[Backport r50680 | neal.norwitz]

Handle a NULL name properly.

diff --git a/Objects/fileobject.c b/Objects/fileobject.c
index 16499eec9f0bd408814c335887bee7edda9d8bea..4f5720cde195a7df2830ee1ca060203f6f0cdc54 100644 (file)
--- a/Objects/fileobject.c
+++ b/Objects/fileobject.c
@@ -328,11 +328,11 @@ file_repr(PyFileObject *f)
        if (PyUnicode_Check(f->f_name)) {
 #ifdef Py_USING_UNICODE
                PyObject *ret = NULL;
-               PyObject *name;
-               name = PyUnicode_AsUnicodeEscapeString(f->f_name);
+               PyObject *name = PyUnicode_AsUnicodeEscapeString(f->f_name);
+               const char *name_str = name ? PyString_AsString(name) : "?";
                ret = PyString_FromFormat("<%s file u'%s', mode '%s' at %p>",
                                   f->f_fp == NULL ? "closed" : "open",
-                                  PyString_AsString(name),
+                                  name_str,
                                   PyString_AsString(f->f_mode),
                                   f);
                Py_XDECREF(name);