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Metadata-Version: 2.1
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Name: python-i18n
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Version: 0.3.9
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Summary: Translation library for Python
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Home-page: https://github.com/tuvistavie/python-i18n
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Author: Daniel Perez
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Author-email: tuvistavie@gmail.com
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License: MIT
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Download-URL: https://github.com/tuvistavie/python-i18n/archive/master.zip
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Platform: UNKNOWN
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Classifier: Development Status :: 4 - Beta
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Classifier: Environment :: Other Environment
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Classifier: Intended Audience :: Developers
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Classifier: License :: OSI Approved :: MIT License
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Classifier: Operating System :: OS Independent
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Classifier: Programming Language :: Python :: 2
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Classifier: Programming Language :: Python :: 3
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Classifier: Topic :: Software Development :: Libraries
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Description-Content-Type: text/markdown
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Provides-Extra: yaml
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Requires-Dist: pyyaml (>=3.10) ; extra == 'yaml'
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# python-i18n [](https://travis-ci.org/danhper/python-i18n) [](https://coveralls.io/github/danhper/python-i18n?branch=master) [](https://codeclimate.com/github/danhper/python-i18n)
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This library provides i18n functionality for Python 3 out of the box. The usage is mostly based on Rails i18n library.
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## Installation
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Just run
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pip install python-i18n
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If you want to use YAML to store your translations, use
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pip install python-i18n[YAML]
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## Usage
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### Basic usage
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The simplest, though not very useful usage would be
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import i18n
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i18n.add_translation('foo', 'bar')
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i18n.t('foo') # bar
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### Using translation files
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YAML and JSON formats are supported to store translations. With the default configuration, if you have the following `foo.en.yml` file
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en:
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hi: Hello world !
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in `/path/to/translations` folder, you simply need to add the folder to the translations path.
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import i18n
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i18n.load_path.append('/path/to/translations')
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i18n.t('foo.hi') # Hello world !
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Please note that YAML format is used as default file format if you have `yaml` module installed.
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If both `yaml` and `json` modules available and you want to use JSON to store translations, explicitly specify that: `i18n.set('file_format', 'json')`
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### Memoization
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Setting the configuration value `enable_memoization` in the settings dir will load the files from disk the first time they
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are loaded and then store their content in memory. On the next use the file content will be provided from memory and not
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loaded from disk, preventing disk access. While this can be useful in some contexts, keep in mind there is no current way of
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issuing a command to the reloader to re-read the files from disk, so if you are updating your translation file without restarting
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the interpreter do not use this option.
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### Namespaces
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#### File namespaces
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In the above example, the translation key is `foo.hi` and not just `hi`. This is because the translation filename format is by default `{namespace}.{locale}.{format}`, so the {namespace} part of the file is used as translation.
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To remove `{namespace}` from filename format please change the `filename_format` configuration.
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i18n.set('filename_format', '{locale}.{format}')
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#### Directory namespaces
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If your files are in subfolders, the foldernames are also used as namespaces, so for example if your translation root path is `/path/to/translations` and you have the file `/path/to/translations/my/app/name/foo.en.yml`, the translation namespace for the file will be `my.app.name` and the file keys will therefore be accessible from `my.app.name.foo.my_key`.
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## Functionalities
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### Placeholder
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You can of course use placeholders in your translations. With the default configuration, the placeholders are used by inserting `%{placeholder_name}` in the ntranslation string. Here is a sample usage.
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i18n.add_translation('hi', 'Hello %{name} !')
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i18n.t('hi', name='Bob') # Hello Bob !
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### Pluralization
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Pluralization is based on Rail i18n module. By passing a `count` variable to your translation, it will be pluralized. The translation value should be a dictionnary with at least the keys `one` and `many`. You can add a `zero` or `few` key when needed, if it is not present `many` will be used instead. Here is a sample usage.
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i18n.add_translation('mail_number', {
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'zero': 'You do not have any mail.',
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'one': 'You have a new mail.',
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'few': 'You only have %{count} mails.',
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'many': 'You have %{count} new mails.'
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})
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i18n.t('mail_number', count=0) # You do not have any mail.
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i18n.t('mail_number', count=1) # You have a new mail.
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i18n.t('mail_number', count=3) # You only have 3 new mails.
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i18n.t('mail_number', count=12) # You have 12 new mails.
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### Fallback
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You can set a fallback which will be used when the key is not found in the default locale.
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i18n.set('locale', 'jp')
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i18n.set('fallback', 'en')
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i18n.add_translation('foo', 'bar', locale='en')
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i18n.t('foo') # bar
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### Skip locale from root
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Sometimes i18n structure file came from another project or not contains root element with locale eg. `en` name.
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{
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"foo": "FooBar"
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}
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However we would like to use this i18n .json file in our Python sub-project or micro service as base file for translations.
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`python-i18n` has special configuration tha is skipping locale eg. `en` root data element from the file.
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i18n.set('skip_locale_root_data', True)
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