linux-kernel - [PATCH] checkpatch: explicitly require python3 for codespell

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Date:   Tue,  7 Dec 2021 22:13:16 +0100
From:   Alexander Lobakin <alexandr.lobakin@...el.com>
To:     Andy Whitcroft <apw@...onical.com>, Joe Perches <joe@...ches.com>
Cc:     Alexander Lobakin <alexandr.lobakin@...el.com>,
        Dwaipayan Ray <dwaipayanray1@...il.com>,
        Lukas Bulwahn <lukas.bulwahn@...il.com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH] checkpatch: explicitly require python3 for codespell

Fix a bug where checkpatch couldn't automatically find
dictionary.txt.
"Unversioned" `which python` might be not present in a system
with Python 3 and codespell installed and working. SPDX check
already refers to `which python3`, do the same for codespell.

Signed-off-by: Alexander Lobakin <alexandr.lobakin@...el.com>
---
 scripts/checkpatch.pl | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 1784921c645d..6943f1e507f1 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -334,7 +334,7 @@ if ($user_codespellfile) {
 } elsif (!(-f $codespellfile)) {
 	# If /usr/share/codespell/dictionary.txt is not present, try to find it
 	# under codespell's install directory: <codespell_root>/data/dictionary.txt
-	if (($codespell || $help) && which("codespell") ne "" && which("python") ne "") {
+	if (($codespell || $help) && which("codespell") ne "" && which("python3") ne "") {
 		my $python_codespell_dict = << "EOF";
 
 import os.path as op
@@ -344,7 +344,7 @@ codespell_file = op.join(codespell_dir, 'data', 'dictionary.txt')
 print(codespell_file, end='')
 EOF
 
-		my $codespell_dict = `python -c "$python_codespell_dict" 2> /dev/null`;
+		my $codespell_dict = `python3 -c "$python_codespell_dict" 2> /dev/null`;
 		$codespellfile = $codespell_dict if (-f $codespell_dict);
 	}
 }
-- 
2.33.1