Linux ip-148-66-134-25.ip.secureserver.net 3.10.0-1160.119.1.el7.tuxcare.els11.x86_64 #1 SMP Sun Nov 3 09:06:59 UTC 2024 x86_64
Apache
: 148.66.134.25 | : 3.16.137.229
66 Domain
8.0.30
amvm
www.github.com/MadExploits
Terminal
AUTO ROOT
Adminer
Backdoor Destroyer
Linux Exploit
Lock Shell
Lock File
Create User
CREATE RDP
PHP Mailer
BACKCONNECT
UNLOCK SHELL
HASH IDENTIFIER
CPANEL RESET
BLACK DEFEND!
README
+ Create Folder
+ Create File
/
usr /
share /
doc /
python-docs-2.7.5 /
html /
library /
[ HOME SHELL ]
Name
Size
Permission
Action
2to3.html
49.27
KB
-rw-r--r--
__builtin__.html
10.26
KB
-rw-r--r--
__future__.html
13.79
KB
-rw-r--r--
__main__.html
7.05
KB
-rw-r--r--
_winreg.html
59.21
KB
-rw-r--r--
abc.html
23.9
KB
-rw-r--r--
aepack.html
13.16
KB
-rw-r--r--
aetools.html
14.91
KB
-rw-r--r--
aetypes.html
18.88
KB
-rw-r--r--
aifc.html
22.4
KB
-rw-r--r--
al.html
17.34
KB
-rw-r--r--
allos.html
33.72
KB
-rw-r--r--
anydbm.html
16.33
KB
-rw-r--r--
archiving.html
9.26
KB
-rw-r--r--
argparse.html
237.62
KB
-rw-r--r--
array.html
29.29
KB
-rw-r--r--
ast.html
34.98
KB
-rw-r--r--
asynchat.html
31.43
KB
-rw-r--r--
asyncore.html
36.51
KB
-rw-r--r--
atexit.html
16.8
KB
-rw-r--r--
audioop.html
31.36
KB
-rw-r--r--
autogil.html
8.19
KB
-rw-r--r--
base64.html
19.67
KB
-rw-r--r--
basehttpserver.html
34.04
KB
-rw-r--r--
bastion.html
11.04
KB
-rw-r--r--
bdb.html
36.68
KB
-rw-r--r--
binascii.html
20.67
KB
-rw-r--r--
binhex.html
10.58
KB
-rw-r--r--
bisect.html
23.24
KB
-rw-r--r--
bsddb.html
26.43
KB
-rw-r--r--
bz2.html
26.08
KB
-rw-r--r--
calendar.html
37.79
KB
-rw-r--r--
carbon.html
48.94
KB
-rw-r--r--
cd.html
27.96
KB
-rw-r--r--
cgi.html
49.92
KB
-rw-r--r--
cgihttpserver.html
13.1
KB
-rw-r--r--
cgitb.html
11.41
KB
-rw-r--r--
chunk.html
14.66
KB
-rw-r--r--
cmath.html
25.63
KB
-rw-r--r--
cmd.html
26.09
KB
-rw-r--r--
code.html
24.58
KB
-rw-r--r--
codecs.html
100.64
KB
-rw-r--r--
codeop.html
14.84
KB
-rw-r--r--
collections.html
133.96
KB
-rw-r--r--
colorpicker.html
7.52
KB
-rw-r--r--
colorsys.html
11.04
KB
-rw-r--r--
commands.html
14.36
KB
-rw-r--r--
compileall.html
16.83
KB
-rw-r--r--
compiler.html
67.75
KB
-rw-r--r--
configparser.html
62.13
KB
-rw-r--r--
constants.html
12.83
KB
-rw-r--r--
contextlib.html
19.39
KB
-rw-r--r--
cookie.html
39.07
KB
-rw-r--r--
cookielib.html
83.82
KB
-rw-r--r--
copy.html
12.19
KB
-rw-r--r--
copy_reg.html
13.76
KB
-rw-r--r--
crypt.html
10.04
KB
-rw-r--r--
crypto.html
7.59
KB
-rw-r--r--
csv.html
67.37
KB
-rw-r--r--
ctypes.html
238.78
KB
-rw-r--r--
curses.ascii.html
22.29
KB
-rw-r--r--
curses.html
146.63
KB
-rw-r--r--
curses.panel.html
14.39
KB
-rw-r--r--
custominterp.html
7.62
KB
-rw-r--r--
datatypes.html
16.84
KB
-rw-r--r--
datetime.html
226.59
KB
-rw-r--r--
dbhash.html
15.48
KB
-rw-r--r--
dbm.html
12.07
KB
-rw-r--r--
debug.html
10.15
KB
-rw-r--r--
decimal.html
194.44
KB
-rw-r--r--
development.html
14.17
KB
-rw-r--r--
difflib.html
84.83
KB
-rw-r--r--
dircache.html
11.41
KB
-rw-r--r--
dis.html
69.95
KB
-rw-r--r--
distutils.html
8.05
KB
-rw-r--r--
dl.html
16.33
KB
-rw-r--r--
doctest.html
165.54
KB
-rw-r--r--
docxmlrpcserver.html
16.43
KB
-rw-r--r--
dumbdbm.html
14.02
KB
-rw-r--r--
dummy_thread.html
9.43
KB
-rw-r--r--
dummy_threading.html
8.37
KB
-rw-r--r--
easydialogs.html
30.55
KB
-rw-r--r--
email-examples.html
45.65
KB
-rw-r--r--
email.charset.html
26.8
KB
-rw-r--r--
email.encoders.html
11.86
KB
-rw-r--r--
email.errors.html
