Pythonic task management & command execution.
Python Other
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invoke Implement flag-got-value parser tracking. Oct 18, 2017
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.coveragerc Update coverage stuff to use .coveragerc, and add codecov. Dec 22, 2015
.gitignore Some tools generate coverage.xml now whee Dec 22, 2015
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LICENSE Happy New Year Jan 1, 2017 Tidy up so source distro includes, etc. Feb 8, 2016
README.rst Switch to Python 2.7-style string interpolation, i.e. {} instead of {0} Oct 10, 2017
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dev-requirements.txt No longer limited to 2.6-compat Sphinxes, let's see if 1.6.x fixes th… Oct 18, 2017
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tasks-requirements.txt Must use modern twine for modern pypi \o/ Jul 28, 2017 Check desc when packaging Apr 19, 2017
tox.ini Start setting up tox Mar 16, 2013


Invoke is a Python (2.7 and 3.4+) task execution tool & library, drawing inspiration from various sources to arrive at a powerful & clean feature set.

  • Like Ruby's Rake tool and Invoke's own predecessor Fabric 1.x, it provides a clean, high level API for running shell commands and defining/organizing task functions from a file:

    from invoke import task
    def clean(ctx, docs=False, bytecode=False, extra=''):
        patterns = ['build']
        if docs:
        if bytecode:
        if extra:
        for pattern in patterns:
  "rm -rf {}".format(pattern))
    def build(ctx, docs=False):"python build")
        if docs:
  "sphinx-build docs docs/_build")
  • From GNU Make, it inherits an emphasis on minimal boilerplate for common patterns and the ability to run multiple tasks in a single invocation:

    $ invoke clean build
  • Where Fabric 1.x considered the command-line approach the default mode of use, Invoke (and tools built on it) are equally at home embedded in your own Python code or a REPL:

    .. testsetup:: blurb
        fakeout = """
        Hello, this is pip
        Installing is fun
        Fake output is fake
        Successfully installed invocations-0.13.0 pep8-1.5.7 spec-1.3.1
        proc = MockSubprocess(out=fakeout, exit=0)
    .. testcleanup:: blurb
    >>> from invoke import run
    >>> cmd = "pip install -r requirements.txt"
    >>> result = run(cmd, hide=True, warn=True)
    >>> print(result.ok)
    >>> print(result.stdout.splitlines()[-1])
    Successfully installed invocations-0.13.0 pep8-1.5.7 spec-1.3.1
  • Following the lead of most Unix CLI applications, it offers a traditional flag-based style of command-line parsing, deriving flag names and value types from task signatures (optionally, of course!):

    $ invoke clean --docs --bytecode build --docs --extra='**/*.pyo'
    $ invoke clean -d -b build --docs -e '**/*.pyo'
    $ invoke clean -db build -de '**/*.pyo'
  • Like many of its predecessors, it offers advanced features as well -- namespacing, task aliasing, before/after hooks, parallel execution and more.

For documentation, including detailed installation information, please see Post-install usage information may be found in invoke --help.

You can install the development version via pip install -e git+