September 5, 2020

Change Language Open edX

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Open edX uses Transifex, an open source translation platform, to power the translation of edX software into different languages. All translations are hosted at, which provides a web application allowing translators to write, submit, and manage their translations.

  1. Login to server and switch to edxapp environment for edX native installation.

    $ sudo -H -u edxapp bash
    $ source /edx/app/edxapp/edxapp_env
    $ cd /edx/app/edxapp/edx-platform
  2. Install Python dependencies

    $ pip install transifex-client

    or when using bitnami, use this

    $ sudo /opt/bitnami/apps/edx/bin/pip.edxapp install transifex-client
  3. Create the ~/.transifexrc file and set your credentials as follows:

    hostname =
    username = USER
    password = PASS
    token =

Token is left blank. You have to have permissions for the project (edx-platform) AFAIK - (it is free to sign up and join this project as a translator).

  1. Make sure all languages you wish to download are present and uncommented in conf/locale/config.yaml. For example, if you wish to download Arabic and Indonesian, make sure your config.yaml file looks like this:

         - en  # English - Source Language
         - id  # Indonesian
  1. Set the value of the LANGUAGE_CODE variable to the language you desire in the configuration files.

    For Open edX native installation

    • /edx/app/edxapp/lms.env.json
    • /edx/app/edxapp/cms.env.json
    • /edx/app/edxapp/edx-platform/lms/envs/

    For Open edX on bitnami

    • /opt/bitnami/apps/edx/conf/cms.env.json
    • /opt/bitnami/apps/edx/conf/lms.env.json
    • /opt/bitnami/apps/edx/edx-platform/lms/envs/
  1. Restart lms and cms for reload configuration.

  2. Download the translations, extract and compile.

For edX native installation

$ paver i18n_robot_pull --settings=production

For edX on bitnami

$ cd /opt/bitnami/apps/edx/edx-platform
$ sudo /opt/bitnami/apps/edx/bin/paver.edxapp i18n_robot_pull
  1. Restart lms and cms for reload configuration.

Update Localization

  1. Edit the contents of .po files located in conf/locale/<lang_code>/LC_MESSAGES as you wish. When you finished your modification process, re-compile the translation messages manually by executing the following command in your edx-platform directory with your edx-platform virtualenv

    $ paver i18n_fastgenerate
  2. Restart lms and cms.