Relatorio: How to locale-format a Python Decimal and preserve its precision?

[htgoebel (Hartmut Goebel)]

When using relatorio outside of tryton, I want to locale-format Python Decimals. How can this be done?

Notes:

1. This stackoverflow answer shows a nice solution: {0:n}'.format(d) (after setting the locale, of course)
2. I tried to find how to use this in relatorio or genshi, but the genshi documentation does not actually explain how “variables” are resolved by the template engine. (At least I was not able to spot it).

[pokoli (Sergi Almacellas Abellana)]

Tryton reports have some helper functions which you can use to format deciaml or floats using the locale of a language.

If you do not set any language it will use the language of the current user.

[ced (Cédric Krier)]

The question was about Relatorio without Tryton.

@htgoebel

When using relatorio outside of tryton, I want to locale-format Python Decimals. How can this be done?

You need to use the available tools of Python like locale.format ( setting locale is not threadsafe). Or you need to use third-party library like Babel.

@htgoebel

how “variables” are resolved by the template engine

With the keyword argument passed to the report instance as context.

[htgoebel (Hartmut Goebel)]

@ced

You need to use the available tools of Python like locale.format ( setting locale is not threadsafe). Or you need to use third-party library like Babel.

Do I understand correctly: The values have to be formatted by the model, relatorio can’t do this.