diff --git a/configure.ac b/configure.ac

index 55289f6..990115b 100644

--- a/configure.ac

+++ b/configure.ac

@@ -41,35 +41,33 @@ AC_ARG_WITH([rst2man],

   AS_HELP_STRING([--with-rst2man=PATH], [Location of rst2man (auto)]),

   [RST2MAN="$withval"],

   AC_CHECK_PROGS(RST2MAN,

-    [rst2man-3.6 rst2man-3 rst2man rst2man.py],

+    [rst2man rst2man.py rst2man-3.6 rst2man-2.7],

     [no]))

 if test "x$RST2MAN" = "xno"; then

   AC_MSG_ERROR(

-    [rst2man is needed to build Varnish, please install python3-docutils.])

+    [rst2man is needed to build Varnish, please install python-docutils.])

 fi

 AC_ARG_WITH([sphinx-build],

   AS_HELP_STRING([--with-sphinx-build=PATH], [Location of sphinx-build (auto)]),

   [SPHINX="$withval"],

   AC_CHECK_PROGS(SPHINX,

-    [sphinx-build-3.6 sphinx-build-3 sphinx-build],

+    [sphinx-build sphinx-build-3.6 sphinx-build-2.7],

     [no]))

 if test "x$SPHINX" = "xno"; then

   AC_MSG_ERROR(

-    [sphinx-build is needed to build Varnish, please install python3-sphinx.])

+    [sphinx-build is needed to build Varnish, please install python-sphinx.])

 fi

 AC_ARG_WITH([rst2html],

-  AS_HELP_STRING([--with-rst2html=PATH], [Location of rst2html (auto)]),

-  [RST2HTML="$withval"],

-  AC_CHECK_PROGS(RST2HTML,

-     [rst2html-3.6 rst2html-3 rst2html rst2html.py],

-     "no"))

+               AS_HELP_STRING([--with-rst2html=PATH],

+                              [Location of rst2html (auto)]),

+               [RST2HTML="$withval"],

+               [AC_CHECK_PROGS(RST2HTML, [rst2html rst2html.py], "no")

+	        if test "x$RST2HTML" = "xno"; then

+		   AC_MSG_WARN([rst2html not found - not building changelog])

+		fi])

 AM_CONDITIONAL(HAVE_RST2HTML,[test "x$RST2HTML" != "xno"])

-if test "x$RST2HTML" = "xno"; then

-   AC_MSG_ERROR(

-     [rst2html not found - (Weird, we found rst2man?!)])

-fi

 AC_ARG_WITH([dot],

   AS_HELP_STRING([--with-dot=PATH],

diff --git a/doc/sphinx/vtc-syntax.py b/doc/sphinx/vtc-syntax.py

index 8b15ca7..6d4946d 100644

--- a/doc/sphinx/vtc-syntax.py

+++ b/doc/sphinx/vtc-syntax.py

@@ -29,6 +29,7 @@

 # Process various varnishtest C files and output reStructuredText to be

 # included in vtc(7).

+from __future__ import print_function

 import sys

 import re

@@ -38,7 +39,7 @@ def parse_file(fn, cl, tl, sl):

     section = ""

     resec = re.compile("[ /]\* SECTION: ")

-    f = open(fn, "r", encoding="UTF-8")

+    f = open(fn, "r")

     for l in f:

         if "*/" in l:

diff --git a/lib/libvcc/generate.py b/lib/libvcc/generate.py

index be3dd32..0118d79 100755

--- a/lib/libvcc/generate.py

+++ b/lib/libvcc/generate.py

@@ -30,6 +30,8 @@

 # Generate various .c and .h files for the VCL compiler and the interfaces

 # for it.

+from __future__ import print_function

+

 #######################################################################

 # These are our tokens

diff --git a/lib/libvcc/vmodtool.py b/lib/libvcc/vmodtool.py

index 35c19e9..14f93b1 100755

--- a/lib/libvcc/vmodtool.py

+++ b/lib/libvcc/vmodtool.py

@@ -33,6 +33,9 @@ Read the vmod.vcc file (inputvcc) and produce:

     vmod_${name}.rst -- Extracted documentation

 """

+# This script should work with both Python 2 and Python 3.

+from __future__ import print_function

+

 import os

 import sys

 import re

diff --git a/lib/libvcc/vsctool.py b/lib/libvcc/vsctool.py

index d95b66e..e65b007 100644

--- a/lib/libvcc/vsctool.py

+++ b/lib/libvcc/vsctool.py

@@ -35,6 +35,8 @@ the same general syntax as a `.rst` file, but for now we process

 it with this program to get a *real* `.rst` file.

 '''

+from __future__ import print_function

+

 import getopt

 import json

 import sys

diff --git a/varnish-legacy.m4 b/varnish-legacy.m4

index 9f67359..e5e2821 100644

--- a/varnish-legacy.m4

+++ b/varnish-legacy.m4

@@ -98,10 +98,9 @@ AC_SUBST([VMOD_DIR])

 AC_DEFUN([VARNISH_VMODTOOL],

 [

-AC_CHECK_PROGS(PYTHON, [python3.9 python3.8 python3.7 python3.6 python3.5 dnl

-  python3.4 python3 python, "no"])

+AC_CHECK_PROGS(PYTHON, [python3 python3.1 python3.2 python2.7 python2.6 python2.5 python2 python], "no")

 if test "x$PYTHON" = "xno"; then

-  AC_MSG_ERROR([Python >= 3.4 is needed to build, please install python.])

+  AC_MSG_ERROR([Python is needed to build, please install python.])

 fi

 VARNISH_PKG_GET_VAR([VMODTOOL], [vmodtool])

 AC_SUBST([VMODTOOL])

diff --git a/varnish.m4 b/varnish.m4

index 392c36c..71df96d 100644

--- a/varnish.m4

+++ b/varnish.m4

@@ -130,10 +130,10 @@ AC_DEFUN([_VARNISH_CHECK_DEVEL], [

 # ---------------------

 AC_DEFUN([_VARNISH_CHECK_PYTHON], [

 	m4_define_default([_AM_PYTHON_INTERPRETER_LIST],

-		[python3.9 python3.8 python3.7 python3.6 python3.5 dnl

-		python3.4 python3 python])

-	AM_PATH_PYTHON([3.4], [], [

-		AC_MSG_ERROR([Python >= 3.4 is required.])

+[python3.9 python3.8 python3.7 python3.6 python3.5 python3.4 python2.7 dnl

+python python2 python3])

+	AM_PATH_PYTHON([2.7], [], [

+		AC_MSG_ERROR([Python >= 2.7 is required.])

 	])

 ])