Skip to content
A microframework based on Werkzeug, Jinja2 and good intentions
Python Shell
Pull request Compare This branch is 1375 commits behind pallets:master.
Fetching latest commit…
Cannot retrieve the latest commit at this time.
Failed to load latest commit information.


                          // Flask //

              web development, one drop at a time

    ~ What is Flask?

      Flask is a microframework for Python based on Werkzeug
      and Jinja2.  It's intended for small scale applications
      and was developed with best intentions in mind.

    ~ Is it ready?

      It's still not 1.0 but it's shaping up nicely and is
      already widely used.  Consider the API to slightly
      improve over time but we don't plan on breaking it.

    ~ What do I need?

      Jinja 2.4 and Werkzeug 0.6.1.  `pip` or `easy_install` will
      install them for you if you do `easy_install Flask`.
      I encourage you to use a virtualenv.  Check the docs for
      complete installation and usage instructions.

    ~ Where are the docs?

      Go to for a prebuilt version
      of the current documentation.  Otherwise build them yourself
      from the sphinx sources in the docs folder.

    ~ Where are the tests?

      Good that you're asking.  The tests are in the
      flask/testsuite package.  To run the tests use the
      `` file:

        $ python

      If it's not enough output for you, you can use the
      `--verbose` flag:

        $ python --verbose

      If you just want one particular testcase to run you can
      provide it on the command line:

        $ python test_to_run

    ~ Where can I get help?

      Either use the #pocoo IRC channel on or
      ask on the mailinglist:
Something went wrong with that request. Please try again.