--- a/setup.py	Thu Oct 24 15:49:33 2024 +0200
+++ b/setup.py	Thu Oct 24 00:47:20 2024 +0200
@@ -1,6 +1,7 @@
 # This is the mercurial setup script.
 
 import ctypes
+import logging
 import os
 import re
 import shutil
@@ -80,7 +81,6 @@
 from distutils.command.install import install
 from distutils.command.install_lib import install_lib
 from distutils.command.install_scripts import install_scripts
-from distutils import log
 from distutils.spawn import spawn
 from distutils import file_util
 from distutils.errors import (
@@ -496,7 +496,7 @@
             from distutils.spawn import find_executable
 
         if not find_executable('msgfmt'):
-            self.warn(
+            logging.warning(
                 "could not find msgfmt executable, no translations "
                 "will be built"
             )
@@ -504,7 +504,7 @@
 
         podir = 'i18n'
         if not os.path.isdir(podir):
-            self.warn("could not find %s/ directory" % podir)
+            logging.warning("could not find %s/ directory", podir)
             return False
 
         join = os.path.join
@@ -629,7 +629,7 @@
         # as Linux distributions would do)
         if self.distribution.rust and self.rust:
             if not sys.platform.startswith('linux'):
-                self.warn(
+                logging.warning(
                     "rust extensions have only been tested on Linux "
                     "and may not behave correctly on other platforms"
                 )
@@ -651,7 +651,7 @@
         except CCompilerError:
             if not getattr(ext, 'optional', False):
                 raise
-            log.warn(
+            logging.warning(
                 "Failed to build optional extension '%s' (skipping)", ext.name
             )
 
@@ -666,7 +666,7 @@
             self.run_command('build_hgexe')
             exebuilt = True
         except (DistutilsError, CCompilerError):
-            log.warn('failed to build optional hg.exe')
+            logging.warning('failed to build optional hg.exe')
 
         if exebuilt:
             # Copying hg.exe to the scripts build directory ensures it is
@@ -886,14 +886,14 @@
                     shutil.copy(python_x, dest)
 
         if not pythonlib:
-            log.warn(
+            logging.warning(
                 'could not determine Python DLL filename; assuming pythonXY'
             )
 
             hv = sys.hexversion
             pythonlib = b'python%d%d' % (hv >> 24, (hv >> 16) & 0xFF)
 
-        log.info('using %s as Python library name' % pythonlib)
+        logging.info('using %s as Python library name', pythonlib)
         with open('mercurial/hgpythonlib.h', 'wb') as f:
             f.write(b'/* this file is autogenerated by setup.py */\n')
             f.write(b'#define HGPYTHONLIB "%s"\n' % pythonlib)
@@ -920,9 +920,9 @@
         os.close(fdauto)
         with open(manfname, 'w', encoding="UTF-8") as f:
             f.write(self.LONG_PATHS_MANIFEST)
-        log.info("long paths manifest is written to '%s'" % manfname)
+        logging.info("long paths manifest is written to '%s'", manfname)
         outputresource = '-outputresource:%s;#1' % exefname
-        log.info("running mt.exe to update hg.exe's manifest in-place")
+        logging.info("running mt.exe to update hg.exe's manifest in-place")
 
         self.spawn(
             [
@@ -933,7 +933,7 @@
                 outputresource,
             ]
         )
-        log.info("done updating hg.exe's manifest")
+        logging.info("done updating hg.exe's manifest")
         os.remove(manfname)
 
     @property
@@ -973,13 +973,13 @@
             if b'\r\n' not in orig:
                 return
 
-            log.info('normalizing %s to LF line endings' % p)
+            logging.info('normalizing %s to LF line endings', p)
             with open(p, 'wb') as fh:
                 fh.write(orig.replace(b'\r\n', b'\n'))
 
         def gentxt(root):
             txt = 'doc/%s.txt' % root
-            log.info('generating %s' % txt)
+            logging.info('generating %s', txt)
             res, out, err = runcmd(
                 [sys.executable, 'gendoc.py', root], os.environ, cwd='doc'
             )
@@ -995,7 +995,7 @@
         def gengendoc(root):
             gendoc = 'doc/%s.gendoc.txt' % root
 
-            log.info('generating %s' % gendoc)
+            logging.info('generating %s', gendoc)
             res, out, err = runcmd(
                 [sys.executable, 'gendoc.py', '%s.gendoc' % root],
                 os.environ,
@@ -1011,7 +1011,7 @@
                 fh.write(out)
 
         def genman(root):
-            log.info('generating doc/%s' % root)
+            logging.info('generating doc/%s', root)
             res, out, err = runcmd(
                 [
                     sys.executable,
@@ -1036,7 +1036,7 @@
             normalizecrlf('doc/%s' % root)
 
         def genhtml(root):
-            log.info('generating doc/%s.html' % root)
+            logging.info('generating doc/%s.html', root)
             res, out, err = runcmd(
                 [
                     sys.executable,
@@ -1210,9 +1210,10 @@
             # install path. During wheel packaging, the shebang has a special
             # value.
             if data.startswith(b'#!python'):
-                log.info(
+                logging.info(
                     'not rewriting @LIBDIR@ in %s because install path '
-                    'not known' % outfile
+                    'not known',
+                    outfile,
                 )
                 continue