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+%% This is part of the OpTeX project, see http://petr.olsak.net/optex
+
+\_codedecl \_hisyntaxpython {Syntax highlighting for Python sources <2020-04-04>}
+
+\_newtoks \_hisyntaxpython \_newtoks \_hicolorspython
+
+\_global\_hicolorspython={% colors for Python language
+ \_hicolor M \Orange % Multi line strings
+ \_hicolor S {\_visiblesp \Grey} % Single line strings
+ \_hicolor C \Green % Comments
+ \_hicolor K \LightBlue % Keywords
+ \_hicolor O \Blue % Operators
+ \_hicolor N \Red % Numbers
+ \_hicolor D \Magenta % def names
+ \_hicolor L \Black % class names
+ \_hicolor R \Magenta % Decorators
+}
+\_global\_hisyntaxpython={%
+ \_the\_hicolorspython
+ \_let\s=\_relax \_let\c=\_relax \_let\e=\_relax \_let\o=\_relax
+ \_replthis{\_string\"}{{\_string\"}} % protect \", \'
+ \_replthis{\_string\'}{{\_string\'}}
+ %
+ \_replfromto{\_string#}{^^J}{\z C{\##1}^^J} % comments
+ %
+ \_replthis{'''}{\_noexpand\_hipystr0{'''}M} % search string marks
+ \_replthis{"""}{\_noexpand\_hipystr1{"""}M}
+ \_replthis{"}{\_noexpand\_hipystr2{"}S}
+ \_replthis{'}{\_noexpand\_hipystr3{'}S}
+ \_edef\_tmpb{\_tmpb} % realize string marks
+ %
+ \_foreach {br}{Br}{bR}{BR}{rb}{rB}{Rb}{RB}uUrRbB % string prefixes
+ \_do {\_replthis{#1\s}{\_noexpand\_hipystrpre#1}}
+ \_def\s{}
+ \_edef\_tmpb{\_tmpb}
+ %
+ \_edef \_tmpa {+-*./=<>()[]:,;!|\_pcent % operators
+ \_string{\_string}@\_string&\_string~\_string^}
+ \_ea\_foreach \_tmpa
+ \_do {\_replthis{#1}{\n\o#1\n}}
+ %
+ \_foreach % keywords
+ {and}{as}{assert}{async}{await}{break}{continue}{del}{elif}{else}{except}%
+ {exec}{False}{finally}{for}{from}{global}{if}{import}{in}{is}{lambda}{None}%
+ {nonlocal}{not}{or}{pass}{print}{raise}{return}{True}{try}{while}{with}{yield}%
+ \_do {\_replthis{\n#1\n}{\z K{#1}}}
+ \_replfromto{\n def\n}{\n\o(\n}{\z K{def}\x D{#1}\n\o(\n}
+ \_replfromto{\n class\n}{\n\o(\n}{\z K{class}\x L{#1}\n\o(\n}
+ %
+ \_foreach 0123456789 % numbers
+ \_do {\_replfromto{\n#1}{\n}{\c#1##1\e}}
+ %
+ \_replthis{\e\o.\c}{.}
+ \_replthis{\e\o.\n}{.\e}
+ \_replthis{\n\o.\c}{\c.}
+ \_replthis{e\e\o+\c}{e+}\_replthis{e\e\o-\c}{e-}
+ \_replthis{E\e\o+\c}{E+}\_replthis{E\e\o-\c}{E-}
+ \_replthis{\e j}{j\e}
+ %
+ \_replfromto{\n\o@\n}{^^J}{\z R{#1}^^J} % decorators
+ %
+ \_def\o#1{\z O{#1}}
+ \_def\c#1\e{\z N{#1}}
+}
+
+\_gdef\_hipystr#1#2#3#4\_hipystr#5#6#7{%
+ \_ifx#1#5\s\x#3{#2#4#2}%
+ \_else \_afterfi{\_hipystr#1{#2}#3#4#6}\_fi
+}
+\_gdef\_hipystrpre#1\x#2{\x#2{#1}\x#2}
+
+\_ifx\LightBlue\_undefined \_gdef\LightBlue {\_setcmykcolor{1 0.43 0 0}}\_fi
+\_ifx\Orange\_undefined \_gdef\Orange {\_setcmykcolor{0 0.64 1 0}}\_fi
+
+\_endcode %------------------------------------------------
+
+This code was greatly inspired by the OPMac hisyntax macros for Python:
+
+ https://gitlab.fit.cvut.cz/krajnpet/PySyntax
+
+created by Petr Krajnik.
+