diff -ur blitz-1.0.1/blitz/generate/genstencils.py blitz-1.0.1.py2/blitz/generate/genstencils.py

--- blitz-1.0.1/blitz/generate/genstencils.py	2017-10-02 18:04:43.000000000 +0200

+++ blitz-1.0.1.py2/blitz/generate/genstencils.py	2019-07-16 14:06:42.460447316 +0200

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

-#!/bin/env python

+#!/usr/bin/python2

 # Generates stencil code. This replaces the macros in stencil-et.h,

 # which make it impossible to debug the generated code.

diff -ur blitz-1.0.1/blitz/generate/Makefile.am blitz-1.0.1.py2/blitz/generate/Makefile.am

--- blitz-1.0.1/blitz/generate/Makefile.am	2017-10-02 18:04:43.000000000 +0200

+++ blitz-1.0.1.py2/blitz/generate/Makefile.am	2019-07-16 14:05:50.761644402 +0200

@@ -9,7 +9,7 @@

 EXTRA_PROGRAMS = 

 $(top_srcdir)/blitz/array/stencil-classes.cc: genstencils.py

-	python $< $@

+	python2 $< $@

 generate-headers: $(top_srcdir)/blitz/array/stencil-classes.cc

diff -ur blitz-1.0.1/blitz/generate/Makefile.in blitz-1.0.1.py2/blitz/generate/Makefile.in

--- blitz-1.0.1/blitz/generate/Makefile.in	2017-10-02 18:04:43.000000000 +0200

+++ blitz-1.0.1.py2/blitz/generate/Makefile.in	2019-07-16 14:06:10.073944335 +0200

@@ -619,7 +619,7 @@

 $(top_srcdir)/blitz/array/stencil-classes.cc: genstencils.py

-	python $< $@

+	python2 $< $@

 generate-headers: $(top_srcdir)/blitz/array/stencil-classes.cc

diff -ur blitz-1.0.1/blitz/generate/makeloops.py blitz-1.0.1.py2/blitz/generate/makeloops.py

--- blitz-1.0.1/blitz/generate/makeloops.py	2017-10-02 18:04:43.000000000 +0200

+++ blitz-1.0.1.py2/blitz/generate/makeloops.py	2019-07-16 14:06:25.665186477 +0200

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

-#!/usr/bin/env python

+#!/usr/bin/python2

 # python version of the makeloops.cpp that generates the benchmark

 # loops.