From bfb9184ba80fc14a6d773e72fc591250f668ed3a Mon Sep 17 00:00:00 2001 From: Guido van Rossum Date: Thu, 22 Mar 2001 21:59:20 +0000 Subject: This is SF patch #405952, by Anthony Baxter: cmd.py uses raw_input(); eats SIGCLD: I discovered a rather nasty side effect of the standard cmd.py library today. If it's sitting inside raw_input(), any SIGCLDs that get sent to your application get silently eaten and ignored. I'm assuming that this is something that readline is thoughtfully doing for me. This patch adds an instance attr that allows the user to select to not use raw_input(), but instead use sys.stdin.readline() [Changed slightly to catch EOFError only for raw_input().] --- Lib/cmd.py | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-) diff --git a/Lib/cmd.py b/Lib/cmd.py index dcf601f..10c11a2 100644 --- a/Lib/cmd.py +++ b/Lib/cmd.py @@ -35,7 +35,7 @@ These interpreters use raw_input; thus, if the readline module is loaded, they automatically support Emacs-like command history and editing features. """ -import string +import string, sys __all__ = ["Cmd"] @@ -54,6 +54,7 @@ class Cmd: misc_header = "Miscellaneous help topics:" undoc_header = "Undocumented commands:" nohelp = "*** No help on %s" + use_rawinput = 1 def __init__(self): pass @@ -69,10 +70,18 @@ class Cmd: line = self.cmdqueue[0] del self.cmdqueue[0] else: - try: - line = raw_input(self.prompt) - except EOFError: - line = 'EOF' + if self.use_rawinput: + try: + line = raw_input(self.prompt) + except EOFError: + line = 'EOF' + else: + sys.stdout.write(self.prompt) + line = sys.stdin.readline() + if not len(line): + line = 'EOF' + else: + line = line[:-1] # chop \n line = self.precmd(line) stop = self.onecmd(line) stop = self.postcmd(stop, line) -- cgit v0.12