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A Python package to create XForms for ODK Collect.

Project description

pypi python black

pyxform is a Python library that makes writing forms for ODK Collect and Enketo easy by converting XLSForms (Excel spreadsheets) into ODK XForms. The XLSForms format is used in a number of tools.

XLS(X) documents used as input must follow to the XLSForm standard and the resulting output follows the ODK XForms standard.

pyxform is a major rewrite of xls2xform.

Running the latest release of pyxform

For those who want to convert forms at the command line, the latest official release of pyxform can be installed using pip:

pip install pyxform

The xls2xform command can then be used:

xls2xform path_to_XLSForm [output_path]

The currently supported Python versions for pyxform are 3.7, 3.8 and 3.9.

Running pyxform from local source

Note that you must uninstall any globally installed pyxform instance in order to use local modules. Please install java 8 or newer version.

From the command line, complete the following. These steps use a virtualenv to make dependency management easier, and to keep the global site-packages directory clean:

# Get a copy of the repository.
mkdir -P ~/repos/pyxform
cd ~/repos/pyxform
git clone repo

# Create and activate a virtual environment for the install.
/usr/local/bin/python3.8 -m venv venv
. venv/bin/activate

# Install the pyxform and it's production dependencies.
(venv)$ cd repo
(venv)$ pip install -e .
(venv)$ python pyxform/ --help
(venv)$ xls2xform --help           # same effect as previous line
(venv)$ which xls2xform            # ~/repos/pyxform/venv/bin/xls2xform

To leave and return to the virtualenv:

(venv)$ deactivate                 # leave the venv, scripts not on $PATH
$ xls2xform --help
# -bash: xls2xform: command not found
$ . ~/repos/pyxform/venv/bin/activate     # reactivate the venv
(venv)$ which xls2xform                   # scripts available on $PATH again

Installing pyxform from remote source

pip can install from the GitHub repository. Only do this if you want to install from the master branch, which is likely to have pre-release code. To install the latest release, see above.:

pip install git+

You can then run xls2xform from the commandline:

xls2xform path_to_XLSForm [output_path]


To set up for development / contributing, first complete the above steps for “Running pyxform from local source”, then complete the below.:

pip install -r dev_requirements.pip

You can run tests with:


On Windows, use:

nosetests -v -v --traverse-namespace ./tests

Before committing, make sure to format the code using black:

black pyxform tests

If you are using a copy of black outside your virtualenv, make sure it is the same version as listed in requirements_dev.pip.

In case the hooks don’t run, also run the code through isort (sorts imports) and flake8 (misc code quality suggestions). The syntax is the same as above for black.

Writing tests

Make sure to include tests for the changes you’re working on. When writing new tests you should add them in tests folder. Add to an existing test module, or create a new test module. Test modules are named after the corresponding source file, or if the tests concern many files then module name is the topic or feature under test.

When creating new test cases, where possible use PyxformTestCase as a base class instead of unittest.TestCase. The PyxformTestCase is a toolkit for writing XLSForms as MarkDown tables, compiling example XLSForms, and making assertions on the resulting XForm. This makes code review much easier by putting the XLSForm content inline with the test, instead of in a separate file. A unittest.TestCase may be used if the new tests do not involve compiling an XLSForm (but most will). Do not add new tests using the old style XFormTestCase.

When writing new PyxformTestCase tests that make content assertions, it is strongly recommended that the xml__xpath* matchers are used, in particular xml__xpath_match. Most older tests use matchers like xml__contains and xml__excludes, which are simple string matches of XML snippets against the result XForm. The xml__xpath_match kwarg accepts an XPath expression and expects 1 match. The main benefits of using XPath are 1) it allows specifying a document location, and 2) it does not require a particular document order for elements or attributes or whitespace output. To take full advantage of 1), the XPath expressions should specify the full document path (e.g. /h:html/h:head/x:model) rather than a search (e.g. .//x:model). To take full advantage of 2), the expression should include element predicates that specify the expected attribute values, e.g. /h:html/h:body/x:input[@ref='/trigger-column/a']. To specify the absence of an element, an expression like the following may be used with xml__xpath_match: /h:html[not(descendant::x:input)], or alternatively xml__xpath_count: .//x:input with an expected count of 0 (zero).


To check out the documentation for pyxform do the following:

pip install Sphinx==1.0.7
cd your-virtual-env-dir/src/pyxform/docs
make html

Change Log


Releasing pyxform

  1. Make sure the version of ODK Validate in the repo is up-to-date:

    pyxform_validator_update odk update ODK-Validate-vx.x.x.jar
  2. Run all tests through Validate by setting the default for run_odk_validate to kwargs.get("run_odk_validate", True) in tests/

  3. Draft a new GitHub release with the list of merged PRs. Follow the title and description pattern of the previous release.

  4. Checkout a release branch from latest upstream master.

  5. Update CHANGES.txt with the text of the draft release.

  6. Update, pyxform/ with the new release version number.

  7. Commit, push the branch, and initiate a pull request. Wait for tests to pass, then merge the PR.

  8. Tag the release and it will automatically be published

Manually releasing

Releases are now automatic. These instructions are provided for forks or for a future change in process.

  1. In a clean new release only directory, check out master.

  2. Create a new virtualenv in this directory to ensure a clean Python environment:

    /usr/local/bin/python3.8 -m venv pyxform-release
    . pyxform-release/bin/activate
  3. Install the production and packaging requirements:

    pip install -e .
    pip install wheel twine
  4. Clean up build and dist folders:

    rm -rf build dist pyxform.egg-info
  5. Prepare sdist and bdist_wheel distributions:

    python sdist bdist_wheel
  6. Publish release to PyPI with twine:

    twine upload dist/pyxform-*-py3-none-any.whl dist/pyxform-*.tar.gz
  7. Tag the GitHub release and publish it.

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