Linux iad1-shared-b7-18 6.6.49-grsec-jammy+ #10 SMP Thu Sep 12 23:23:08 UTC 2024 x86_64
Apache
: 67.205.6.31 | : 216.73.216.47
Cant Read [ /etc/named.conf ]
8.2.29
fernandoquevedo
Terminal
AUTO ROOT
Adminer
Backdoor Destroyer
Linux Exploit
Lock Shell
Lock File
Create User
CREATE RDP
PHP Mailer
BACKCONNECT
UNLOCK SHELL
HASH IDENTIFIER
README
+ Create Folder
+ Create File
/
usr /
share /
doc /
python3.10 /
html /
library /
[ HOME SHELL ]
Name
Size
Permission
Action
2to3.html
70.96
KB
-rw-r--r--
__future__.html
20.75
KB
-rw-r--r--
__main__.html
44.87
KB
-rw-r--r--
_thread.html
30.39
KB
-rw-r--r--
abc.html
46.87
KB
-rw-r--r--
aifc.html
35.56
KB
-rw-r--r--
allos.html
34.33
KB
-rw-r--r--
archiving.html
17
KB
-rw-r--r--
argparse.html
300.89
KB
-rw-r--r--
array.html
37.28
KB
-rw-r--r--
ast.html
293.08
KB
-rw-r--r--
asynchat.html
37.41
KB
-rw-r--r--
asyncio-api-index.html
27.68
KB
-rw-r--r--
asyncio-dev.html
36.1
KB
-rw-r--r--
asyncio-eventloop.html
204.43
KB
-rw-r--r--
asyncio-exceptions.html
17.11
KB
-rw-r--r--
asyncio-future.html
38.23
KB
-rw-r--r--
asyncio-llapi-index.html
61.97
KB
-rw-r--r--
asyncio-platforms.html
21.77
KB
-rw-r--r--
asyncio-policy.html
39.56
KB
-rw-r--r--
asyncio-protocol.html
118.33
KB
-rw-r--r--
asyncio-queue.html
31.86
KB
-rw-r--r--
asyncio-stream.html
69.98
KB
-rw-r--r--
asyncio-subprocess.html
49.25
KB
-rw-r--r--
asyncio-sync.html
42.79
KB
-rw-r--r--
asyncio-task.html
109.14
KB
-rw-r--r--
asyncio.html
17.31
KB
-rw-r--r--
asyncore.html
49.36
KB
-rw-r--r--
atexit.html
22.87
KB
-rw-r--r--
audioop.html
46
KB
-rw-r--r--
audit_events.html
72.85
KB
-rw-r--r--
base64.html
48.09
KB
-rw-r--r--
bdb.html
66
KB
-rw-r--r--
binary.html
15.97
KB
-rw-r--r--
binascii.html
36.3
KB
-rw-r--r--
binhex.html
15.97
KB
-rw-r--r--
bisect.html
43.38
KB
-rw-r--r--
builtins.html
14.87
KB
-rw-r--r--
bz2.html
50.68
KB
-rw-r--r--
calendar.html
69.35
KB
-rw-r--r--
cgi.html
59.95
KB
-rw-r--r--
cgitb.html
19.96
KB
-rw-r--r--
chunk.html
22.21
KB
-rw-r--r--
cmath.html
43.89
KB
-rw-r--r--
cmd.html
50.42
KB
-rw-r--r--
code.html
35.38
KB
-rw-r--r--
codecs.html
157.96
KB
-rw-r--r--
codeop.html
18.26
KB
-rw-r--r--
collections.abc.html
79.17
KB
-rw-r--r--
collections.html
189.43
KB
-rw-r--r--
colorsys.html
17.31
KB
-rw-r--r--
compileall.html
50.68
KB
-rw-r--r--
concurrency.html
24.15
KB
-rw-r--r--
concurrent.futures.html
79.03
KB
-rw-r--r--
concurrent.html
11.56
KB
-rw-r--r--
configparser.html
159.4
KB
-rw-r--r--
constants.html
22.41
KB
-rw-r--r--
contextlib.html
117.2
KB
-rw-r--r--
contextvars.html
38.38
KB
-rw-r--r--
copy.html
17.92
KB
-rw-r--r--
copyreg.html
18.63
KB
-rw-r--r--
crypt.html
28.29
KB
-rw-r--r--
crypto.html
13.93
KB
-rw-r--r--
csv.html
82.89
KB
-rw-r--r--
ctypes.html
295.49
KB
-rw-r--r--
curses.ascii.html
32.04
KB
-rw-r--r--
curses.html
221.24
KB
-rw-r--r--
curses.panel.html
22.16
KB
-rw-r--r--
custominterp.html
11.85
KB
-rw-r--r--
dataclasses.html
113.16
KB
-rw-r--r--
datatypes.html
31.82
KB
-rw-r--r--
datetime.html
374.92
KB
-rw-r--r--
dbm.html
51.16
KB
-rw-r--r--
debug.html
17
KB
-rw-r--r--
decimal.html
270.12
KB
-rw-r--r--
development.html
32.34
KB
-rw-r--r--
devmode.html
31.72
KB
-rw-r--r--
dialog.html
43.03
KB
-rw-r--r--
difflib.html
111.99
KB
-rw-r--r--
dis.html
136.07
KB
