--- a/pygments_lexer_pseudocode2/bases.py	Tue Apr 28 19:14:17 2026 +0200
+++ b/pygments_lexer_pseudocode2/bases.py	Tue Apr 28 19:29:28 2026 +0200
@@ -8,11 +8,16 @@
 __all__ = ["LexBase", "uni_name", "py_innerstring_rules", "py_name_rules"]
 
 
+import sys
+
 from pygments import unistring
 from pygments.lexer import RegexLexer, combined, bygroups, include
 from pygments.token import (Comment, Error, Name, Number, Other, String)
 
 
+PY2 = sys.version_info[0] <= 2
+
+
 #
 # SPDX-SnippetBegin
 # SPDX-License-Identifier: BSD-2-Clause
@@ -23,6 +28,14 @@
 uni_name = "[%s][%s]*" % (unistring.xid_start, unistring.xid_continue)
 
 
+"""PY3 allows no @staticmethod but PY2 needs it."""
+if PY2:
+    _staticmethod = staticmethod
+else:
+    def _staticmethod(fn):
+        return fn
+
+
 def py_innerstring_rules(ttype):
     return [
         # the old style '%s' % (...) string formatting (still valid in Py3)
@@ -73,6 +86,7 @@
         if False:
             yield match.start(), Other, ""
 
+    @_staticmethod
     def op_fixed(toktype, value):
         """Unconditionally yield a given token type and value."""