15.77
KB
-rw-r--r--
email.generator.html
20.77
KB
-rw-r--r--
email.header.html
26.92
KB
-rw-r--r--
email.html
44.24
KB
-rw-r--r--
email.iterators.html
11.52
KB
-rw-r--r--
email.message.html
63.16
KB
-rw-r--r--
email.mime.html
27.93
KB
-rw-r--r--
email.parser.html
30.45
KB
-rw-r--r--
email.util.html
24.46
KB
-rw-r--r--
errno.html
37.99
KB
-rw-r--r--
exceptions.html
56.13
KB
-rw-r--r--
fcntl.html
22.67
KB
-rw-r--r--
filecmp.html
22.3
KB
-rw-r--r--
fileformats.html
9.14
KB
-rw-r--r--
fileinput.html
24.28
KB
-rw-r--r--
filesys.html
10.2
KB
-rw-r--r--
fl.html
49.92
KB
-rw-r--r--
fm.html
11.91
KB
-rw-r--r--
fnmatch.html
14.58
KB
-rw-r--r--
formatter.html
34.06
KB
-rw-r--r--
fpectl.html
16.01
KB
-rw-r--r--
fpformat.html
10.59
KB
-rw-r--r--
fractions.html
22.61
KB
-rw-r--r--
framework.html
33.34
KB
-rw-r--r--
frameworks.html
7.14
KB
-rw-r--r--
ftplib.html
43.99
KB
-rw-r--r--
functions.html
183.14
KB
-rw-r--r--
functools.html
27.17
KB
-rw-r--r--
future_builtins.html
13.04
KB
-rw-r--r--
gc.html
25.75
KB
-rw-r--r--
gdbm.html
15.96
KB
-rw-r--r--
gensuitemodule.html
11.51
KB
-rw-r--r--
getopt.html
23.66
KB
-rw-r--r--
getpass.html
10.65
KB
-rw-r--r--
gettext.html
78.76
KB
-rw-r--r--
gl.html
22.09
KB
-rw-r--r--
glob.html
13.26
KB
-rw-r--r--
grp.html
10.49
KB
-rw-r--r--
gzip.html
18.99
KB
-rw-r--r--
hashlib.html
18.2
KB
-rw-r--r--
heapq.html
31.61
KB
-rw-r--r--
hmac.html
10.46
KB
-rw-r--r--
hotshot.html
18.65
KB
-rw-r--r--
htmllib.html
25.32
KB
-rw-r--r--
htmlparser.html
39.11
KB
-rw-r--r--
httplib.html
62.95
KB
-rw-r--r--
i18n.html
9.52
KB
-rw-r--r--
ic.html
17.17
KB
-rw-r--r--
idle.html
20.9
KB
-rw-r--r--
imageop.html
14.76
KB
-rw-r--r--
imaplib.html
51.99
KB
-rw-r--r--
imgfile.html
11.71
KB
-rw-r--r--
imghdr.html
11.3
KB
-rw-r--r--
imp.html
34.34
KB
-rw-r--r--
importlib.html
8.26
KB
-rw-r--r--
imputil.html
31.81
KB
-rw-r--r--
index.html
72.78
KB
-rw-r--r--
inspect.html
50.71
KB
-rw-r--r--
internet.html
24.87
KB
-rw-r--r--
intro.html
8.93
KB
-rw-r--r--
io.html
98.13
KB
-rw-r--r--
ipc.html
13.41
KB
-rw-r--r--
itertools.html
115.91
KB
-rw-r--r--
jpeg.html
12.74
KB
-rw-r--r--
json.html
67.04
KB
-rw-r--r--
keyword.html
7.68
KB
-rw-r--r--
language.html
11.03
KB
-rw-r--r--
linecache.html
10.59
KB
-rw-r--r--
locale.html
55.14
KB
-rw-r--r--
logging.config.html
63.36
KB
-rw-r--r--
logging.handlers.html
69.64
KB
-rw-r--r--
logging.html
95.64
KB
-rw-r--r--
mac.html
21.79
KB
-rw-r--r--
macos.html
14.76
KB
-rw-r--r--
macosa.html
12.96
KB
-rw-r--r--
macostools.html
15.52
KB
-rw-r--r--
macpath.html
7.76
KB
-rw-r--r--
mailbox.html
156.75
KB
-rw-r--r--
mailcap.html
13.21
KB
-rw-r--r--
markup.html
18.77
KB
-rw-r--r--
marshal.html
17.98
KB
-rw-r--r--
math.html
39.24
KB
-rw-r--r--
md5.html
13.97
KB
-rw-r--r--
mhlib.html
21.54
KB
-rw-r--r--
mimetools.html
19.25
KB
-rw-r--r--
mimetypes.html
28.39
KB
-rw-r--r--
mimewriter.html
15.02
KB
-rw-r--r--
mimify.html
13.36
KB
-rw-r--r--
miniaeframe.html
12.2
KB
-rw-r--r--
misc.html
6.87
KB
-rw-r--r--
mm.html
9.03
KB
-rw-r--r--
mmap.html
28.36
KB
-rw-r--r--
modulefinder.html
15.31
KB
-rw-r--r--
modules.html
8.46
KB
-rw-r--r--
msilib.html
52.43
KB
-rw-r--r--
msvcrt.html
19.37
KB
-rw-r--r--
multifile.html
24.3
KB
-rw-r--r--
multiprocessing.html
365.71
KB
-rw-r--r--
mutex.html
11.23
KB
-rw-r--r--
netdata.html
16.98
KB
-rw-r--r--
netrc.html
12.3
KB
-rw-r--r--
new.html
12.12
KB
-rw-r--r--
nis.html
10.64
KB
-rw-r--r--