-rw-r--r--
distribution.html
13.67
KB
-rw-r--r--
distutils.html
14.73
KB
-rw-r--r--
doctest.html
199.32
KB
-rw-r--r--
email.charset.html
31.92
KB
-rw-r--r--
email.compat32-message.html
97.74
KB
-rw-r--r--
email.contentmanager.html
37.02
KB
-rw-r--r--
email.encoders.html
18.47
KB
-rw-r--r--
email.errors.html
24.45
KB
-rw-r--r--
email.examples.html
60.49
KB
-rw-r--r--
email.generator.html
48.79
KB
-rw-r--r--
email.header.html
37.61
KB
-rw-r--r--
email.headerregistry.html
66.26
KB
-rw-r--r--
email.html
30.75
KB
-rw-r--r--
email.iterators.html
18.23
KB
-rw-r--r--
email.message.html
99.75
KB
-rw-r--r--
email.mime.html
44.89
KB
-rw-r--r--
email.parser.html
57.39
KB
-rw-r--r--
email.policy.html
84.24
KB
-rw-r--r--
email.utils.html
42.57
KB
-rw-r--r--
ensurepip.html
23.9
KB
-rw-r--r--
enum.html
151
KB
-rw-r--r--
errno.html
60.17
KB
-rw-r--r--
exceptions.html
108.44
KB
-rw-r--r--
faulthandler.html
31.5
KB
-rw-r--r--
fcntl.html
36.67
KB
-rw-r--r--
filecmp.html
32.08
KB
-rw-r--r--
fileformats.html
13.52
KB
-rw-r--r--
fileinput.html
40.37
KB
-rw-r--r--
filesys.html
16.78
KB
-rw-r--r--
fnmatch.html
21.02
KB
-rw-r--r--
fractions.html
35.29
KB
-rw-r--r--
frameworks.html
16.15
KB
-rw-r--r--
ftplib.html
71.97
KB
-rw-r--r--
functional.html
12.19
KB
-rw-r--r--
functions.html
260.33
KB
-rw-r--r--
functools.html
92.96
KB
-rw-r--r--
gc.html
40.97
KB
-rw-r--r--
getopt.html
29.4
KB
-rw-r--r--
getpass.html
16.01
KB
-rw-r--r--
gettext.html
98.02
KB
-rw-r--r--
glob.html
27.2
KB
-rw-r--r--
graphlib.html
34.82
KB
-rw-r--r--
grp.html
16.03
KB
-rw-r--r--
gzip.html
45.65
KB
-rw-r--r--
hashlib.html
93.19
KB
-rw-r--r--
heapq.html
42.43
KB
-rw-r--r--
hmac.html
24.74
KB
-rw-r--r--
html.entities.html
14.91
KB
-rw-r--r--
html.html
14.81
KB
-rw-r--r--
html.parser.html
47.7
KB
-rw-r--r--
http.client.html
85.63
KB
-rw-r--r--
http.cookiejar.html
113.94
KB
-rw-r--r--
http.cookies.html
47.64
KB
-rw-r--r--
http.html
45.52
KB
-rw-r--r--
http.server.html
73.05
KB
-rw-r--r--
i18n.html
13.44
KB
-rw-r--r--
idle.html
77.18
KB
-rw-r--r--
imaplib.html
87.08
KB
-rw-r--r--
imghdr.html
17.94
KB
-rw-r--r--
imp.html
54.32
KB
-rw-r--r--
importlib.html
239.96
KB
-rw-r--r--
importlib.metadata.html
43.14
KB
-rw-r--r--
index.html
75.06
KB
-rw-r--r--
inspect.html
168.74
KB
-rw-r--r--
internet.html
29.89
KB
-rw-r--r--
intro.html
13.81
KB
-rw-r--r--
io.html
154.15
KB
-rw-r--r--
ipaddress.html
137.75
KB
-rw-r--r--
ipc.html
12.6
KB
-rw-r--r--
itertools.html
153.27
KB
-rw-r--r--
json.html
98.9
KB
-rw-r--r--
keyword.html
14.88
KB
-rw-r--r--
language.html
16.71
KB
-rw-r--r--
linecache.html
18.09
KB
-rw-r--r--
locale.html
77.35
KB
-rw-r--r--
logging.config.html
100.3
KB
-rw-r--r--
logging.handlers.html
146.28
KB
-rw-r--r--
logging.html
169.67
KB
-rw-r--r--
lzma.html
66.89
KB
-rw-r--r--
mailbox.html
176.34
KB
-rw-r--r--
mailcap.html
20.86
KB
-rw-r--r--
markup.html
22.31
KB
-rw-r--r--
marshal.html
24.43
KB
-rw-r--r--
math.html
85.82
KB
-rw-r--r--
mimetypes.html
40.27
KB
-rw-r--r--
mm.html
11.16
KB
-rw-r--r--
mmap.html
55.53
KB
-rw-r--r--
modulefinder.html
23.67
KB
-rw-r--r--
modules.html
15.88
KB
-rw-r--r--
msilib.html
78.38
KB
-rw-r--r--
msvcrt.html
29.22
KB
-rw-r--r--
multiprocessing.html
405.24
KB
-rw-r--r--
multiprocessing.shared_memory....
