Tests: Add lint-py checker

Makefile.in

@@ -394,7 +394,7 @@ FLAKE8_FLAGS = \
 	--ignore=E123,E129,E251,E402,E501,W503,W504,E701
 
 PYLINT = pylint
-PYLINT_FLAGS = --disable=R0801
+PYLINT_FLAGS = --score=n --disable=R0801
 
 lint-py:
 	-$(FLAKE8) $(FLAKE8_FLAGS) $(PY_PROGRAMS)

test_regress/t/t_dist_lint_py.pl

@@ -0,0 +1,34 @@
+#!/usr/bin/env perl
+if (!$::Driver) { use FindBin; exec("$FindBin::Bin/bootstrap.pl", @ARGV, $0); die; }
+# DESCRIPTION: Verilator: Verilog Test driver/expect definition
+#
+# Copyright 2022 by Wilson Snyder. This program is free software; you
+# can redistribute it and/or modify it under the terms of either the GNU
+# Lesser General Public License Version 3 or the Perl Artistic License
+# Version 2.0.
+# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
+
+scenarios(dist => 1);
+
+my $root = "..";
+
+if (!-r "$root/.git") {
+    skip("Not in a git repository");
+} else {
+    my $cmd = "cd $root && make lint-py";
+    my $out = `$cmd`;
+    my $first;
+    foreach my $line (split /\n+/, $out) {
+        next if $line =~ /^---/;
+        next if $line =~ /^flake8/;
+        next if $line =~ /^pylint/;
+        print "$line\n";
+        if (!defined $first) {
+            $first = $line;
+            error("lint-py failed: ", $first);
+        }
+    }
+}
+
+ok(1);
+1;