nntplib.html
41.92
KB
-rw-r--r--
numbers.html
37.75
KB
-rw-r--r--
numeric.html
13.55
KB
-rw-r--r--
operator.html
82
KB
-rw-r--r--
optparse.html
222.56
KB
-rw-r--r--
os.html
214.25
KB
-rw-r--r--
os.path.html
38.34
KB
-rw-r--r--
ossaudiodev.html
41.5
KB
-rw-r--r--
othergui.html
9.08
KB
-rw-r--r--
parser.html
39.36
KB
-rw-r--r--
pdb.html
33.96
KB
-rw-r--r--
persistence.html
14.87
KB
-rw-r--r--
pickle.html
102.27
KB
-rw-r--r--
pickletools.html
10.63
KB
-rw-r--r--
pipes.html
18.01
KB
-rw-r--r--
pkgutil.html
25.11
KB
-rw-r--r--
platform.html
28.37
KB
-rw-r--r--
plistlib.html
17.03
KB
-rw-r--r--
popen2.html
25.43
KB
-rw-r--r--
poplib.html
22.32
KB
-rw-r--r--
posix.html
14.41
KB
-rw-r--r--
posixfile.html
19.76
KB
-rw-r--r--
pprint.html
29.92
KB
-rw-r--r--
profile.html
63.56
KB
-rw-r--r--
pty.html
9.48
KB
-rw-r--r--
pwd.html
11.43
KB
-rw-r--r--
py_compile.html
11.12
KB
-rw-r--r--
pyclbr.html
14.71
KB
-rw-r--r--
pydoc.html
11.48
KB
-rw-r--r--
pyexpat.html
71.53
KB
-rw-r--r--
python.html
12.27
KB
-rw-r--r--
queue.html
24.22
KB
-rw-r--r--
quopri.html
11.9
KB
-rw-r--r--
random.html
37.83
KB
-rw-r--r--
re.html
134.74
KB
-rw-r--r--
readline.html
28.24
KB
-rw-r--r--
repr.html
20.43
KB
-rw-r--r--
resource.html
26.48
KB
-rw-r--r--
restricted.html
11.65
KB
-rw-r--r--
rexec.html
37.41
KB
-rw-r--r--
rfc822.html
42.22
KB
-rw-r--r--
rlcompleter.html
13.51
KB
-rw-r--r--
robotparser.html
12.27
KB
-rw-r--r--
runpy.html
19.34
KB
-rw-r--r--
sched.html
18.54
KB
-rw-r--r--
scrolledtext.html
9.32
KB
-rw-r--r--
select.html
39.67
KB
-rw-r--r--
sets.html
36.92
KB
-rw-r--r--
sgi.html
9.71
KB
-rw-r--r--
sgmllib.html
30.77
KB
-rw-r--r--
sha.html
12.09
KB
-rw-r--r--
shelve.html
27.02
KB
-rw-r--r--
shlex.html
32.1
KB
-rw-r--r--
shutil.html
40.22
KB
-rw-r--r--
signal.html
31.14
KB
-rw-r--r--
simplehttpserver.html
18.41
KB
-rw-r--r--
simplexmlrpcserver.html
31.39
KB
-rw-r--r--
site.html
23.64
KB
-rw-r--r--
smtpd.html
12.46
KB
-rw-r--r--
smtplib.html
42.13
KB
-rw-r--r--
sndhdr.html
10.02
KB
-rw-r--r--
socket.html
106.34
KB
-rw-r--r--
socketserver.html
59.83
KB
-rw-r--r--
someos.html
15.11
KB
-rw-r--r--
spwd.html
10.33
KB
-rw-r--r--
sqlite3.html
139.5
KB
-rw-r--r--
ssl.html
65.62
KB
-rw-r--r--
stat.html
32.31
KB
-rw-r--r--
statvfs.html
10.6
KB
-rw-r--r--
stdtypes.html
260.4
KB
-rw-r--r--
string.html
106.65
KB
-rw-r--r--
stringio.html
18.81
KB
-rw-r--r--
stringprep.html
16.13
KB
-rw-r--r--
strings.html
14.93
KB
-rw-r--r--
struct.html
40.88
KB
-rw-r--r--
subprocess.html
84.91
KB
-rw-r--r--
sun.html
6.84
KB
-rw-r--r--
sunau.html
27.1
KB
-rw-r--r--
sunaudio.html
17.79
KB
-rw-r--r--
symbol.html
7.66
KB
-rw-r--r--
symtable.html
22.94
KB
-rw-r--r--
sys.html
98.7
KB
-rw-r--r--
sysconfig.html
23.84
KB
-rw-r--r--
syslog.html
17.92
KB
-rw-r--r--
tabnanny.html
10.63
KB
-rw-r--r--
tarfile.html
78.68
KB
-rw-r--r--
telnetlib.html
25.48
KB
-rw-r--r--
tempfile.html
29.42
KB
-rw-r--r--
termios.html
16.01
KB
-rw-r--r--
test.html
52.62
KB
-rw-r--r--
textwrap.html
27.25
KB
-rw-r--r--
thread.html
20.47
KB
-rw-r--r--
threading.html
76.69
KB
-rw-r--r--
time.html
56.93
KB
-rw-r--r--
timeit.html
36.27
KB
-rw-r--r--
tix.html
46.96
KB
-rw-r--r--
tk.html
23.64
KB
-rw-r--r--
tkinter.html
67.67
KB
-rw-r--r--
token.html
19.62
KB
-rw-r--r--
tokenize.html
18.45
KB
-rw-r--r--
trace.html
25.54
KB
-rw-r--r--
traceback.html
33.44
KB
-rw-r--r--
ttk.html
101.75
KB
-rw-r--r--
tty.html
9.06
KB
-rw-r--r--
turtle.html
