Skip to main content

publicsuffixlist implement

Project description

publicsuffixlist

Public Suffix List parser implementation for Python 2.6+/3.x.

  • Compliant with TEST DATA
  • Support IDN (unicode or punycoded).
  • Support Python2.6+ and Python 3.x
  • Shipped with built-in PSL and the updater script.
  • Written in Pure Python. No library dependencies.

Build Status PyPI version Downloads

Install

publicsuffixlist can be installed via pip or pip3.

$ sudo pip install publicsuffixlist

If you are in a bit old distributions (RHEL/CentOS6.x), you may need to update pip itself before install.

$ sudo pip install -U pip

Usage

from publicsuffixlist import PublicSuffixList

psl = PublicSuffixList()
# uses built-in PSL file

psl.publicsuffix("www.example.com")   # "com"
# longest public suffix part

psl.privatesuffix("www.example.com")  # "example.com"
# shortest domain assigned for a registrant

psl.privatesuffix("com") # None
# None if no private (non-public) part found


psl.publicsuffix("www.example.unknownnewtld") # "unknownnewtld"
# new TLDs are valid public suffix by default

psl.publicsuffix(u"www.example.香港")   # u"香港"
# accept unicode

psl.publicsuffix("www.example.xn--j6w193g") # "xn--j6w193g"
# accept punycoded IDNs by default

Latest PSL can be passed as a file like line-iterable object.

with open("latest_psl.dat", "rb") as f:
    psl = PublicSuffixList(f)

Works with both Python 2.x and 3.x.

$ python2 setup.py test
$ python3 setup.py test

Drop-in compatibility code to replace publicsuffix

# from publicsuffix import PublicSuffixList
from publicsuffixlist.compat import PublicSuffixList

psl = PublicSuffixList()
psl.suffix("www.example.com")   # return "example.com"
psl.suffix("com")               # return "" (as str, not None)

Some convenient methods available.

psl.is_private("example.com")  # True
psl.privateparts("aaa.www.example.com") # ("aaa", "www", "example.com")
psl.subdomain("aaa.www.example.com", depth=1) # "www.example.com"

Limitation

publicsuffixlist do NOT provide domain name validation. In DNS protocol, most of 8-bit characters are acceptable label of domain name. ICANN compliant registries do not accept domain names that have _ (underscore) but hostname may have. DMARC records, for example.

Users need to confirm the input is valid based on the users' context.

Partially encoded (Unicode-mixed) Punycode is not supported because of very slow Punycode en/decoding and unpredictable encoding of results. If you are not sure the input is valid Punycode or not, you should do unknowndomain.encode("idna") which is idempotence.

ICANN and private suffixes

The public suffix list contains both suffixes for ICANN domains and private suffixes. Using the flag only_icann the private suffixes can be deactivated:

>>> psl = PublicSuffixList()
>>> psl.publicsuffix("example.priv.at")
'priv.at'
>>> psl = PublicSuffixList(only_icann=True)
>>> psl.publicsuffix("example.priv.at")
'at'

License

  • This module is licensed under Mozilla Public License 2.0.
  • Public Suffix List maintained by Mozilla Foundation is licensed under Mozilla Public License 2.0.
  • PSL testcase dataset is public domain (CC0).

Development / Packaging

This module and its packaging workflow are maintained in the author's repository located at https://github.com/ko-zu/psl. A new package, which includes the latest PSL file, is automatically generated and uploaded to PyPI. The last part of the version number represents the release date, for instance, 0.10.1.20230331.

Source / Link

Project details


Release history Release notifications | RSS feed

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

publicsuffixlist-0.10.0.20230615.tar.gz (93.8 kB view details)

Uploaded Source

Built Distribution

publicsuffixlist-0.10.0.20230615-py2.py3-none-any.whl (94.3 kB view details)

Uploaded Python 2 Python 3

File details

Details for the file publicsuffixlist-0.10.0.20230615.tar.gz.

File metadata

File hashes

Hashes for publicsuffixlist-0.10.0.20230615.tar.gz
Algorithm Hash digest
SHA256 9698ed91c0c683ad66317e16304e5e2f741ff8ade6370946039dc48e97058f2e
MD5 385495a0d9d7424ee59493b74fd855f9
BLAKE2b-256 ff63092979dd7878758e45ad5f44d2b3412b3e784e440b862f9a0d459cee93bb

See more details on using hashes here.

File details

Details for the file publicsuffixlist-0.10.0.20230615-py2.py3-none-any.whl.

File metadata

File hashes

Hashes for publicsuffixlist-0.10.0.20230615-py2.py3-none-any.whl
Algorithm Hash digest
SHA256 d121624d37b431a40d5bea0c5ea934202dcb4a89a9bd4779b570678627f3eb1a
MD5 52704497cef477ad2334ee16e470bd22
BLAKE2b-256 c6724507bcedaf768628df379c6d2dc49cb57839fd69452c10daef97d7836369

See more details on using hashes here.

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page