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This tool helps to describe the images contributed to Wiki Loves competitions.

Isa is not only an acronym for information structured additions, but is also a chiShona language word for ‘put’.


Installing dependencies

Install application dependencies using the script:


The above script attempts to check system requirements and informs user on next steps.

Quickstart the app

export # add --reload parameter to enable Flask auto-compilation feature
flask run

Managing Translations

Steps 1 to 3a below show how to extract and generate translation files from the source code.

Start from step 3b if you are only adding a new supported language for the app.

Start from step 4 if you are only adding translated text for already supported languages.

Skip directly to step 5 if you have pulled changes which include updated translations (edited .po files).

All commands should be run from the /isa subfolder.

1. Add or edit translatable text in source code

Mark new strings to be translated using formats shown below:

  • Templates: _('')
  • Python: gettext('')

2. Extract strings to .pot file

run pybabel extract -F babel.cfg -o messages.pot --input-dirs=. This step is only needed after changes have been made to translatable text in the source code in step 1.

3a. Update .po files

run pybabel update -i messages.pot -d translations -l <lang_code> Use this command to update .po files for each supported language.

It will merge in any new strings found in the .pot file generated in step 2. Any strings that are no longer found are placed at the bottom of the file, using commented out lines beginning with #~

3b. Create new .po file

run pybabel init -i messages.pot -d translations -l <lang_code> Use this command to create a new .po file.

This step is only needed when adding a new supported language. Commit the new .po file to source control.

4. Add new translations

Add the actual translated text for each language to the corresponding .po file located at isa/translations/<lang_code>/LC_MESSAGES/messages.po

This step should be completed by translators, so can happen at any time. Commit any changes to .po files to source control.

5. Compile final .mo file

run pybabel compile -d translations Once translations are ready from step 4 (or from pulling changes with updated .po files), you need run the compile command before seeing the new translations in the app.

Testing the application

  • To run tests from the applications root directory, use the command nose2 -v tests.<test_module_name>

  • To get a blueprint's coverage, run following commands:

    • From the applications root directory, run coverage run -m unittest discover
    • Then run coverage report -m isa/<blueprint_name>/*.py>


Github mirror of "labs/tools/Isa" - our actual code is hosted with Gerrit (please see for contributing)



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