211.74
KB
-rw-r--r--
types.html
27.59
KB
-rw-r--r--
undoc.html
23.16
KB
-rw-r--r--
unicodedata.html
18.55
KB
-rw-r--r--
unittest.html
202.85
KB
-rw-r--r--
unix.html
10.55
KB
-rw-r--r--
urllib.html
58.68
KB
-rw-r--r--
urllib2.html
100.58
KB
-rw-r--r--
urlparse.html
40.41
KB
-rw-r--r--
user.html
11.83
KB
-rw-r--r--
userdict.html
29.73
KB
-rw-r--r--
uu.html
11.03
KB
-rw-r--r--
uuid.html
28.19
KB
-rw-r--r--
warnings.html
46.6
KB
-rw-r--r--
wave.html
22.22
KB
-rw-r--r--
weakref.html
36.52
KB
-rw-r--r--
webbrowser.html
23.07
KB
-rw-r--r--
whichdb.html
8.85
KB
-rw-r--r--
windows.html
9.33
KB
-rw-r--r--
winsound.html
18.75
KB
-rw-r--r--
wsgiref.html
81.04
KB
-rw-r--r--
xdrlib.html
29.94
KB
-rw-r--r--
xml.dom.html
89.04
KB
-rw-r--r--
xml.dom.minidom.html
40.42
KB
-rw-r--r--
xml.dom.pulldom.html
12.71
KB
-rw-r--r--
xml.etree.elementtree.html
93.22
KB
-rw-r--r--
xml.html
16.49
KB
-rw-r--r--
xml.sax.handler.html
38.63
KB
-rw-r--r--
xml.sax.html
20.22
KB
-rw-r--r--
xml.sax.reader.html
39.09
KB
-rw-r--r--
xml.sax.utils.html
14.26
KB
-rw-r--r--
xmlrpclib.html
60.79
KB
-rw-r--r--
zipfile.html
53.14
KB
-rw-r--r--
zipimport.html
20.42
KB
-rw-r--r--
zlib.html
25.46
KB
-rw-r--r--
Delete
Unzip
Zip
${this.title}
Close
Code Editor : atexit.html
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>27.9. atexit — Exit handlers — Python 2.7.5 documentation</title> <link rel="stylesheet" href="../_static/default.css" type="text/css" /> <link rel="stylesheet" href="../_static/pygments.css" type="text/css" /> <script type="text/javascript"> var DOCUMENTATION_OPTIONS = { URL_ROOT: '../', VERSION: '2.7.5', COLLAPSE_INDEX: false, FILE_SUFFIX: '.html', HAS_SOURCE: true }; </script> <script type="text/javascript" src="../_static/jquery.js"></script> <script type="text/javascript" src="../_static/underscore.js"></script> <script type="text/javascript" src="../_static/doctools.js"></script> <script type="text/javascript" src="../_static/sidebar.js"></script> <link rel="search" type="application/opensearchdescription+xml" title="Search within Python 2.7.5 documentation" href="../_static/opensearch.xml"/> <link rel="author" title="About these documents" href="../about.html" /> <link rel="copyright" title="Copyright" href="../copyright.html" /> <link rel="top" title="Python 2.7.5 documentation" href="../index.html" /> <link rel="up" title="27. Python Runtime Services" href="python.html" /> <link rel="next" title="27.10. traceback — Print or retrieve a stack traceback" href="traceback.html" /> <link rel="prev" title="27.8. abc — Abstract Base Classes" href="abc.html" /> <link rel="shortcut icon" type="image/png" href="../_static/py.png" /> <script type="text/javascript" src="../_static/copybutton.js"></script> </head> <body> <div class="related"> <h3>Navigation</h3> <ul> <li class="right" style="margin-right: 10px"> <a href="../genindex.html" title="General Index" accesskey="I">index</a></li> <li class="right" > <a href="../py-modindex.html" title="Python Module Index" >modules</a> |</li> <li class="right" > <a href="traceback.html" title="27.10. traceback — Print or retrieve a stack traceback" accesskey="N">next</a> |</li> <li class="right" > <a href="abc.html" title="27.8. abc — Abstract Base Classes" accesskey="P">previous</a> |</li> <li><img src="../_static/py.png" alt="" style="vertical-align: middle; margin-top: -1px"/></li> <li><a