• grabs up to date useragent from useragentstring.com
• randomize with real world statistic via w3schools.com

pip install fake-useragent

from fake_useragent import UserAgent
ua = UserAgent()

ua.ie
# Mozilla/5.0 (Windows; U; MSIE 9.0; Windows NT 9.0; en-US);
ua.msie
# Mozilla/5.0 (compatible; MSIE 10.0; Macintosh; Intel Mac OS X 10_7_3; Trident/6.0)'
ua['Internet Explorer']
# Mozilla/5.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; GTB7.4; InfoPath.2; SV1; .NET CLR 3.3.69573; WOW64; en-US)
ua.opera
# Opera/9.80 (X11; Linux i686; U; ru) Presto/2.8.131 Version/11.11
ua.chrome
# Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.2 (KHTML, like Gecko) Chrome/22.0.1216.0 Safari/537.2'
ua.google
# Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_4) AppleWebKit/537.13 (KHTML, like Gecko) Chrome/24.0.1290.1 Safari/537.13
ua['google chrome']
# Mozilla/5.0 (X11; CrOS i686 2268.111.0) AppleWebKit/536.11 (KHTML, like Gecko) Chrome/20.0.1132.57 Safari/536.11
ua.firefox
# Mozilla/5.0 (Windows NT 6.2; Win64; x64; rv:16.0.1) Gecko/20121011 Firefox/16.0.1
ua.ff
# Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:15.0) Gecko/20100101 Firefox/15.0.1
ua.safari
# Mozilla/5.0 (iPad; CPU OS 6_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/6.0 Mobile/10A5355d Safari/8536.25

# and the best one, random via real world browser usage statistic
ua.random

fake-useragent store collected data at your os temp dir, like /tmp

If You want to update saved database just:

from fake_useragent import UserAgent
ua = UserAgent()
ua.update()

If You don't want cache database or no writable file system:

from fake_useragent import UserAgent
ua = UserAgent(cache=False)

Sometimes, useragentstring.com or w3schools.com changes their html, or down, in such case fake-useragent uses heroku fallback

If You don't want to use hosted cache server (version 0.1.5 added)

from fake_useragent import UserAgent
ua = UserAgent(use_cache_server=False)

In very rare case, if hosted cache server and sources will be unavailable fake-useragent wont be able to download data: (version 0.1.3 added)

from fake_useragent import UserAgent
ua = UserAgent()

# Traceback (most recent call last):
#   ...
# fake_useragent.errors.FakeUserAgentError

# You can catch it via

from fake_useragent import FakeUserAgentError

try:
    ua = UserAgent()
except FakeUserAgentError:
    pass

If You will try to get unknown browser: (version 0.1.3 changed)

from fake_useragent import UserAgent
ua = UserAgent()
ua.best_browser
# Traceback (most recent call last):
#   ...
# fake_useragent.errors.FakeUserAgentError

You can completely disable ANY annoying exception with adding fallback: (version 0.1.4 added)

import fake_useragent

ua = fake_useragent.UserAgent(fallback='Your favorite Browser')
# in case if something went wrong, one more time it is REALLY!!! rare case
ua.random == 'Your favorite Browser'

Want to control location of data file? (version 0.1.4 added)

import fake_useragent

# I am STRONGLY!!! recommend to use version suffix
location = '/home/user/fake_useragent%s.json' % fake_useragent.VERSION

ua = fake_useragent.UserAgent(path=location)
ua.random

If you need to safe some attributes from overriding them in UserAgent by __getattr__ method use safe_attrs you can pass there attributes names. At least this will prevent you from raising FakeUserAgentError when attribute not found.

For example, when using fake_useragent with injections you need to:

import fake_useragent

ua = fake_useragent.UserAgent(safe_attrs=('__injections__',))

Please, do not use if you don't understand why you need this. This is magic for rarely extreme case.

Make sure that You using latest version!!!

pip install -U fake-useragent

Check version via python console: (version 0.1.4 added)

import fake_useragent

print(fake_useragent.VERSION)

And You are always welcome to post issues

Please do not forget mention version that You are using

pip install tox
tox

• 0.1.11 October 4, 2018

  • moved s3 + cloudfront fallback to heroku.com, cuz someone from Florida did ~25M requests last month

• 0.1.10 February 11, 2018

  • Minor fix docs cloudfront url

• 0.1.9 February 11, 2018

  • fix w3schools.com renamed IE/Edge to Edge/IE
  • moved heroku.com fallback to s3 + cloudfront
  • stop testing Python3.3 and pypy

• 0.1.8 November 2, 2017

  • fix useragentstring.com Can't connect to local MySQL server through socket

• 0.1.7 April 2, 2017

  • fix broken README.rst

• 0.1.6 April 2, 2017

  • fixes bug use_cache_server do not affected anything
  • w3schools.com moved to https
  • verify_ssl options added, by default it is True (urllib.urlopen ssl context for Python 2.7.9- and 3.4.3- is not supported)

• 0.1.5 February 28, 2017

  • added ua.edge alias to Internet Explorer
  • w3schools.com starts displaying Edge statistic
  • Python 2.6 is not tested anymore
  • use_cache_server option added
  • Increased fake_useragent.settings.HTTP_TIMEOUT to 5 seconds

• 0.1.4 December 14, 2016

  • Added custom data file location support
  • Added fallback browser support, in case of unavailable data sources
  • Added alias fake_useragent.FakeUserAgent for fake_useragent.UserAgent
  • Added alias fake_useragent.UserAgentError for fake_useragent.FakeUserAgentError
  • Reduced fake_useragent.settings.HTTP_TIMEOUT to 3 seconds
  • Started migration to new data file format
  • Simplified a lot 4+ years out of date code
  • Better thread/greenlet safety
  • Added verbose logging
  • Added safe_attrs for prevent overriding by __getattr__

• 0.1.3 November 24, 2016

  • Added hosted data file, when remote services is unavailable
  • Raises fake_useragent.errors.FakeUserAgentError in case when there is not way to download data
  • Raises fake_useragent.errors.FakeUserAgentError instead of None in case of unknown browser
  • Added gevent.sleep support in gevent patched environment when trying to download data

• X.X.X xxxxxxx xx, xxxx

  • xxxxx ?????

You can visit authors page