Use python3 in texmacs-sympy

sympy.spec

@@ -68,7 +68,8 @@ Python and does not require any external libraries.
 
 %package texmacs
 Summary:        TeXmacs integration for sympy
-Requires:       %{name} = %{version}-%{release}, TeXmacs
+Requires:       %{name} = %{version}-%{release}
+Requires:       texmacs
 
 %description texmacs
 This package contains a TeXmacs plugin for sympy.
@@ -76,6 +77,7 @@ This package contains a TeXmacs plugin for sympy.
 %package examples
 Summary:        Sympy examples
 Requires:       %{name} = %{version}-%{release}
+# once rich dependencies are allowed, add "or python3-sympy = %{version}-%{release}"
 
 %description examples
 This package contains example input for sympy.
@@ -161,7 +163,7 @@ rm -f %{buildroot}%{_bindir}/{,doc}test
 
 ## Install the TeXmacs integration
 pushd %{sympydir}
-sed 's/python/python2/' data/TeXmacs/bin/tm_sympy > \
+sed 's/python/python3/' data/TeXmacs/bin/tm_sympy > \
   %{buildroot}%{_bindir}/tm_sympy
 chmod a+x %{buildroot}%{_bindir}/tm_sympy
 touch -r data/TeXmacs/bin/tm_sympy %{buildroot}%{_bindir}/tm_sympy
@@ -173,7 +175,7 @@ chmod a-x %{buildroot}%{_datadir}/TeXmacs/plugins/sympy/progs/*.scm
 chmod a-x examples/all.py
 
 # Convert the README to HTML
-python2 %{_bindir}/rst2html --no-datestamp README.rst README.html
+rst2html --no-datestamp README.rst README.html
 
 # Install the HTML documentation
 mkdir -p %{buildroot}%{_docdir}/%{name}-doc
@@ -182,6 +184,9 @@ rm -f %{buildroot}%{_docdir}/%{name}-doc/html/.buildinfo
 rm -fr %{buildroot}%{_docdir}/%{name}-doc/i18n
 popd
 
+# Try to get rid of pyc files, which aren't useful for documentation
+find %{sympydir}/examples/ -name '*.py[co]' -print -delete
+
 %check
 let "dnum = $RANDOM % 90 + 10"
 # Split into many small chunks to reduce waiting in the end-game
@@ -234,6 +239,7 @@ popd
 %changelog
 * Fri Jan 13 2017 Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl> - 1.0-4
 - Run tests in parallel
+- Use python3 in texmacs-sympy (#1360766)
 
 * Thu Dec 22 2016 Miro Hrončok <mhroncok@redhat.com> - 1.0-4
 - Rebuild for Python 3.6