href="http://www.python.org/">Python</a> »</li> <li> <a href="../index.html">Python 2.7.5 documentation</a> » </li> <li><a href="index.html" >The Python Standard Library</a> »</li> <li><a href="python.html" accesskey="U">27. Python Runtime Services</a> »</li> </ul> </div> <div class="document"> <div class="documentwrapper"> <div class="bodywrapper"> <div class="body"> <div class="section" id="module-atexit"> <span id="atexit-exit-handlers"></span><h1>27.9. <a class="reference internal" href="#module-atexit" title="atexit: Register and execute cleanup functions."><tt class="xref py py-mod docutils literal"><span class="pre">atexit</span></tt></a> — Exit handlers<a class="headerlink" href="#module-atexit" title="Permalink to this headline">¶</a></h1> <p class="versionadded"> <span class="versionmodified">New in version 2.0.</span></p> <p><strong>Source code:</strong> <a class="reference external" href="http://hg.python.org/cpython/file/2.7/Lib/atexit.py">Lib/atexit.py</a></p> <hr class="docutils" /> <p>The <a class="reference internal" href="#module-atexit" title="atexit: Register and execute cleanup functions."><tt class="xref py py-mod docutils literal"><span class="pre">atexit</span></tt></a> module defines a single function to register cleanup functions. Functions thus registered are automatically executed upon normal interpreter termination. The order in which the functions are called is not defined; if you have cleanup operations that depend on each other, you should wrap them in a function and register that one. This keeps <a class="reference internal" href="#module-atexit" title="atexit: Register and execute cleanup functions."><tt class="xref py py-mod docutils literal"><span class="pre">atexit</span></tt></a> simple.</p> <p>Note: the functions registered via this module are not called when the program is killed by a signal not handled by Python, when a Python fatal internal error is detected, or when <a class="reference internal" href="os.html#os._exit" title="os._exit"><tt class="xref py py-func docutils literal"><span class="pre">os._exit()</span></tt></a> is called.</p> <p id="index-0">This is an alternate interface to the functionality provided by the <a class="reference internal" href="sys.html#sys.exitfunc" title="sys.exitfunc"><tt class="xref py py-func docutils literal"><span class="pre">sys.exitfunc()</span></tt></a> variable.</p> <p>Note: This module is unlikely to work correctly when used with other code that sets <tt class="docutils literal"><span class="pre">sys.exitfunc</span></tt>. In particular, other core Python modules are free to use <a class="reference internal" href="#module-atexit" title="atexit: Register and execute cleanup functions."><tt class="xref py py-mod docutils literal"><span class="pre">atexit</span></tt></a> without the programmer’s knowledge. Authors who use <tt class="docutils literal"><span class="pre">sys.exitfunc</span></tt> should convert their code to use <a class="reference internal" href="#module-atexit" title="atexit: Register and execute cleanup functions."><tt class="xref py py-mod docutils literal"><span class="pre">atexit</span></tt></a> instead. The simplest way to convert code that sets <tt class="docutils literal"><span class="pre">sys.exitfunc</span></tt> is to import <a class="reference internal" href="#module-atexit" title="atexit: Register and execute cleanup functions."