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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

1.20.0 - 2024-11-15

Added

  • Added model_type option to translate_text() to use models with higher translation quality (available for some language pairs), or better latency. Options are 'quality_optimized', 'latency_optimized', and 'prefer_quality_optimized'
  • Added the model_type_used field to translate_text() response, that indicates the translation model used when the model_type option is specified.

1.19.1 - 2024-09-17

Fixed

  • Fixed typing issues, black-formatting and a test case failure.

1.19.0 - 2024-09-17

Added

  • Added billed_characters to response from translate_text().

1.18.0 - 2024-04-26

Added

  • New language available: Arabic ('ar'). Add language code constants and tests. Arabic is currently supported only for text translation; document translation support for Arabic is coming soon.

    Note: older library versions also support the new language, this update only adds new code constants.

  • Added a section in the readme on how to configure retry options in http_client.py

1.17.0 - 2024-02-06

Added

  • Added output_format parameter for document upload function, that indicates the file extension of the desired file format for the translated document.
  • Added basic usage example of the library

Fixed

  • Fixed typechecking errors when using mypy's strict mode

1.16.1 - 2023-11-07

Fixed

  • Fixed typo in error message when no auth key is provided.
  • Removed dependency on packaging by replacing version comparison.

1.16.0 - 2023-11-03

Added

  • Add optional context parameter for text translation, that specifies additional context to influence translations, that is not translated itself.

Changed

  • Added notice in Readme that starting in 2024 the library will drop support for Python versions that are officially end-of-life.
  • DeepL API calls now send requests with JSON-encoded bodies where possible.

Fixed

  • Catch failures while constructing the user agent string.
  • Added py.typed to the package so that our package is typed for our users.
  • Fixed most type errors in the package.

1.15.0 - 2023-06-09

Fixed

  • Removed CHANGELOG.md and SECURITY.md from the python package. The LICENSE file is no longer installed, but still included in package tarball and wheel files.
  • Fix a dependency error in our CI by updating to a higher poetry version in most cases.
  • Fix getUsage request to be a HTTP GET request, not POST.
  • Change document translation to poll the server every 5 seconds. This should greatly reduce observed document translation processing time.

1.14.0 - 2023-02-21

Added

  • Add example to translate JSON inputs.
  • Added platform and python version information to the user-agent string that is sent with API calls, along with an opt-out.
  • Added method for applications that use this library to identify themselves in API requests they make.
  • Added verify_ssl option to Translator to control underlying requests session.

1.13.0 - 2023-01-26

Added

  • Add example script to translate Mustache templates.

  • Add support for storing your API Key in a keyring via the keyring module.

  • Added a CI check for copyright headers.

  • New languages available: Korean ('ko') and Norwegian (bokmål) ('nb'). Add language code constants and tests.

    Note: older library versions also support the new languages, this update only adds new code constants.

Changed

Deprecated

Removed

Fixed

  • Copyright headers are updated for 2023

Security

  • Update certifi to resolve security advisory.
    • certifi is a development-only dependency; library users are unaffected.

1.12.0 - 2023-01-09

Added

  • State explicitly that this library supports Python 3.11.
  • Added the should_retry and http_status_code properties to all exceptions thrown by the library.

Fixed

  • Fix py dependency by upgrading pytest version to 7.2.0 for Python 3.7+. For Python 3.6 tests pytest needs to be added manually.
  • Remove unused tox dependency.
  • Update coverage dependency.
  • Also send options in API requests even if they are default values.

1.11.0 - 2022-09-26

Added

  • Add formality options PREFER_LESS and PREFER_MORE.

Changed

  • Requests resulting in 503 Service Unavailable errors are now retried. Attempting to download a document before translation is completed will now wait and retry (up to 5 times by default), rather than raising an exception.

1.10.0 - 2022-09-09

Added

  • New language available: Ukrainian ('uk'). Add language code constant and tests.

    Note: older library versions also support new languages, this update only adds new code constant.

Changed

  • Add note and workaround to README about Poetry error on Ubuntu 22.04.

1.9.0 - 2022-07-07

Added

  • Add Translator.create_glossary_from_csv() allowing glossaries downloaded from website to be easily uploaded to API.

1.8.0 - 2022-06-10

Added

  • Optional filename parameter added to Translator.translate_document(), only required if uploading string or bytes containing file content.

Changed

  • Update contributing guidelines, we can now accept Pull Requests.

Fixed

  • Fix GitLab CI config.

1.7.0 - 2022-05-18

Added

  • New languages available: Indonesian ('id') and Turkish ('tr'). Add language code constants and tests.

