@@ -52,10 +52,10 @@ def get_fontspec():
5252 latex_fontspec = []
5353 texcommand = get_texcommand ()
5454
55- if texcommand is not "pdflatex" :
55+ if texcommand != "pdflatex" :
5656 latex_fontspec .append ("\\ usepackage{fontspec}" )
5757
58- if texcommand is not "pdflatex" and rcParams .get ("pgf.rcfonts" , True ):
58+ if texcommand != "pdflatex" and rcParams .get ("pgf.rcfonts" , True ):
5959 # try to find fonts from rc parameters
6060 families = ["serif" , "sans-serif" , "monospace" ]
6161 fontspecs = [r"\setmainfont{%s}" , r"\setsansfont{%s}" ,
@@ -139,7 +139,7 @@ def _font_properties_str(prop):
139139 family = prop .get_family ()[0 ]
140140 if family in families :
141141 commands .append (families [family ])
142- elif family in system_fonts and get_texcommand () is not "pdflatex" :
142+ elif family in system_fonts and get_texcommand () != "pdflatex" :
143143 commands .append (r"\setmainfont{%s}\rmfamily" % family )
144144 else :
145145 pass # print warning?
@@ -173,7 +173,7 @@ def make_pdf_to_png_converter():
173173 pass
174174 # check for ghostscript
175175 try :
176- gs = "gs" if sys .platform is not "win32" else "gswin32c"
176+ gs = "gs" if sys .platform != "win32" else "gswin32c"
177177 check_output ([gs , "-v" ], stderr = subprocess .STDOUT )
178178 tools_available .append ("gs" )
179179 except :
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