2 files changed, 25 insertions, 11 deletions
diff --git a/src/consensus/Makefile.am b/src/consensus/Makefile.am
index c0205ee5d..c673e0407 100644
--- a/src/consensus/Makefile.am
+++ b/src/consensus/Makefile.am
@@ -27,6 +27,15 @@ libexec_PROGRAMS += \
  gnunet-service-evil-consensus
 endif
 
+do_subst = $(SED) -e 's,[@]PYTHON[@],$(PYTHON),g'
+
+SUFFIXES = .py.in .py
+
+.py.in.py:
+	$(do_subst) < $< > $@
+	chmod +x $@
+
+
 lib_LTLIBRARIES = \
   libgnunetconsensus.la
 
@@ -103,5 +112,12 @@ test_consensus_api_LDADD = \
   $(top_builddir)/src/testing/libgnunettesting.la \
   libgnunetconsensus.la
 
+noinst_SCRIPTS = \
+	consensus-simulation.py
+
+CLEANFILES = \
+	$(noinst_SCRIPTS)
+
 EXTRA_DIST = \
-  test_consensus.conf
+  test_consensus.conf \
+  consensus-simulation.py.in
diff --git a/src/consensus/consensus-simulation.py b/src/consensus/consensus-simulation.py.in
index 542fe0dac..71a91302e 100644
--- a/src/consensus/consensus-simulation.py
+++ b/src/consensus/consensus-simulation.py.in
@@ -1,6 +1,6 @@
-#!/usr/bin/python
+#!@PYTHON@
 # This file is part of GNUnet
-# (C) 2013 Christian Grothoff (and other contributing authors)
+# (C) 2013, 2018 Christian Grothoff (and other contributing authors)
 #
 # GNUnet is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published
@@ -41,7 +41,7 @@ def simulate(k, n, verbose):
   largest_arc = int(2**ceil(log(n, 2))) / 2
   num_ghosts = (2 * largest_arc) - n
   if verbose:
-    print "we have", num_ghosts, "ghost peers"
+    print("we have", num_ghosts, "ghost peers")
   # n.b. all peers with idx<k are evil
   peers = range(n)
   info = [1 << x for x in xrange(n)]
@@ -53,11 +53,11 @@ def simulate(k, n, verbose):
   rounds = 0
   while not done_p():
     if verbose:
-      print "-- round --"
+      print("-- round --")
     arc = 1
     while arc <= largest_arc:
       if verbose:
-        print "-- subround --"
+        prin( "-- subround --")
       new_info = [x for x in info]
       for peer_physical in xrange(n):
         peer_logical = peers[peer_physical]
@@ -66,7 +66,7 @@ def simulate(k, n, verbose):
         partner_physical = peers.index(partner_logical)
         if peer_physical < k or partner_physical < k:
           if verbose:
-            print "bad peer in connection", peer_physical, "--", partner_physical
+            print("bad peer in connection", peer_physical, "--", partner_physical)
           continue
         if peer_logical & arc == 0:
           # we are outgoing
@@ -84,7 +84,7 @@ def simulate(k, n, verbose):
         else:
           peer_type = "incoming"
         if verbose > 1:
-          print "type of", str(peer_physical) + ":", peer_type
+          print("type of", str(peer_physical) + ":", peer_type)
       info = new_info
       arc = arc << 1;
     rounds = rounds + 1
@@ -103,6 +103,4 @@ if __name__ == "__main__":
   sum = 0.0;
   for n in xrange (0, args.r):
     sum += simulate(args.k, args.n, args.verbose)
-  printsum / args.r;
-
-
+  print(sum / args.r)