# l10n
A library and CLI for translating Python applications and libraries.
Our main design principle is "Simple things should be simple, complex things should be possible". We streamline the workflow that fits 95% of the projects and allow to configure every small detail to make it possible to fit the remaining 5%. Think about l10n as a high-level and friendly library comparing to low-level and less friendly [locale](https://docs.python.org/3/library/locale.html), [gettext](https://docs.python.org/3/library/gettext.html), and [babel](https://babel.pocoo.org/en/latest/).
Features:
+ **Simple**. We stripped away all unnecessary steps and concepts. All that's left is what is actually relevant for Python.
+ **Type-safe**. All other tools match translation.
+ **Explicit**. No global state, no variable injection. You know exactly what gets translated and to what language.
+ **Zero-dependency runtime**. There are a few small dependencies for CLI but they get installed only on your dev environment. On the production goes only one small library, l10n itself.
+ **Pure Python**. You can use it with PyPy, Numba, and any other interpreter.
+ **Zero configuration**. The tool knows about the modern Python packaging and automatically discovers the project structure, name, version, and all other relevant metadata.
+ **Well documented**. We make sure that you can pick up the tool without any prior knowledge of the topic.
+ **Compatible with other tools**. We use `*.po` and `*.mo` files that are compatible with [gettext](https://www.gnu.org/software/gettext/) toolchain and all other translation tools.
+ **Self-sufficient, no other tools required**.
+ **Asyncio-compatible and race-condition-free**.
+ **Fast**. All teanslations on the production are compiled into a small and fast binary format.
+ **Small**. We don't include any generated data into the library distribution. Just a little of Python code.
+ **Lazy**. Any data is loaded only when you need it.
+ **Can be used in libraries**. The compiled translations are automatically placed next to your Python code and discovered at runtime.
+ **Versatile**. Most of the libraries in the wild are focused on web applications. This library fits any Python project.
## l10n in 30 seconds
Install l10n:
```bash
python3 -m pip install 'l10n[cli]'
```
And there are all the changes you need to do in your code to support translations for a string:
```python
from l10n import Locales
locales = Locales()
def say_hello(lang='en'):
loc = locales[lang]
msg = loc.get('Hello, world!')
print(msg)
```
Now, let's translate it to Ukrainian:
1. Extract all strings from the code that need to be translated:
```bash
python3 -m l10n extract --lang uk
```
1. Translate all extracted strings using Google Translate:
```bash
python3 -m l10n translate
```
1. Compile all translations into the binary format:
```bash
python3 -m l10n compile
```
That's all! Now, your code supports translations:
```python
from example import say_hello
say_hello(lang='uk')
# Привіт Світ!
```
If you want to manually adjust the translation text, just edit the `languages/en.po` file and run `compile` again. You don't even need to restart your app!
**Read more in the documentation:** [l10n.orsinium.dev](https://l10n.orsinium.dev/).
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