fix C compilation warning on Linux + Python 2

psutil/_psutil_linux.c: In function ‘psutil_proc_cpu_affinity_set’:
psutil/_psutil_linux.c:317:80: warning: unknown conversion type character ‘R’ in format [-Wformat=]
  317 |         return PyErr_Format(PyExc_TypeError, "sequence argument expected, got %R", Py_TYPE(py_cpu_set));
      |                                                                                ^
psutil/_psutil_linux.c:317:46: warning: too many arguments for format [-Wformat-extra-args]
  317 |         return PyErr_Format(PyExc_TypeError, "sequence argument expected, got %R", Py_TYPE(py_cpu_set));
      |                                              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
creating build/lib.linux-x86_64-2.7

1 files changed, 8 insertions, 1 deletions

diff --git a/psutil/_psutil_linux.c b/psutil/_psutil_linux.c
index f04fe776..924fe702 100644
--- a/psutil/_psutil_linux.c
+++ b/psutil/_psutil_linux.c
@@ -314,7 +314,14 @@ psutil_proc_cpu_affinity_set(PyObject *self, PyObject *args) {
         return NULL;
 
     if (!PySequence_Check(py_cpu_set)) {
-        return PyErr_Format(PyExc_TypeError, "sequence argument expected, got %R", Py_TYPE(py_cpu_set));
+        return PyErr_Format(
+            PyExc_TypeError,
+#if PY_MAJOR_VERSION >= 3
+            "sequence argument expected, got %R", Py_TYPE(py_cpu_set)
+#else
+            "sequence argument expected, got %s", Py_TYPE(py_cpu_set)->tp_name
+#endif
+        );
     }
 
     seq_len = PySequence_Size(py_cpu_set);