Skip to main content

doublespeak

Doublespeak lets you extract translateable messages in Javascript into separate PO files and then lets you compile them to JSON files that can for example be used with gettext.js

Motivation

Many modern Python web applications also include a significant amount of translatable strings in Javascript.

Because this Javascript code runs in the browser, instead of on the server where the Python code runs, it’s necessary to have its translateable messages in separate gettext PO files, from which you can then generate JSON/Javascript translation files to load in your browser.

Unfortunately, Babel, which provides distutils commands to create messages catalogs, and extract and compile messages, doesn’t allow you to create different catalogs for the same language in one package.

Doublespeak lets you do this, by providing new Babel/distutils commands that you can use to extract translateable messages from Javascript, and keep them separatele from the rest of your application’s translations.

New distutils commands:

The new distutils commands made available by doublespeak, are:

  • init_js_catalog - Initialize a new gettext catalog, specifically for JS messages.

  • extract_js_messages - Extract messages from JS and put them in the catalog.

  • update_js_catalog - Update an existing catalog with messages from newer JS code.

  • compile_js_catalog - Create the compiled .mo and JSON files from the .po files

Users of Babel, will notice that these commands are very similar to the ones provided by Babel:

  • init_catalog

  • extract_messages

  • update_catalog

  • compile_catalog

Some of the doublespeak commands are simply wrappers around Babel commands. The benefit they provide is that you can configure them independently from the Babel commands, for example in your setup.cfg file.

Configuration

Here’s an example setup.cfg file, which demonstrates how you can configure the standard Babel commands and the new Doublespeak commands:

[compile_catalog]
# Change to a relevant domain
domain = mypackage
directory = src/mypackage/i18n/locales

[compile_js_catalog]
# Note that the Javascript files have a different domain. You'll need to use
# this domain in your Javascript code, instead of using the domain above,
# declared for the Python code.
domain = mypackagejs
# Contrary to compile_catalog, this commands takes both input and output
directories, so that you can write the JSON translation files to a separate
directory, where you might have the rest of your Javascript code.
input_dir = src/mypackage/i18n/locales
output_dir = src/mypackage/browser/resources/js/i18n

[extract_messages]
# Change to your organisation
copyright_holder = Acme Inc.
output_file = src/mypackage/i18n/locales/en/LC_MESSAGES/mypackage.po
charset = UTF-8
add-comments = i18n

[extract_js_messages]
keywords = __
no-default-keywords = True
copyright_holder = Acme Inc.
output_file = src/mypackage/i18n/locales/en/LC_MESSAGES/mypackagejs.po
charset = UTF-8
add-comments = i18n

[init_catalog]
domain = mypackage
input_file = src/mypackage/i18n/locales/en/LC_MESSAGES/mypackage.po
output_dir = src/mypackage/i18n/locales

[init_js_catalog]
domain = mypackagejs
input_file = src/mypackage/i18n/locales/en/LC_MESSAGES/mypackagejs.po
output_dir = src/mypackage/i18n/locales

[update_catalog]
domain = mypackage
input_file = src/mypackage/i18n/locales/en/LC_MESSAGES/mypackage.po
output_dir = src/mypackage/i18n/locales

[update_js_catalog]
domain = mypackagejs
input_file = src/mypackage/i18n/locales/en/LC_MESSAGES/mypackagejs.po
output_dir = src/mypackage/i18n/locales

Changes

0.3 (2016-03-07)

  • The output file javascript is jshint happy now.

0.2 (2016-03-04)

  • Simplify the generated Javascript translations files.

  • Add the “output-prefix” option to prefix the filenames of generated language .js files, defaults to ‘’.

  • Add ‘statistics’ and ‘use-fuzzy’ to be on par with Babel’s compile_catalog.

  • Build js files based on .po files instead of .mo files.

0.1 (2016-02-26)

  • Initial release.

Release files for doublespeak 0.3

For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.

Source distribution (sdist)

Source distribution for doublespeak 0.3
File Size Uploaded
doublespeak-0.3.tar.gz 6.4 kB Details

Release files / doublespeak-0.3.tar.gz

Download URL doublespeak-0.3.tar.gz
Size 6.4 kB
Tags Source
SHA-256 checksum
How to use checksums
0da58fb20a2da5fd8e9b6d87fed5ca7cf77ffdfa83d0189e2e3a45ab2f90c5a0
BLAKE2b-256 checksum
How to use checksums
ec504f94e438a54d1d77a13d2e6c2a95fac9635dc8bf169d5132e7158a2c590e
Upload date
Uploaded using Trusted Publishing?
What is trusted publishing?
No

Release history Release notifications | RSS feed

This release

0.3 This release

1 release file

0.2

1 release file

0.1

Anthropic, PBC Visionary sponsor Bloomberg Visionary sponsor Hudson River Trading Visionary sponsor Meta Visionary sponsor NVIDIA Visionary sponsor Microsoft Sustainability sponsor Depot Continuous Integration AWS Cloud computing and Security Sponsor Datadog Monitoring Fastly CDN Google Download Analytics Sentry Error logging StatusPage Status page