linux-kernel - [PATCH v3 06/15] scripts: test_doc_build.py: better adjust to python version

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Message-ID: <32cb41c543293bbbab5fcb15f8a0aefac040e3a9.1750571906.git.mchehab+huawei@kernel.org>
Date: Sun, 22 Jun 2025 08:02:35 +0200
From: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
To: Linux Doc Mailing List <linux-doc@...r.kernel.org>,
	Jonathan Corbet <corbet@....net>
Cc: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
	"Akira Yokosawa" <akiyks@...il.com>,
	"Mauro Carvalho Chehab" <mchehab+huawei@...nel.org>,
	linux-kernel@...r.kernel.org
Subject: [PATCH v3 06/15] scripts: test_doc_build.py: better adjust to python version

Very old versions of Sphinx require older versions of python.
The original script assumes that a python3.9 exec exists,
but this may not be the case.

Relax python requirements.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@...nel.org>
---
 scripts/test_doc_build.py | 23 ++++++++++++++++++-----
 1 file changed, 18 insertions(+), 5 deletions(-)

diff --git a/scripts/test_doc_build.py b/scripts/test_doc_build.py
index 5b9eb2c0bf01..129c2862065c 100755
--- a/scripts/test_doc_build.py
+++ b/scripts/test_doc_build.py
@@ -12,15 +12,28 @@ and optionally test the build.
 import argparse
 import asyncio
 import os.path
+import shutil
 import sys
 import time
 import subprocess
 
-# Minimal python version supported by the building system
-MINIMAL_PYTHON_VERSION = "python3.9"
+# Minimal python version supported by the building system.
 
-# Starting from 8.0.2, Python 3.9 becomes too old
-PYTHON_VER_CHANGES = {(8, 0, 2): "python3"}
+PYTHON = os.path.basename(sys.executable)
+
+min_python_bin = None
+
+for i in range(9, 13):
+    p = f"python3.{i}"
+    if shutil.which(p):
+        min_python_bin = p
+        break
+
+if not min_python_bin:
+    min_python_bin = PYTHON
+
+# Starting from 8.0, Python 3.9 is not supported anymore.
+PYTHON_VER_CHANGES = {(8, 0, 2): PYTHON}
 
 # Sphinx versions to be installed and their incremental requirements
 SPHINX_REQUIREMENTS = {
@@ -290,7 +303,7 @@ class SphinxVenv:
                 args.verbose = True
 
         cur_requirements = {}
-        python_bin = MINIMAL_PYTHON_VERSION
+        python_bin = min_python_bin
 
         for cur_ver, new_reqs in SPHINX_REQUIREMENTS.items():
             cur_requirements.update(new_reqs)
-- 
2.49.0