60
KB
-rw-r--r--
netdata.html
20.24
KB
-rw-r--r--
netrc.html
20.39
KB
-rw-r--r--
nis.html
16.76
KB
-rw-r--r--
nntplib.html
84.93
KB
-rw-r--r--
numbers.html
45.67
KB
-rw-r--r--
numeric.html
19.29
KB
-rw-r--r--
operator.html
107.32
KB
-rw-r--r--
optparse.html
256.96
KB
-rw-r--r--
os.html
594.39
KB
-rw-r--r--
os.path.html
65.54
KB
-rw-r--r--
ossaudiodev.html
56.35
KB
-rw-r--r--
pathlib.html
170.01
KB
-rw-r--r--
pdb.html
68.67
KB
-rw-r--r--
persistence.html
19.13
KB
-rw-r--r--
pickle.html
154.45
KB
-rw-r--r--
pickletools.html
22.92
KB
-rw-r--r--
pipes.html
21.7
KB
-rw-r--r--
pkgutil.html
42.76
KB
-rw-r--r--
platform.html
45.08
KB
-rw-r--r--
plistlib.html
30.06
KB
-rw-r--r--
poplib.html
41.42
KB
-rw-r--r--
posix.html
20.96
KB
-rw-r--r--
pprint.html
55.35
KB
-rw-r--r--
profile.html
84.63
KB
-rw-r--r--
pty.html
23.7
KB
-rw-r--r--
pwd.html
16.84
KB
-rw-r--r--
py_compile.html
29
KB
-rw-r--r--
pyclbr.html
24.06
KB
-rw-r--r--
pydoc.html
19.59
KB
-rw-r--r--
pyexpat.html
104.38
KB
-rw-r--r--
python.html
22.46
KB
-rw-r--r--
queue.html
43.39
KB
-rw-r--r--
quopri.html
18.64
KB
-rw-r--r--
random.html
86.31
KB
-rw-r--r--
re.html
214.24
KB
-rw-r--r--
readline.html
50.19
KB
-rw-r--r--
reprlib.html
30.85
KB
-rw-r--r--
resource.html
48.26
KB
-rw-r--r--
rlcompleter.html
18.06
KB
-rw-r--r--
runpy.html
30.99
KB
-rw-r--r--
sched.html
27.04
KB
-rw-r--r--
secrets.html
30.2
KB
-rw-r--r--
security_warnings.html
16.21
KB
-rw-r--r--
select.html
74.58
KB
-rw-r--r--
selectors.html
41.91
KB
-rw-r--r--
shelve.html
36.54
KB
-rw-r--r--
shlex.html
61.03
KB
-rw-r--r--
shutil.html
100.13
KB
-rw-r--r--
signal.html
95.39
KB
-rw-r--r--
site.html
38.16
KB
-rw-r--r--
smtpd.html
44.09
KB
-rw-r--r--
smtplib.html
81.4
KB
-rw-r--r--
sndhdr.html
16.4
KB
-rw-r--r--
socket.html
256.95
KB
-rw-r--r--
socketserver.html
91.95
KB
-rw-r--r--
spwd.html
16.71
KB
-rw-r--r--
sqlite3.html
225.51
KB
-rw-r--r--
ssl.html
328.83
KB
-rw-r--r--
stat.html
57.79
KB
-rw-r--r--
statistics.html
123.22
KB
-rw-r--r--
stdtypes.html
615.43
KB
-rw-r--r--
string.html
108.03
KB
-rw-r--r--
stringprep.html
24.94
KB
-rw-r--r--
struct.html
70.58
KB
-rw-r--r--
subprocess.html
199.03
KB
-rw-r--r--
sunau.html
39.84
KB
-rw-r--r--
superseded.html
26.21
KB
-rw-r--r--
symtable.html
33.26
KB
-rw-r--r--
sys.html
198.83
KB
-rw-r--r--
sysconfig.html
39.81
KB
-rw-r--r--
syslog.html
27.36
KB
-rw-r--r--
tabnanny.html
16.18
KB
-rw-r--r--
tarfile.html
161.92
KB
-rw-r--r--
telnetlib.html
38.21
KB
-rw-r--r--
tempfile.html
58.39
KB
-rw-r--r--
termios.html
22.86
KB
-rw-r--r--
test.html
222.85
KB
-rw-r--r--
text.html
16.8
KB
-rw-r--r--
textwrap.html
48.83
KB
-rw-r--r--
threading.html
128.33
KB
-rw-r--r--
time.html
107.46
KB
-rw-r--r--
timeit.html
52.63
KB
-rw-r--r--
tk.html
28.08
KB
-rw-r--r--
tkinter.colorchooser.html
14.49
KB
-rw-r--r--
tkinter.dnd.html
17.09
KB
-rw-r--r--
tkinter.font.html
22.21
KB
-rw-r--r--
tkinter.html
106.85
KB
-rw-r--r--
tkinter.messagebox.html
20.09
KB
-rw-r--r--
tkinter.scrolledtext.html
14.52
KB
-rw-r--r--
tkinter.tix.html
59.69
KB
-rw-r--r--
tkinter.ttk.html
138.37
KB
-rw-r--r--
token.html
45.73
KB
-rw-r--r--
tokenize.html
39.86
KB
-rw-r--r--
trace.html
38.85
KB
-rw-r--r--
traceback.html
75.61
KB
-rw-r--r--
tracemalloc.html
122.33
KB
-rw-r--r--
tty.html
14.46
KB
-rw-r--r--
turtle.html
271.71
KB
-rw-r--r--
types.html
64.85
KB
-rw-r--r--
typing.html
315.69
KB
-rw-r--r--
unicodedata.html
27.3
KB
-rw-r--r--
unittest.html
310.01
KB
-rw-r--r--
unittest.mock-examples.html
177.75
KB
-rw-r--r--
unittest.mock.html
363.51
KB
-rw-r--r--
unix.html
13.46
KB
-rw-r--r--
urllib.error.html
18.56
KB
-rw-r--r--
urllib.html
12.92
KB
-rw-r--r--
urllib.parse.html
104.65
KB
-rw-r--r--
urllib.request.html
208.87
KB
-rw-r--r--
urllib.robotparser.html
22.63
KB
-rw-r--r--
uu.html
18.2
KB
-rw-r--r--
uuid.html
42.88
KB
-rw-r--r--
venv.html
90.43
KB
-rw-r--r--
warnings.html
69.13
KB
-rw-r--r--
wave.html
36.12
KB
-rw-r--r--
weakref.html
73.36
KB
-rw-r--r--
webbrowser.html
33.98
KB
-rw-r--r--
windows.html
12.32
KB
-rw-r--r--
winreg.html
89.48
KB
-rw-r--r--
winsound.html
26.3
KB
-rw-r--r--
wsgiref.html
111.52
KB
-rw-r--r--
xdrlib.html
42.07
KB
-rw-r--r--
xml.dom.html
114.66
KB
-rw-r--r--
xml.dom.minidom.html
49.6
KB
-rw-r--r--
xml.dom.pulldom.html
30.06
KB
-rw-r--r--
xml.etree.elementtree.html
186.49
KB
-rw-r--r--
xml.html
22.34
KB
-rw-r--r--
xml.sax.handler.html
55.78
KB
-rw-r--r--
xml.sax.html
31.74
KB
-rw-r--r--
