Added all_errors, list of all possible exceptions.
diff --git a/Lib/ftplib.py b/Lib/ftplib.py
index ed588b5..8423df6 100644
--- a/Lib/ftplib.py
+++ b/Lib/ftplib.py
@@ -36,13 +36,19 @@
FTP_PORT = 21
-# Exception raiseds when an error or invalid response is received
+# Exception raised when an error or invalid response is received
error_reply = 'ftplib.error_reply' # unexpected [123]xx reply
error_temp = 'ftplib.error_temp' # 4xx errors
error_perm = 'ftplib.error_perm' # 5xx errors
error_proto = 'ftplib.error_proto' # response does not begin with [1-5]
+# All exceptions (hopefully) that may be raised here and that aren't
+# (always) programming errors on our side
+all_errors = (error_reply, error_temp, error_perm, error_proto, \
+ socket.error, IOError)
+
+
# Line terminators (we always output CRLF, but accept any of CRLF, CR, LF)
CRLF = '\r\n'