--- a/SConstruct	2023-06-16 22:40:32.223358545 +0300
+++ b/SConstruct	2023-06-16 22:45:42.583351356 +0300
@@ -20,6 +20,8 @@
 # ====================================================================
 #
 
+from __future__ import print_function
+
 import sys
 import os
 import re
@@ -163,9 +165,9 @@
               suffix='.def', src_suffix='.h')
   })
 
-match = re.search('SERF_MAJOR_VERSION ([0-9]+).*'
-                  'SERF_MINOR_VERSION ([0-9]+).*'
-                  'SERF_PATCH_VERSION ([0-9]+)',
+match = re.search(b'SERF_MAJOR_VERSION ([0-9]+).*'
+                  b'SERF_MINOR_VERSION ([0-9]+).*'
+                  b'SERF_PATCH_VERSION ([0-9]+)',
                   env.File('serf.h').get_contents(),
                   re.DOTALL)
 MAJOR, MINOR, PATCH = [int(x) for x in match.groups()]
@@ -183,7 +185,7 @@
 
 unknown = opts.UnknownVariables()
 if unknown:
-  print 'Warning: Used unknown variables:', ', '.join(unknown.keys())
+  print( 'Warning: Used unknown variables:', ', '.join(unknown.keys()))
 
 apr = str(env['APR'])
 apu = str(env['APU'])
--- a/build/check.py	2023-06-16 22:46:12.155350671 +0300
+++ b/build/check.py	2023-06-16 22:47:50.051348403 +0300
@@ -22,6 +22,8 @@
 # ===================================================================
 #
 
+from __future__ import print_function
+
 import sys
 import glob
 import subprocess
@@ -52,16 +54,16 @@
 
   # Find test responses and run them one by one
   for case in glob.glob(testdir + "/testcases/*.response"):
-    print "== Testing %s ==" % (case)
+    print( "== Testing %s ==" % (case))
     try:
       subprocess.check_call([SERF_RESPONSE_EXE, case])
     except subprocess.CalledProcessError:
-      print "ERROR: test case %s failed" % (case)
+      print( "ERROR: test case %s failed" % (case))
       sys.exit(1)
 
-  print "== Running the unit tests =="
+  print( "== Running the unit tests ==")
   try:
     subprocess.check_call(TEST_ALL_EXE)
   except subprocess.CalledProcessError:
-    print "ERROR: test(s) failed in test_all"
+    print( "ERROR: test(s) failed in test_all")
     sys.exit(1)
--- a/build/gen_def.py	2023-06-16 22:48:02.127348123 +0300
+++ b/build/gen_def.py	2023-06-16 22:50:38.447344503 +0300
@@ -52,12 +52,13 @@
 
 
 def extract_exports(fname):
-  content = open(fname).read()
   exports = [ ]
-  for name in _funcs.findall(content):
-    exports.append(name)
-  for name in _types.findall(content):
-    exports.append(name)
+  with open(fname) as fd:
+    content = fd.read()
+    for name in _funcs.findall(content):
+      exports.append(name)
+    for name in _types.findall(content):
+      exports.append(name)
   return exports
 
 # Blacklist the serf v2 API for now