><tt class="xref py py-mod docutils literal"><span class="pre">atexit</span></tt></a> and register the function that had been bound to <tt class="docutils literal"><span class="pre">sys.exitfunc</span></tt>.</p> <dl class="function"> <dt id="atexit.register"> <tt class="descclassname">atexit.</tt><tt class="descname">register</tt><big>(</big><em>func</em><span class="optional">[</span>, <em>*args</em><span class="optional">[</span>, <em>**kargs</em><span class="optional">]</span><span class="optional">]</span><big>)</big><a class="headerlink" href="#atexit.register" title="Permalink to this definition">¶</a></dt> <dd><p>Register <em>func</em> as a function to be executed at termination. Any optional arguments that are to be passed to <em>func</em> must be passed as arguments to <a class="reference internal" href="#atexit.register" title="atexit.register"><tt class="xref py py-func docutils literal"><span class="pre">register()</span></tt></a>. It is possible to register the same function and arguments more than once.</p> <p>At normal program termination (for instance, if <a class="reference internal" href="sys.html#sys.exit" title="sys.exit"><tt class="xref py py-func docutils literal"><span class="pre">sys.exit()</span></tt></a> is called or the main module’s execution completes), all functions registered are called in last in, first out order. The assumption is that lower level modules will normally be imported before higher level modules and thus must be cleaned up later.</p> <p>If an exception is raised during execution of the exit handlers, a traceback is printed (unless <a class="reference internal" href="exceptions.html#exceptions.SystemExit" title="exceptions.SystemExit"><tt class="xref py py-exc docutils literal"><span class="pre">SystemExit</span></tt></a> is raised) and the exception information is saved. After all exit handlers have had a chance to run the last exception to be raised is re-raised.</p> <p class="versionchanged"> <span class="versionmodified">Changed in version 2.6: </span>This function now returns <em>func</em>, which makes it possible to use it as a decorator.</p> </dd></dl> <div class="admonition-see-also admonition seealso"> <p class="first admonition-title">See also</p> <dl class="last docutils"> <dt>Module <a class="reference internal" href="readline.html#module-readline" title="readline: GNU readline support for Python. (Unix)"><tt class="xref py py-mod docutils literal"><span class="pre">readline</span></tt></a></dt> <dd>Useful example of <a class="reference internal" href="#module-atexit" title="atexit: Register and execute cleanup functions."><tt class="xref py py-mod docutils literal"><span class="pre">atexit</span></tt></a> to read and write <a class="reference internal" href="readline.html#module-readline" title="readline: GNU readline support for Python. (Unix)"><tt class="xref py py-mod docutils literal"><span class="pre">readline</span></tt></a> history files.</dd> </dl> </div> <div class="section" id="atexit-example"> <span id="id1"></span><h2>27.9.1. <a class="reference internal" href="#module-atexit" title="atexit: Register and execute cleanup functions."><tt class="xref py py-mod docutils literal"><span class="pre">atexit</span></tt></a> Example<a class="headerlink" href="#atexit-example" title="Permalink to this headline">¶</a></h2> <p>The following simple example demonstrates how a module can initialize a counter from a file when it is imported and save the counter’s updated value automatically when the program terminates without relying on the application making an explicit call into this module at termination.