xml.sax.reader.html
56.23
KB
-rw-r--r--
xml.sax.utils.html
22.28
KB
-rw-r--r--
xmlrpc.client.html
79.73
KB
-rw-r--r--
xmlrpc.html
11.9
KB
-rw-r--r--
xmlrpc.server.html
63.56
KB
-rw-r--r--
zipapp.html
52.45
KB
-rw-r--r--
zipfile.html
116.59
KB
-rw-r--r--
zipimport.html
33.76
KB
-rw-r--r--
zlib.html
42.29
KB
-rw-r--r--
zoneinfo.html
57.25
KB
-rw-r--r--
Delete
Unzip
Zip
${this.title}
Close
Code Editor : stringprep.html
<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="generator" content="Docutils 0.17.1: http://docutils.sourceforge.net/" /> <title>stringprep — Internet String Preparation — Python 3.10.12 documentation</title><meta name="viewport" content="width=device-width, initial-scale=1.0"> <link rel="stylesheet" type="text/css" href="../_static/pygments.css" /> <link rel="stylesheet" type="text/css" href="../_static/pydoctheme.css?2022.1" /> <script data-url_root="../" id="documentation_options" src="../_static/documentation_options.js"></script> <script src="../_static/jquery.js"></script> <script src="../_static/underscore.js"></script> <script src="../_static/doctools.js"></script> <script src="../_static/sidebar.js"></script> <link rel="search" type="application/opensearchdescription+xml" title="Search within Python 3.10.12 documentation" href="../_static/opensearch.xml"/> <link rel="author" title="About these documents" href="../about.html" /> <link rel="index" title="Index" href="../genindex.html" /> <link rel="search" title="Search" href="../search.html" /> <link rel="copyright" title="Copyright" href="../copyright.html" /> <link rel="next" title="readline — GNU readline interface" href="readline.html" /> <link rel="prev" title="unicodedata — Unicode Database" href="unicodedata.html" /> <link rel="canonical" href="file:///usr/share/doc/python3.10/html/library/stringprep.html" /> <style> @media only screen { table.full-width-table { width: 100%; } } </style> <link rel="shortcut icon" type="image/png" href="../_static/py.svg" /> <script type="text/javascript" src="../_static/copybutton.js"></script> <script type="text/javascript" src="../_static/menu.js"></script> </head> <body> <div class="mobile-nav"> <input type="checkbox" id="menuToggler" class="toggler__input" aria-controls="navigation" aria-pressed="false" aria-expanded="false" role="button" aria-label="Menu" /> <label for="menuToggler" class="toggler__label"> <span></span> </label> <nav class="nav-content" role="navigation"> <a href="https://www.python.org/" class="nav-logo"> <img src="../_static/py.svg" alt="Logo"/> </a> <div class="version_switcher_placeholder"></div> <form role="search" class="search" action="../search.html" method="get"> <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" class="search-icon"> <path fill-rule="nonzero" d="M15.5 14h-.79l-.28-.27a6.5 6.5 0 001.48-5.34c-.47-2.78-2.79-5-5.59-5.34a6.505 6.505 0 00-7.27 7.27c.34 2.8 2.56 5.12 5.34 5.59a6.5 6.5 0 005.34-1.48l.27.28v.79l4.25 4.25c.41.41 1.08.41 1.49 0 .41-.41.41-1.08 0-1.49L15.5 14zm-6 0C7.01 14 5 11.99 5 9.5S7.01 5 9.5 5 14 7.01 14 9.5 11.99 14 9.5 14z" fill="#444"></path> </svg> <input type="text" name="q" aria-label="Quick search"/> <input type="submit" value="Go"/> </form> </nav> <div class="menu-wrapper"> <nav class="menu" role="navigation" aria-label="main navigation"> <div class="language_switcher_placeholder"></div> <h4>Previous topic</h4> <p class="topless"><a href="unicodedata.html" title="previous chapter"><code class="xref py py-mod docutils literal notranslate"><span class="pre">unicodedata</span></code> — Unicode Database</a></p> <h4>Next topic</h4> <p class="topless"><a href="readline.html" title="next chapter"><code class="xref py py-mod docutils literal notranslate"><span class="pre">readline</span></code> — GNU readline interface</a></p> <div role="note" aria-label="source link"> <h3>This Page</h3> <ul class="this-page-menu"> <li><a href="../bugs.html">Report a Bug</a></li> <li> <a href="https://github.com/python/cpython/blob/3.10/Doc/library/stringprep.rst" rel="nofollow">Show Source </a> </li> </ul> </div> </nav> </div> </div> <div class="related" role="navigation" aria-label="related navigation"> <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="readline.html" title="readline — GNU readline interface" accesskey="N">next</a> |</li> <li class="right" > <a href="unicodedata.html" title="unicodedata — Unicode