Fixed problems in the last commit. Filenames and line numbers weren't reported correctly.

Backquotes still don't report the correct file. The AST nodes only contain the line number but not the file name.

Parser/tokenizer.c

@@ -983,15 +983,7 @@ PyToken_TwoChars(int c1, int c2)
 		break;
 	case '<':
 		switch (c2) {
-		case '>':
-			{
-#ifndef PGEN
-				if (Py_Py3kWarningFlag)
-					PyErr_WarnEx(PyExc_DeprecationWarning,
-						"<> not supported in 3.x", 1);
-#endif
-				return NOTEQUAL;
-			}
+		case '>':	return NOTEQUAL;
 		case '=':	return LESSEQUAL;
 		case '<':	return LEFTSHIFT;
 		}
@@ -1485,6 +1477,16 @@ tok_get(register struct tok_state *tok, char **p_start, char **p_end)
 	{
 		int c2 = tok_nextc(tok);
 		int token = PyToken_TwoChars(c, c2);
+#ifndef PGEN
+		if (token == NOTEQUAL && c == '<') {
+			if (PyErr_WarnExplicit(PyExc_DeprecationWarning,
+					       "<> not supported in 3.x",
+					       tok->filename, tok->lineno,
+					       NULL, NULL)) {
+				return ERRORTOKEN;
+			}
+		}
+#endif
 		if (token != OP) {
 			int c3 = tok_nextc(tok);
 			int token3 = PyToken_ThreeChars(c, c2, c3);

Python/ast.c

@@ -1336,10 +1336,14 @@ ast_for_atom(struct compiling *c, const node *n)
         return Dict(keys, values, LINENO(n), n->n_col_offset, c->c_arena);
     }
     case BACKQUOTE: { /* repr */
-        if (Py_Py3kWarningFlag &&
-            PyErr_Warn(PyExc_DeprecationWarning,
-                "backquote not supported in 3.x") < 0)
-            return NULL;
+        if (Py_Py3kWarningFlag) {
+		if (PyErr_WarnExplicit(PyExc_DeprecationWarning,
+				       "backquote not supported in 3.x",
+				       "<unknown>", LINENO(n),
+				       NULL, NULL)) {
+			; //return NULL;
+		}
+	}
         expr_ty expression = ast_for_testlist(c, CHILD(n, 1));
         if (!expression)
             return NULL;