Frequently asked questions

The following notes answer common questions, and may be useful to you when using akismet.

What versions of Python are supported?

The 1.0 release of akismet supports the following versions of Python:

  • 2.7
  • 3.3
  • 3.4
  • 3.5
  • 3.6

Older versions of Python are not supported; attempting to use akismet 1.0 on Python 2.6, or Python 3.0-3.2, will cause errors.

Do I have to send all the optional arguments?

The Akismet web service supports a large number of optional arguments to provide additional information for classification and training. You can send these arguments when calling comment_check(), submit_spam(), or submit_ham(). The Akismet documentation recommends sending as much information as possible, though only the user_ip and user_agent arguments to those methods are actually required.

Is this only for blog comments?

The Akismet web service can handle many types of user-submitted content, including comments, contact-form submissions, user signups and more. See the documentation of optional arguments for details on how to indicate the type of content you’re sending to Akismet.

How can I test that it’s working?

If you want to verify akismet itself, you can run the test suite; akismet uses tox for testing against the full list of supported Python versions, and installs all test dependencies into the tox virtualenvs. You can also install the test dependencies from the test_requirements.txt file in the source distribution, and then execute the test suite using any standard Python test runner.

Running the test suite requires two environment variables to be set:

  • TEST_AKISMET_API_KEY containing your Akismet API key, and
  • TEST_AKISMET_BLOG_URL containing the URL associated with your API key.

This allows the test suite to access the live Akismet web service to verify functionality.

If you want to manually perform your own tests, you can also instantiate the Akismet class and call its methods. When doing so, it is recommended that you pass the optional keyword argument is_test=1 to the comment_check(), submit_spam(), or submit_ham() methods; this tells the Akismet web service that you are only issuing requests for testing purposes, and will not result in any submissions being incorporated into Akismet’s training corpus.

What user-agent string is sent by akismet?

The Akismet web service documentation recommends sending a string identifying the application or platform with version, and Akismet plugin/implementation name with version. In accordance with this, akismet sends an HTTP User-Agent based on the versions of Python and akismet in use. For example, akismet 1.0 on Python 3.5 will send Python/3.5 |

Does akismet support the “pro-tip” header?

For content determined to be “blatant” spam (and thus which does not need to be placed into a queue for review by a human), the Akismet web service will add the header X-akismet-pro-tip: discard to its comment-check response.

Currently, akismet does not recognize or expose the presence of this header, though a future version may do so.

How am I allowed to use this module?

akismet is distributed under a three-clause BSD license. This is an open-source license which grants you broad freedom to use, redistribute, modify and distribute modified versions of akismet. For details, see the file LICENSE in the source distribution of akismet.

I found a bug or want to make an improvement!

The canonical development repository for akismet is online at <>. Issues and pull requests can both be filed there.