diff options
Diffstat (limited to 'Python/ceval.c')
| -rw-r--r-- | Python/ceval.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/Python/ceval.c b/Python/ceval.c index 46da00b..ec24110 100644 --- a/Python/ceval.c +++ b/Python/ceval.c @@ -1511,6 +1511,8 @@ apply_subscript(v, w) return NULL; } i = getintvalue(w); + if (i < 0) + i += (*tp->tp_as_sequence->sq_length)(v); return (*tp->tp_as_sequence->sq_item)(v, i); } return (*tp->tp_as_mapping->mp_subscript)(v, w); @@ -1584,11 +1586,15 @@ assign_subscript(w, key, v) /* w[key] = v */ (func = sq->sq_ass_item) != NULL) { if (!is_intobject(key)) { err_setstr(TypeError, - "sequence subscript must be integer"); + "sequence subscript must be integer (assign or del)"); return -1; } - else - return (*func)(w, (int)getintvalue(key), v); + else { + int i = getintvalue(key); + if (i < 0) + i += (*sq->sq_length)(v); + return (*func)(w, i, v); + } } else if ((mp = tp->tp_as_mapping) != NULL && (func = mp->mp_ass_subscript) != NULL) { @@ -1726,8 +1732,6 @@ cmp_outcome(op, v, w) return v; } -/* XXX This function should use dict2 variants (change interface!) */ - static int import_from(locals, v, name) object *locals; @@ -1746,7 +1750,7 @@ import_from(locals, v, name) x = dict2lookup(w, name); if (x == NULL) { /* XXX can't happen? */ - err_setstr(NameError, getstringvalue(name)); + err_setstr(SystemError, getstringvalue(name)); return -1; } if (dict2insert(locals, name, x) != 0) @@ -1757,7 +1761,10 @@ import_from(locals, v, name) else { x = dict2lookup(w, name); if (x == NULL) { - err_setstr(NameError, getstringvalue(name)); + char buf[250]; + sprintf(buf, "cannot import name %s", + getstringvalue(name)); + err_setstr(ImportError, buf); return -1; } else |