Database" accesskey="P">previous</a> |</li> <li><img src="../_static/py.svg" alt="python logo" style="vertical-align: middle; margin-top: -1px"/></li> <li><a href="https://www.python.org/">Python</a> »</li> <li class="switchers"> <div class="language_switcher_placeholder"></div> <div class="version_switcher_placeholder"></div> </li> <li> </li> <li id="cpython-language-and-version"> <a href="../index.html">3.10.12 Documentation</a> » </li> <li class="nav-item nav-item-1"><a href="index.html" >The Python Standard Library</a> »</li> <li class="nav-item nav-item-2"><a href="text.html" accesskey="U">Text Processing Services</a> »</li> <li class="nav-item nav-item-this"><a href=""><code class="xref py py-mod docutils literal notranslate"><span class="pre">stringprep</span></code> — Internet String Preparation</a></li> <li class="right"> <div class="inline-search" role="search"> <form class="inline-search" action="../search.html" method="get"> <input placeholder="Quick search" aria-label="Quick search" 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> </div> | </li> </ul> </div> <div class="document"> <div class="documentwrapper"> <div class="bodywrapper"> <div class="body" role="main"> <section id="module-stringprep"> <span id="stringprep-internet-string-preparation"></span><h1><a class="reference internal" href="#module-stringprep" title="stringprep: String preparation, as per RFC 3453"><code class="xref py py-mod docutils literal notranslate"><span class="pre">stringprep</span></code></a> — Internet String Preparation<a class="headerlink" href="#module-stringprep" title="Permalink to this headline">¶</a></h1> <p><strong>Source code:</strong> <a class="reference external" href="https://github.com/python/cpython/tree/3.10/Lib/stringprep.py">Lib/stringprep.py</a></p> <hr class="docutils" /> <p>When identifying things (such as host names) in the internet, it is often necessary to compare such identifications for “equality”. Exactly how this comparison is executed may depend on the application domain, e.g. whether it should be case-insensitive or not. It may be also necessary to restrict the possible identifications, to allow only identifications consisting of “printable” characters.</p> <p><span class="target" id="index-0"></span><a class="rfc reference external" href="https://datatracker.ietf.org/doc/html/rfc3454.html"><strong>RFC 3454</strong></a> defines a procedure for “preparing” Unicode strings in internet protocols. Before passing strings onto the wire, they are processed with the preparation procedure, after which they have a certain normalized form. The RFC defines a set of tables, which can be combined into profiles. Each profile must define which tables it uses, and what other optional parts of the <code class="docutils literal notranslate"><span class="pre">stringprep</span></code> procedure are part of the profile. One example of a <code class="docutils literal notranslate"><span class="pre">stringprep</span></code> profile is <code class="docutils literal notranslate"><span class="pre">nameprep</span></code>, which is used for internationalized domain names.</p> <p>The module <a class="reference internal" href="#module-stringprep" title="stringprep: String preparation, as per RFC 3453"><code class="xref py py-mod docutils literal notranslate"><span class="pre">stringprep</span></code></a> only exposes the tables from <span class="target" id="index-1"></span><a class="rfc reference external" href="https://datatracker.ietf.org/doc/html/rfc3454.html"><strong>RFC 3454</strong></a>. As these tables would be very large to represent them as dictionaries or lists, the module uses the Unicode character database internally. The module source code itself was generated using the <code class="docutils literal notranslate"><span class="pre">mkstringprep.py</span></code> utility.</p> <p>As a result, these tables are exposed as functions, not as data structures. There are two kinds of tables in the RFC: sets and mappings. For a set, <a class="reference internal" href="#module-stringprep" title="stringprep: String preparation, as per RFC 3453"><code class="xref py py-mod docutils literal notranslate"><span class="pre">stringprep</span></code></a> provides the “characteristic function”, i.e. a function that returns <code class="docutils literal notranslate"><span class="pre">True</span></code> if the parameter is part of the set. For mappings, it provides the mapping function: given the key, it returns the associated value. Below is a list of all functions available in the module.