New submission from Pierre Ossman <oss...@cendio.se>:
sudo breaks exception handling in Python in some subtle way. The following test
program works fine when run directly, but breaks when run through sudo:
#!/usr/bin/python
import time
def a():
try:
while True:
time.sleep(0.001)
except KeyboardInterrupt:
print "a"
def b():
try:
a()
except KeyboardInterrupt:
print "b"
b()
This is expected:
pierre@pangolin:~$ ./test.py
^Ca
But through sudo you get random behaviour:
pierre@pangolin:~$ sudo ./test.py
^Ca b
pierre@pangolin:~$ sudo ./test.py
^Ca b
pierre@pangolin:~$ sudo ./test.py
^Ca
b
pierre@pangolin:~$ sudo ./test.py
^Ca
pierre@pangolin:~$ sudo ./test.py
^Ca
pierre@pangolin:~$ sudo ./test.py
^Cb
Seen on Ubuntu 12.04 (alpha/beta) and on Fedora 16. Happens more often on
Ubuntu though.
----------
components: Interpreter Core
messages: 157358
nosy: ossman
priority: normal
severity: normal
status: open
title: sudo breaks python
versions: Python 2.7
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue14476>
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