style="font-family:arial,sans-serif;font-size:13px">
--> 981 value = self._parseNoCache( instring, loc, doActions, callPreParse )</div><div style="font-family:arial,sans-serif;font-size:13px"> 982 ParserElement._exprArgCache[ lookup ] = (value[0],value[1].copy())</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 983 return value</div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">
/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/pyparsing.pyc in _parseNoCache(self, instring, loc, doActions, callPreParse)</div><div style="font-family:arial,sans-serif;font-size:13px"> 922 if self.mayIndexError or loc >= len(instring):</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 923 try:</div><div style="font-family:arial,sans-serif;font-size:13px">--> 924 loc,tokens = self.parseImpl( instring, preloc, doActions )</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 925 except IndexError:</div><div style="font-family:arial,sans-serif;font-size:13px"> 926 raise ParseException( instring, len(instring), self.errmsg, self )</div>
<div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/pyparsing.pyc in parseImpl(self, instring, loc, doActions)</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 2305 raise ParseSyntaxException( ParseException(instring, len(instring), self.errmsg, self) )</div><div style="font-family:arial,sans-serif;font-size:13px">
2306 else:</div><div style="font-family:arial,sans-serif;font-size:13px">-> 2307 loc, exprtokens = e._parse( instring, loc, doActions )</div><div style="font-family:arial,sans-serif;font-size:13px">
2308 if exprtokens or exprtokens.keys():</div><div style="font-family:arial,sans-serif;font-size:13px"> 2309 resultlist += exprtokens</div><div style="font-family:arial,sans-serif;font-size:13px">
<br></div><div style="font-family:arial,sans-serif;font-size:13px">/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/pyparsing.pyc in _parseCache(self, instring, loc, doActions, callPreParse)</div><div style="font-family:arial,sans-serif;font-size:13px">
979 else:</div><div style="font-family:arial,sans-serif;font-size:13px"> 980 try:</div><div style="font-family:arial,sans-serif;font-size:13px">--> 981 value = self._parseNoCache( instring, loc, doActions, callPreParse )</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 982 ParserElement._exprArgCache[ lookup ] = (value[0],value[1].copy())</div><div style="font-family:arial,sans-serif;font-size:13px"> 983 return value</div>
<div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/pyparsing.pyc in _parseNoCache(self, instring, loc, doActions, callPreParse)</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 922 if self.mayIndexError or loc >= len(instring):</div><div style="font-family:arial,sans-serif;font-size:13px"> 923 try:</div>
<div style="font-family:arial,sans-serif;font-size:13px">--> 924 loc,tokens = self.parseImpl( instring, preloc, doActions )</div><div style="font-family:arial,sans-serif;font-size:13px"> 925 except IndexError:</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 926 raise ParseException( instring, len(instring), self.errmsg, self )</div><div style="font-family:arial,sans-serif;font-size:13px"><br></div>
<div style="font-family:arial,sans-serif;font-size:13px">/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/pyparsing.pyc in parseImpl(self, instring, loc, doActions)</div><div style="font-family:arial,sans-serif;font-size:13px">
2670 tokens = []</div><div style="font-family:arial,sans-serif;font-size:13px"> 2671 try:</div><div style="font-family:arial,sans-serif;font-size:13px">-> 2672 loc, tokens = self.expr._parse( instring, loc, doActions, callPreParse=False )</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 2673 hasIgnoreExprs = ( len(self.ignoreExprs) > 0 )</div><div style="font-family:arial,sans-serif;font-size:13px"> 2674 while 1:</div>
<div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/pyparsing.pyc in _parseCache(self, instring, loc, doActions, callPreParse)</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 979 else:</div><div style="font-family:arial,sans-serif;font-size:13px"> 980 try:</div><div style="font-family:arial,sans-serif;font-size:13px">
--> 981 value = self._parseNoCache( instring, loc, doActions, callPreParse )</div><div style="font-family:arial,sans-serif;font-size:13px"> 982 ParserElement._exprArgCache[ lookup ] = (value[0],value[1].copy())</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 983 return value</div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">
/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/pyparsing.pyc in _parseNoCache(self, instring, loc, doActions, callPreParse)</div><div style="font-family:arial,sans-serif;font-size:13px"> 922 if self.mayIndexError or loc >= len(instring):</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 923 try:</div><div style="font-family:arial,sans-serif;font-size:13px">--> 924 loc,tokens = self.parseImpl( instring, preloc, doActions )</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 925 except IndexError:</div><div style="font-family:arial,sans-serif;font-size:13px"> 926 raise ParseException( instring, len(instring), self.errmsg, self )</div>