    Note: older library versions also support the new languages, this update only adds new code constants.

  • Add limit_reached and any_limit_reached properties to Usage object returned by get_usage().

  • Add Translator.translate_document_wait_until_done() to poll translation status until translation is complete or fails.

  • Add auth_key_is_free_account() utility function.

Changed

  • Improve readme usage examples.

Deprecated

  • Deprecate limit_exceeded and any_limit_exceeded properties of Usage object returned by get_usage(), use limit_reached and any_limit_reached instead.

1.6.0 - 2022-04-12

Added

  • Add error_message property to DocumentStatus, describing the error in case of document translation failure.

Changed

  • Improve error message if translate_text_with_glossary is called without an instance of GlossaryInfo.
  • translate_document and translate_document_from_filepath return final DocumentStatus, allowing the number of billed characters to be queried.

1.5.1 - 2022-04-11

Fixed

  • Fix bug in CLI languages command causing some target languages to be omitted.
  • Fix some tests that intermittently failed.

1.5.0 - 2022-02-28

Added

  • Add support for HTML tag handling in translate_text().

Deprecated

  • DocumentTranslationException.document_request is deprecated, use document_handle instead.

1.4.1 - 2022-02-04

Fixed

  • Fix bug in DocumentTranslationException stringize function.

1.4.0 - 2022-01-19

Added

  • Add contribution guidelines -- currently we are unable to accept Pull Requests.
  • Add --glossary-id argument for CLI document command.

Changed

  • Improve README.
  • Raise DocumentNotReadyException when attempting to download a document before it has been translated. Previously the base class DeepLException was thrown.

Fixed

  • Add optional filename argument to translate_document_upload() to fix uploading file content as string or bytes.

1.3.1 - 2021-11-15

Changed

  • Limit document status update wait time to 60 seconds, and log wait times.

1.3.0 - 2021-11-15

Note: the PyPI package for 1.3.0 included changes from 1.3.1, so it has been yanked.

Added

  • Add glossary support for document translation.
  • Add proxy support.

Fixed

  • Fix issues with parallelized tests by changing how test glossaries are created and deleted.

1.2.1 - 2021-10-19

Added

  • Add support for Python 3.10.

Fixed

  • Fix bug that caused User-Agent header to be omitted from HTTP requests.
  • Fix glossary name prefix used in unit-tests to match git repository name.
  • Add workaround for possible issue in datetime.strptime in Python 3.6.

1.2.0 - 2021-10-07

Added

  • Add Translator.get_glossary_languages() to query language pairs supported for glossaries.
  • Add constants for all supported languages codes, for example: Language.GERMAN.

Changed

  • Internal language caching and client-side checking of language codes are removed.

Deprecated

  • Some optional arguments related to language caching are now deprecated, and will be removed in a future version:
    • Translator(): the skip_language_check argument
    • Translator.get_source_languages() and Translator.get_target_languages(): the skip_cache argument

Fixed

  • Fix HTTP request retries for document uploads.

1.1.3 - 2021-09-27

Changed

  • Loosen requirement for requests to 2.0 or higher.

1.1.2 - 2021-09-21

Changed

  • Improve request exception messages and include exception stacktraces.
  • Update unit tests for server error message changes.

1.1.1 - 2021-09-13

Fixed

  • Fix typing.List issue on Python 3.6.
  • Add workaround for datetime.strptime bug in Python 3.6.

1.1.0 - 2021-09-13

Added

  • Add security policy.
  • Add support for glossary API functions.

Fixed

  • README and comments improvements, type hints and other minor fixes.

1.0.1 - 2021-08-13

Added

  • Add explicit copyright notice to all source files.

Fixed

  • Force response encoding to UTF-8 to avoid issues with older versions of requests package.

1.0.0 - 2021-08-12

Changed

  • All API calls use Authorization header instead of auth_key parameter.

0.4.1 - 2021-08-10

Changed

  • Minor updates to pyproject.toml and README.md.

0.4.0 - 2021-08-05

Version increased to avoid conflicts with old packages on PyPI.

0.3.0 - 2021-08-05

Added

  • Package uploaded to PyPI. Thanks to Adrian Freund for transferring the deepl package name.
  • Clarify minimum version of requests module to 2.18.

0.2.0 - 2021-07-28

Changed

  • Improve exception hierarchy.
  • Translator() server_url argument works with and without trailing slash.
  • Translator.translate_text() accepts a single text argument, which may be a list or other iterable.

Fixed

  • Fix examples in readme to match function interface changes.

0.1.0 - 2021-07-26

Initial version.