Natural Language Processing

Integrating Weblate into Your Picture Annotation System with Python

April 4, 2025
roosho

Weblate Integration

Integrating Weblate into a picture annotation system utilizing Python can improve the localization and translation processes of the applying. Weblate is a web-based translation instrument that helps numerous file codecs and supplies a collaborative atmosphere for translators. By leveraging its API, builders can automate the interpretation of picture annotations, making certain that customers from completely different linguistic backgrounds can entry and perceive the content material successfully. This integration includes organising a Weblate undertaking, configuring the mandatory translation information, and using Python scripts to work together with the Weblate API for fetching and updating translations.

To start the combination, builders have to create a Weblate undertaking that corresponds to the picture annotation system. This consists of defining the supply language and the goal languages for translation. As soon as the undertaking is ready up, the following step is to organize the interpretation information, which can embrace strings associated to picture descriptions, labels, and different related metadata. Python libraries similar to requests can be utilized to work together with the Weblate API, permitting builders to programmatically push new strings for translation and pull accomplished translations again into the picture annotation system.

After establishing the connection between the picture annotation system and Weblate, it’s important to implement a workflow that handles the synchronization of translations. This will contain organising a cron job or a background process that periodically checks for updates in Weblate and applies them to the annotation system. Moreover, error dealing with and logging mechanisms ought to be included to handle any points that come up through the translation course of. By following these steps, builders can create a seamless integration that improves the accessibility of their picture annotation system throughout completely different languages.

Step 1: Set Up Weblate

You possibly can both use Weblate’s hosted model or self-host it in your server.

Choice 1: Use Weblate’s Hosted Service

Choice 2: Self-Host Weblate (Really helpful for Full Management)

Set up Weblate in your server utilizing Docker:

  • Entry Weblate at http://localhost:8080 and create an admin account.

Step 2: Create a Weblate Mission

  1. Log in to Weblate and create a brand new undertaking.
  2. Title it one thing like “Picture Annotation Translations”.
  3. If utilizing Git, join your repository the place translation information are saved.
  4. In any other case, Weblate can retailer translations internally.

Step 3: Add Translation Elements

  1. Click on “Add Element” (e.g., for UI textual content, annotations).
  2. Select the file format your system makes use of (.po, .json, .yaml, .xliff).
  3. Set English (en) because the supply language.
  4. Add French (fr), Arabic (ar), or different goal languages.
  5. Add an present file or let Weblate generate one.

Step 4: Join Weblate API with Python

To automate translation updates, use Weblate’s REST API.

4.1 Get API Credentials

  1. In Weblate, go to Person Settings → API Entry.
  2. Generate an API Token and reserve it securely.

4.2 Set up Requests Library

In the event you haven’t already, set up requests:

4.3 Fetch Present Translations through API

Retrieve present translations for a language:

Step 5: Auto-Translate New Annotations

At any time when a brand new annotation is added, ship it to Weblate for translation.

Step 6: Fetch Translated Annotations & Save to Database

To retrieve translated annotations and retailer them in your system:

Step 7: Automate Translation Synchronization

Choice 1: Weblate Manages Git Repository

  • Join Weblate to your GitHub/GitLab repo.
  • Weblate will auto-commit translations and sync updates.

Choice 2: Guide Export & Import through Python

To obtain translated .json or .po information:

Step 8: Use Translations in Your Software

Modify your Python app to dynamically load translations. Instance utilizing Flask & Babel:

Set up Flask-Babel

Set Up Flask-Babel in Your App

  • Substitute "Welcome to the picture annotation system!" with Weblate-managed translations.

Step 9: Add a Translation Evaluate Characteristic in Admin Panel

If utilizing Django, allow translation evaluation in Django Admin:

✅ Permits handbook translation corrections within the admin panel.

Ultimate Ideas

✅ Automates translation of picture annotations through Weblate API.
✅ Shops translations within the database for retrieval.
✅ Synchronizes with Git or fetches translations through API.
✅ Helps Flask & Django for frontend integration.


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