diff options
| -rw-r--r-- | Lib/socket.py | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/Lib/socket.py b/Lib/socket.py index a7cba9a..7dc8ef0 100644 --- a/Lib/socket.py +++ b/Lib/socket.py @@ -209,9 +209,8 @@ class socket(_socket.socket): except the only mode characters supported are 'r', 'w' and 'b'. The semantics are similar too. (XXX refactor to share code?) """ - for c in mode: - if c not in {"r", "w", "b"}: - raise ValueError("invalid mode %r (only r, w, b allowed)") + if not set(mode) <= {"r", "w", "b"}: + raise ValueError("invalid mode %r (only r, w, b allowed)" % (mode,)) writing = "w" in mode reading = "r" in mode or not writing assert reading or writing |