</p> <dl class="py function"> <dt class="sig sig-object py" id="stringprep.in_table_a1"> <span class="sig-prename descclassname"><span class="pre">stringprep.</span></span><span class="sig-name descname"><span class="pre">in_table_a1</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">code</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#stringprep.in_table_a1" title="Permalink to this definition">¶</a></dt> <dd><p>Determine whether <em>code</em> is in tableA.1 (Unassigned code points in Unicode 3.2).</p> </dd></dl> <dl class="py function"> <dt class="sig sig-object py" id="stringprep.in_table_b1"> <span class="sig-prename descclassname"><span class="pre">stringprep.</span></span><span class="sig-name descname"><span class="pre">in_table_b1</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">code</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#stringprep.in_table_b1" title="Permalink to this definition">¶</a></dt> <dd><p>Determine whether <em>code</em> is in tableB.1 (Commonly mapped to nothing).</p> </dd></dl> <dl class="py function"> <dt class="sig sig-object py" id="stringprep.map_table_b2"> <span class="sig-prename descclassname"><span class="pre">stringprep.</span></span><span class="sig-name descname"><span class="pre">map_table_b2</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">code</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#stringprep.map_table_b2" title="Permalink to this definition">¶</a></dt> <dd><p>Return the mapped value for <em>code</em> according to tableB.2 (Mapping for case-folding used with NFKC).</p> </dd></dl> <dl class="py function"> <dt class="sig sig-object py" id="stringprep.map_table_b3"> <span class="sig-prename descclassname"><span class="pre">stringprep.</span></span><span class="sig-name descname"><span class="pre">map_table_b3</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">code</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#stringprep.map_table_b3" title="Permalink to this definition">¶</a></dt> <dd><p>Return the mapped value for <em>code</em> according to tableB.3 (Mapping for case-folding used with no normalization).</p> </dd></dl> <dl class="py function"> <dt class="sig sig-object py" id="stringprep.in_table_c11"> <span class="sig-prename descclassname"><span class="pre">stringprep.</span></span><span class="sig-name descname"><span class="pre">in_table_c11</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">code</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#stringprep.in_table_c11" title="Permalink to this definition">¶</a></dt> <dd><p>Determine whether <em>code</em> is in tableC.1.1 (ASCII space characters).</p> </dd></dl> <dl class="py function"> <dt class="sig sig-object py" id="stringprep.in_table_c12"> <span class="sig-prename descclassname"><span class="pre">stringprep.</span></span><span class="sig-name descname"><span class="pre">in_table_c12</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">code</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#stringprep.in_table_c12" title="Permalink to this definition">¶</a></dt> <dd><p>Determine whether <em>code</em> is in tableC.1.2 (Non-ASCII space characters).</p> </dd></dl> <dl class="py function"> <dt class="sig sig-object py" id="stringprep.in_table_c11_c12"> <span class="sig-prename descclassname"><span class="pre">stringprep.</span></span><span class="sig-name descname"><span class="pre">in_table_c11_c12</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">code</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#stringprep.in_table_c11_c12" title="Permalink to this definition">¶</a></dt> <dd><p>Determine whether <em>code</em> is in tableC.1 (Space characters, union of C.1.1 and C.1.2).</p> </dd></dl> <dl class="py function"> <dt class="sig sig-object py" id="stringprep.in_table_c21"> <span class="sig-prename descclassname"><span class="pre">stringprep.</span></span><span class="sig-name descname"><span class="pre">in_table_c21</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">code</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#stringprep.in_table_c21" title="Permalink to this definition">¶</a></dt> <dd><p>Determine whether <em>code</em> is in tableC.2.1 (ASCII control characters).