</p> <div class="highlight-python"><div class="highlight"><pre><span class="k">try</span><span class="p">:</span> <span class="n">_count</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="nb">open</span><span class="p">(</span><span class="s">"counter"</span><span class="p">)</span><span class="o">.</span><span class="n">read</span><span class="p">())</span> <span class="k">except</span> <span class="ne">IOError</span><span class="p">:</span> <span class="n">_count</span> <span class="o">=</span> <span class="mi">0</span> <span class="k">def</span> <span class="nf">incrcounter</span><span class="p">(</span><span class="n">n</span><span class="p">):</span> <span class="k">global</span> <span class="n">_count</span> <span class="n">_count</span> <span class="o">=</span> <span class="n">_count</span> <span class="o">+</span> <span class="n">n</span> <span class="k">def</span> <span class="nf">savecounter</span><span class="p">():</span> <span class="nb">open</span><span class="p">(</span><span class="s">"counter"</span><span class="p">,</span> <span class="s">"w"</span><span class="p">)</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="s">"</span><span class="si">%d</span><span class="s">"</span> <span class="o">%</span> <span class="n">_count</span><span class="p">)</span> <span class="kn">import</span> <span class="nn">atexit</span> <span class="n">atexit</span><span class="o">.</span><span class="n">register</span><span class="p">(</span><span class="n">savecounter</span><span class="p">)</span> </pre></div> </div> <p>Positional and keyword arguments may also be passed to <a class="reference internal" href="#atexit.register" title="atexit.register"><tt class="xref py py-func docutils literal"><span class="pre">register()</span></tt></a> to be passed along to the registered function when it is called:</p> <div class="highlight-python"><div class="highlight"><pre><span class="k">def</span> <span class="nf">goodbye</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="n">adjective</span><span class="p">):</span> <span class="k">print</span> <span class="s">'Goodbye, </span><span class="si">%s</span><span class="s">, it was </span><span class="si">%s</span><span class="s"> to meet you.'</span> <span class="o">%</span> <span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="n">adjective</span><span class="p">)</span> <span class="kn">import</span> <span class="nn">atexit</span> <span class="n">atexit</span><span class="o">.</span><span class="n">register</span><span class="p">(</span><span class="n">goodbye</span><span class="p">,</span> <span class="s">'Donny'</span><span class="p">,</span> <span class="s">'nice'</span><span class="p">)</span> <span class="c"># or:</span> <span class="n">atexit</span><span class="o">.