<div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/pyparsing.pyc in parseImpl(self, instring, loc, doActions)</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 2305 raise ParseSyntaxException( ParseException(instring, len(instring), self.errmsg, self) )</div><div style="font-family:arial,sans-serif;font-size:13px">
2306 else:</div><div style="font-family:arial,sans-serif;font-size:13px">-> 2307 loc, exprtokens = e._parse( instring, loc, doActions )</div><div style="font-family:arial,sans-serif;font-size:13px">
2308 if exprtokens or exprtokens.keys():</div><div style="font-family:arial,sans-serif;font-size:13px"> 2309 resultlist += exprtokens</div><div style="font-family:arial,sans-serif;font-size:13px">
<br></div><div style="font-family:arial,sans-serif;font-size:13px">/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/pyparsing.pyc in _parseCache(self, instring, loc, doActions, callPreParse)</div><div style="font-family:arial,sans-serif;font-size:13px">
979 else:</div><div style="font-family:arial,sans-serif;font-size:13px"> 980 try:</div><div style="font-family:arial,sans-serif;font-size:13px">--> 981 value = self._parseNoCache( instring, loc, doActions, callPreParse )</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 982 ParserElement._exprArgCache[ lookup ] = (value[0],value[1].copy())</div><div style="font-family:arial,sans-serif;font-size:13px"> 983 return value</div>
<div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/pyparsing.pyc in _parseNoCache(self, instring, loc, doActions, callPreParse)</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 922 if self.mayIndexError or loc >= len(instring):</div><div style="font-family:arial,sans-serif;font-size:13px"> 923 try:</div>
<div style="font-family:arial,sans-serif;font-size:13px">--> 924 loc,tokens = self.parseImpl( instring, preloc, doActions )</div><div style="font-family:arial,sans-serif;font-size:13px"> 925 except IndexError:</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 926 raise ParseException( instring, len(instring), self.errmsg, self )</div><div style="font-family:arial,sans-serif;font-size:13px"><br></div>
<div style="font-family:arial,sans-serif;font-size:13px">/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/pyparsing.pyc in parseImpl(self, instring, loc, doActions)</div><div style="font-family:arial,sans-serif;font-size:13px">
2414 for e in self.exprs:</div><div style="font-family:arial,sans-serif;font-size:13px"> 2415 try:</div><div style="font-family:arial,sans-serif;font-size:13px">-> 2416 ret = e._parse( instring, loc, doActions )</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 2417 return ret</div><div style="font-family:arial,sans-serif;font-size:13px"> 2418 except ParseException, err:</div><div style="font-family:arial,sans-serif;font-size:13px">
<br></div><div style="font-family:arial,sans-serif;font-size:13px">/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/pyparsing.pyc in _parseCache(self, instring, loc, doActions, callPreParse)</div><div style="font-family:arial,sans-serif;font-size:13px">
979 else:</div><div style="font-family:arial,sans-serif;font-size:13px"> 980 try:</div><div style="font-family:arial,sans-serif;font-size:13px">--> 981 value = self._parseNoCache( instring, loc, doActions, callPreParse )</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 982 ParserElement._exprArgCache[ lookup ] = (value[0],value[1].copy())</div><div style="font-family:arial,sans-serif;font-size:13px"> 983 return value</div>
<div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/pyparsing.pyc in _parseNoCache(self, instring, loc, doActions, callPreParse)</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 948 else:</div><div style="font-family:arial,sans-serif;font-size:13px"> 949 for fn in self.parseAction:</div><div style="font-family:arial,sans-serif;font-size:13px">
--> 950 tokens = fn( instring, tokensStart, retTokens )</div><div style="font-family:arial,sans-serif;font-size:13px"> 951 if tokens is not None:</div><div style="font-family:arial,sans-serif;font-size:13px">
952 retTokens = ParseResults( tokens,</div><div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">/home/safarzadeh/yt-x86_64/lib/python2.7/site-packages/matplotlib/mathtext.pyc in raise_error(s, loc, toks)</div>
<div style="font-family:arial,sans-serif;font-size:13px"> 2047 """</div><div style="font-family:arial,sans-serif;font-size:13px"> 2048 def raise_error(s, loc, toks):</div><div style="font-family:arial,sans-serif;font-size:13px">
-> 2049 raise ParseFatalException(msg + "\n" + s)</div><div style="font-family:arial,sans-serif;font-size:13px"> 2050 </div><div style="font-family:arial,sans-serif;font-size:13px"> 2051 empty = Empty()</div>
<div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">ParseFatalException: Expected end of math '$'</div><div style="font-family:arial,sans-serif;font-size:13px">
$\rm{$\mathrm{Particle}\/\mathrm{Density}$}$ (at char 0), (line:1, col:1)</div></div>