diff -urNp old/filters/latex/latex2img.py new/filters/latex/latex2img.py

--- old/filters/latex/latex2img.py	2018-06-05 15:27:44.153533130 +0200

+++ new/filters/latex/latex2img.py	2018-06-05 15:28:43.542828463 +0200

@@ -1,4 +1,4 @@

-#!/usr/bin/env python2

+#!/usr/bin/env python3

 '''

 NAME

     latex2img - Converts LaTeX source to PNG or SVG file

diff -urNp old/filters/music/music2png.py new/filters/music/music2png.py

--- old/filters/music/music2png.py	2018-06-05 15:27:44.153533130 +0200

+++ new/filters/music/music2png.py	2018-06-05 15:28:56.502882780 +0200

@@ -1,4 +1,4 @@

-#!/usr/bin/env python2

+#!/usr/bin/env python3

 '''

 NAME

     music2png - Converts textual music notation to classically notated PNG file

diff -urNp old/filters/unwraplatex.py new/filters/unwraplatex.py

--- old/filters/unwraplatex.py	2018-06-05 15:27:44.152533125 +0200

+++ new/filters/unwraplatex.py	2018-06-05 15:28:29.956767744 +0200

@@ -1,4 +1,4 @@

-#!/usr/bin/env python2

+#!/usr/bin/env python3

 '''

 NAME

     unwraplatex - Removes delimiters from LaTeX source text

diff -urNp old/Makefile.in new/Makefile.in

--- old/Makefile.in	2018-06-05 15:27:44.144533079 +0200

+++ new/Makefile.in	2018-06-05 15:27:56.328600132 +0200

@@ -107,7 +107,7 @@ $(DATATARGETS): % : %dir

 	$(INSTALL_DATA) $($@) $(DESTDIR)/$($<)/

 $(manp): %.1 : %.1.txt

-	python2 a2x.py -f manpage $<

+	python3 a2x.py -f manpage $<

 docs:

 	$(INSTALL) -d $(DESTDIR)/$(docdir)