</span><span class="n">register</span><span class="p">(</span><span class="n">goodbye</span><span class="p">,</span> <span class="n">adjective</span><span class="o">=</span><span class="s">'nice'</span><span class="p">,</span> <span class="n">name</span><span class="o">=</span><span class="s">'Donny'</span><span class="p">)</span> </pre></div> </div> <p>Usage as a <a class="reference internal" href="../glossary.html#term-decorator"><em class="xref std std-term">decorator</em></a>:</p> <div class="highlight-python"><div class="highlight"><pre><span class="kn">import</span> <span class="nn">atexit</span> <span class="nd">@atexit.register</span> <span class="k">def</span> <span class="nf">goodbye</span><span class="p">():</span> <span class="k">print</span> <span class="s">"You are now leaving the Python sector."</span> </pre></div> </div> <p>This only works with functions that can be called without arguments.</p> </div> </div> </div> </div> </div> <div class="sphinxsidebar"> <div class="sphinxsidebarwrapper"> <h3><a href="../contents.html">Table Of Contents</a></h3> <ul> <li><a class="reference internal" href="#">27.9. <tt class="docutils literal"><span class="pre">atexit</span></tt> — Exit handlers</a><ul> <li><a class="reference internal" href="#atexit-example">27.9.1. <tt class="docutils literal"><span class="pre">atexit</span></tt> Example</a></li> </ul> </li> </ul> <h4>Previous topic</h4> <p class="topless"><a href="abc.html" title="previous chapter">27.8. <tt class="docutils literal"><span class="pre">abc</span></tt> — Abstract Base Classes</a></p> <h4>Next topic</h4> <p class="topless"><a href="traceback.html" title="next chapter">27.10. <tt class="docutils literal"><span class="pre">traceback</span></tt> — Print or retrieve a stack traceback</a></p> <h3>This Page</h3> <ul class="this-page-menu"> <li><a href="../bugs.html">Report a Bug</a></li> <li><a href="../_sources/library/atexit.txt" rel="nofollow">Show Source</a></li> </ul> <div id="searchbox" style="display: none"> <h3>Quick search</h3> <form class="search" action="../search.html" method="get"> <input type="text" name="q" /> <input type="submit" value="Go" /> <input type="hidden" name="check_keywords" value="yes" /> <input type="hidden" name="area" value="default" /> </form> <p class="searchtip" style="font-size: 90%"> Enter search terms or a module, class or function name. </p> </div> <script type="text/javascript">$('#searchbox').show(0);</script> </div> </div> <div class="clearer"></div> </div> <div class="related"> <h3>Navigation</h3> <ul> <li class="right" style="margin-right: 10px"> <a href="../genindex.html" title="General Index" >index</a></li> <li class="right" > <a href="../py-modindex.html" title="Python Module Index" >modules</a> |</li> <li class="right" > <a href="traceback.html" title="27.10. traceback — Print or retrieve a stack traceback" >next</a> |</li> <li class="right" > <a href="abc.html" title="27.8. abc — Abstract Base Classes" >previous</a> |</li> <li><img src="../_static/py.png" alt="" style="vertical-align: middle; margin-top: -1px"/></li> <li><a href="http://www.python.org/">Python</a> »</li> <li> <a href="../index.html">Python 2.7.5 documentation</a> » </li> <li><a href="index.html" >The Python Standard Library</a> »</li> <li><a href="python.html" >27. Python Runtime Services</a> »</li> </ul> </div> <div class="footer"> © <a href="../copyright.html">Copyright</a> 1990-2019, Python Software Foundation. <br /> The Python Software Foundation is a non-profit corporation. <a href="http://www.python.org/psf/donations/">Please donate.</a> <br /> Last updated on Jul 03, 2019. <a href="../bugs.html">Found a bug</a>? <br /> Created using <a href="http://sphinx.pocoo.org/">Sphinx</a> 1.1.3. </div> </body> </html>
Close