</p> </dd></dl> <dl class="py function"> <dt class="sig sig-object py" id="stringprep.in_table_c22"> <span class="sig-prename descclassname"><span class="pre">stringprep.</span></span><span class="sig-name descname"><span class="pre">in_table_c22</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">code</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#stringprep.in_table_c22" title="Permalink to this definition">¶</a></dt> <dd><p>Determine whether <em>code</em> is in tableC.2.2 (Non-ASCII control characters).</p> </dd></dl> <dl class="py function"> <dt class="sig sig-object py" id="stringprep.in_table_c21_c22"> <span class="sig-prename descclassname"><span class="pre">stringprep.</span></span><span class="sig-name descname"><span class="pre">in_table_c21_c22</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">code</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#stringprep.in_table_c21_c22" title="Permalink to this definition">¶</a></dt> <dd><p>Determine whether <em>code</em> is in tableC.2 (Control characters, union of C.2.1 and C.2.2).</p> </dd></dl> <dl class="py function"> <dt class="sig sig-object py" id="stringprep.in_table_c3"> <span class="sig-prename descclassname"><span class="pre">stringprep.</span></span><span class="sig-name descname"><span class="pre">in_table_c3</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">code</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#stringprep.in_table_c3" title="Permalink to this definition">¶</a></dt> <dd><p>Determine whether <em>code</em> is in tableC.3 (Private use).</p> </dd></dl> <dl class="py function"> <dt class="sig sig-object py" id="stringprep.in_table_c4"> <span class="sig-prename descclassname"><span class="pre">stringprep.</span></span><span class="sig-name descname"><span class="pre">in_table_c4</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">code</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#stringprep.in_table_c4" title="Permalink to this definition">¶</a></dt> <dd><p>Determine whether <em>code</em> is in tableC.4 (Non-character code points).</p> </dd></dl> <dl class="py function"> <dt class="sig sig-object py" id="stringprep.in_table_c5"> <span class="sig-prename descclassname"><span class="pre">stringprep.</span></span><span class="sig-name descname"><span class="pre">in_table_c5</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">code</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#stringprep.in_table_c5" title="Permalink to this definition">¶</a></dt> <dd><p>Determine whether <em>code</em> is in tableC.5 (Surrogate codes).</p> </dd></dl> <dl class="py function"> <dt class="sig sig-object py" id="stringprep.in_table_c6"> <span class="sig-prename descclassname"><span class="pre">stringprep.</span></span><span class="sig-name descname"><span class="pre">in_table_c6</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">code</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#stringprep.in_table_c6" title="Permalink to this definition">¶</a></dt> <dd><p>Determine whether <em>code</em> is in tableC.6 (Inappropriate for plain text).</p> </dd></dl> <dl class="py function"> <dt class="sig sig-object py" id="stringprep.in_table_c7"> <span class="sig-prename descclassname"><span class="pre">stringprep.</span></span><span class="sig-name descname"><span class="pre">in_table_c7</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">code</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#stringprep.in_table_c7" title="Permalink to this definition">¶</a></dt> <dd><p>Determine whether <em>code</em> is in tableC.7 (Inappropriate for canonical representation).</p> </dd></dl> <dl class="py function"> <dt class="sig sig-object py" id="stringprep.in_table_c8"> <span class="sig-prename descclassname"><span class="pre">stringprep.</span></span><span class="sig-name descname"><span class="pre">in_table_c8</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">code</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#stringprep.in_table_c8" title="Permalink to this definition">¶</a></dt> <dd><p>Determine whether <em>code</em> is in tableC.8 (Change display properties or are deprecated).</p> </dd></dl> <dl class="py function"> <dt class="sig sig-object py" id="stringprep.in_table_c9"> <span class="sig-prename descclassname"><span class="pre">stringprep.