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-rw-r--r--Modules/_tkinter.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/Modules/_tkinter.c b/Modules/_tkinter.c
index ffb8ab08c9..f42f068bb3 100644
--- a/Modules/_tkinter.c
+++ b/Modules/_tkinter.c
@@ -990,8 +990,10 @@ AsObj(PyObject *value)
#if TCL_UTF_MAX == 3
if (ch >= 0x10000) {
/* Tcl doesn't do UTF-16, yet. */
- PyErr_SetString(PyExc_ValueError,
- "unsupported character");
+ PyErr_Format(PyExc_ValueError,
+ "character U+%x is above the range "
+ "(U+0000-U+FFFF) allowed by Tcl",
+ inbuf[i]);
ckfree(FREECAST outbuf);
return NULL;
#endif