TTLibError:specifyafontnumberbetween0and5 (inclusive)

...~/miniconda3/lib/python3.8/site-packages/matplotlib/backends/backend_pdf.pyinembedTTF(self,filename,characters)1424returnembedTTFType3(font,characters,descriptor)1425eliffonttype==42:->1426returnembedTTFType42(font,characters,descriptor)14271428defalphaState(self,alpha):...

importmatplotlib.pyplotaspltplt.plot((1,2,3))plt.title('Axes Title',font='Helvetica')plt.savefig('text.pdf')

---------------------------------------------------------------------------TTLibErrorTraceback (mostrecentcalllast)/var/folders/bj/czjbfh496258q1lc3p01lyz00000gn/T/ipykernel_58793/3096390865.pyin<module>2plt.plot((1,2,3))3plt.title('Axes Title',font='Helvetica')---->4plt.savefig('text.pdf')~/miniconda3/lib/python3.8/site-packages/matplotlib/pyplot.pyinsavefig(*args,**kwargs)956defsavefig(*args,**kwargs):957fig=gcf()-->958res=fig.savefig(*args,**kwargs)959fig.canvas.draw_idle()# need this if 'transparent=True' to reset colors960returnres~/miniconda3/lib/python3.8/site-packages/matplotlib/figure.pyinsavefig(self,fname,transparent,**kwargs)3010ax.patch._cm_set(facecolor='none',edgecolor='none'))3011->3012self.canvas.print_figure(fname,**kwargs)30133014defginput(self,n=1,timeout=30,show_clicks=True,~/miniconda3/lib/python3.8/site-packages/matplotlib/backend_bases.pyinprint_figure(self,filename,dpi,facecolor,edgecolor,orientation,format,bbox_inches,pad_inches,bbox_extra_artists,backend,**kwargs)2312# force the figure dpi to 72), so we need to set it again here.2313withcbook._setattr_cm(self.figure,dpi=dpi):->2314result=print_method(2315filename,2316facecolor=facecolor,~/miniconda3/lib/python3.8/site-packages/matplotlib/backend_bases.pyinwrapper(*args,**kwargs)1641kwargs.pop(arg)1642->1643returnfunc(*args,**kwargs)16441645returnwrapper~/miniconda3/lib/python3.8/site-packages/matplotlib/_api/deprecation.pyinwrapper(*inner_args,**inner_kwargs)384# Early return in the simple, non-deprecated case (much faster than385# calling bind()).-->386returnfunc(*inner_args,**inner_kwargs)387arguments=signature.bind(*inner_args,**inner_kwargs).arguments388ifis_varargsandarguments.get(name):~/miniconda3/lib/python3.8/site-packages/matplotlib/backends/backend_pdf.pyinprint_pdf(self,filename,dpi,bbox_inches_restore,metadata)2786renderer.finalize()2787ifnotisinstance(filename,PdfPages):->2788file.finalize()2789finally:2790ifisinstance(filename,PdfPages):# finish off this page~/miniconda3/lib/python3.8/site-packages/matplotlib/backends/backend_pdf.pyinfinalize(self)792self.endStream()793self._write_annotations()-->794self.writeFonts()795self.writeExtGSTates()796self._write_soft_mask_groups()~/miniconda3/lib/python3.8/site-packages/matplotlib/backends/backend_pdf.pyinwriteFonts(self)925chars=self._character_tracker.used.get(filename)926ifchars:-->927fonts[Fx]=self.embedTTF(filename,chars)928self.writeObject(self.fontObject,fonts)929~/miniconda3/lib/python3.8/site-packages/matplotlib/backends/backend_pdf.pyinembedTTF(self,filename,characters)1424returnembedTTFType3(font,characters,descriptor)1425eliffonttype==42:->1426returnembedTTFType42(font,characters,descriptor)14271428defalphaState(self,alpha):~/miniconda3/lib/python3.8/site-packages/matplotlib/backends/backend_pdf.pyinembedTTFType42(font,characters,descriptor)1230subset_str="".join(chr(c)forcincharacters)1231_log.debug("SUBSET %s characters: %s",filename,subset_str)->1232fontdata=_backend_pdf_ps.get_glyphs_subset(filename,subset_str)1233_log.debug(1234"SUBSET %s %d -> %d",filename,~/miniconda3/lib/python3.8/site-packages/matplotlib/backends/_backend_pdf_ps.pyinget_glyphs_subset(fontfile,characters)40options.drop_tables+= ['FFTM','PfEd']41--->42withsubset.load_font(fontfile,options)asfont:43subsetter=subset.Subsetter(options=options)44subsetter.populate(text=characters)~/miniconda3/lib/python3.8/site-packages/fontTools/misc/loggingTools.pyinwrapper(*args,**kwds)370defwrapper(*args,**kwds):371withself:-->372returnfunc(*args,**kwds)373returnwrapper374else:~/miniconda3/lib/python3.8/site-packages/fontTools/subset/__init__.pyinload_font(fontFile,options,checkChecksums,dontLoadGlyphNames,lazy)3006lazy=True):3007->3008font=ttLib.TTFont(fontFile,3009checkChecksums=checkChecksums,3010recalcBBoxes=options.recalc_bounds,~/miniconda3/lib/python3.8/site-packages/fontTools/ttLib/ttFont.pyin__init__(self,file,res_name_or_index,sfntVersion,flavor,checkChecksums,verbose,recalcBBoxes,allowVID,ignoreDecompileErrors,recalcTimestamp,fontNumber,lazy,quiet,_tableCache)141file=tmp142self._tableCache=_tableCache-->143self.reader=SFNTReader(file,checkChecksums,fontNumber=fontNumber)144self.sfntVersion=self.reader.sfntVersion145self.flavor=self.reader.flavor~/miniconda3/lib/python3.8/site-packages/fontTools/ttLib/sfnt.pyin__init__(self,file,checkChecksums,fontNumber)58numFonts=header.numFonts59ifnot0<=fontNumber<numFonts:--->60raiseTTLibError("specify a font number between 0 and %d (inclusive)"% (numFonts-1))61self.numFonts=numFonts62self.file.seek(header.offsetTable[fontNumber])TTLibError:specifyafontnumberbetween0and5 (inclusive)