</span></span><span class="sig-name descname"><span class="pre">in_table_c9</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">code</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#stringprep.in_table_c9" title="Permalink to this definition">¶</a></dt> <dd><p>Determine whether <em>code</em> is in tableC.9 (Tagging characters).</p> </dd></dl> <dl class="py function"> <dt class="sig sig-object py" id="stringprep.in_table_d1"> <span class="sig-prename descclassname"><span class="pre">stringprep.</span></span><span class="sig-name descname"><span class="pre">in_table_d1</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">code</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#stringprep.in_table_d1" title="Permalink to this definition">¶</a></dt> <dd><p>Determine whether <em>code</em> is in tableD.1 (Characters with bidirectional property “R” or “AL”).</p> </dd></dl> <dl class="py function"> <dt class="sig sig-object py" id="stringprep.in_table_d2"> <span class="sig-prename descclassname"><span class="pre">stringprep.</span></span><span class="sig-name descname"><span class="pre">in_table_d2</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">code</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#stringprep.in_table_d2" title="Permalink to this definition">¶</a></dt> <dd><p>Determine whether <em>code</em> is in tableD.2 (Characters with bidirectional property “L”).</p> </dd></dl> </section> <div class="clearer"></div> </div> </div> </div> <div class="sphinxsidebar" role="navigation" aria-label="main navigation"> <div class="sphinxsidebarwrapper"> <h4>Previous topic</h4> <p class="topless"><a href="unicodedata.html" title="previous chapter"><code class="xref py py-mod docutils literal notranslate"><span class="pre">unicodedata</span></code> — Unicode Database</a></p> <h4>Next topic</h4> <p class="topless"><a href="readline.html" title="next chapter"><code class="xref py py-mod docutils literal notranslate"><span class="pre">readline</span></code> — GNU readline interface</a></p> <div role="note" aria-label="source link"> <h3>This Page</h3> <ul class="this-page-menu"> <li><a href="../bugs.html">Report a Bug</a></li> <li> <a href="https://github.com/python/cpython/blob/3.10/Doc/library/stringprep.rst" rel="nofollow">Show Source </a> </li> </ul> </div> </div> </div> <div class="clearer"></div> </div> <div class="related" role="navigation" aria-label="related navigation"> <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="readline.html" title="readline — GNU readline interface" >next</a> |</li> <li class="right" > <a href="unicodedata.html" title="unicodedata — Unicode Database" >previous</a> |</li> <li><img src="../_static/py.svg" alt="python logo" style="vertical-align: middle; margin-top: -1px"/></li> <li><a href="https://www.python.org/">Python</a> »</li> <li class="switchers"> <div class="language_switcher_placeholder"></div> <div class="version_switcher_placeholder"></div> </li> <li> </li> <li id="cpython-language-and-version"> <a href="../index.html">3.10.12 Documentation</a> » </li> <li class="nav-item nav-item-1"><a href="index.html" >The Python Standard Library</a> »</li> <li class="nav-item nav-item-2"><a href="text.html" >Text Processing Services</a> »</li> <li class="nav-item nav-item-this"><a href=""><code class="xref py py-mod docutils literal notranslate"><span class="pre">stringprep</span></code> — Internet String Preparation</a></li> <li class="right"> <div class="inline-search" role="search"> <form class="inline-search" action="../search.html" method="get"> <input placeholder="Quick search" aria-label="Quick search" 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> </div> | </li> </ul> </div> <div class="footer"> © <a href="../copyright.html">Copyright</a> 2001-2026, Python Software Foundation. <br /> This page is licensed under the Python Software Foundation License Version 2. <br /> Examples, recipes, and other code in the documentation are additionally licensed under the Zero Clause BSD License. <br /> See <a href="/license.html">History and License</a> for more information.<br /> <br /> The Python Software Foundation is a non-profit corporation. <a href="https://www.python.org/psf/donations/">Please donate.</a> <br /> <br /> Last updated on January 26, 2026. <a href="/bugs.html">Found a bug</a>? <br /> Created using <a href="https://www.sphinx-doc.org/">Sphinx</a> 4.3.2. </div> </body> </html>
Close