[PyQt] Providing .qm files with the exe

[Giuseppe Corbelli]

On 30/04/2015 03:51, Jebagnana Das wrote:
> Dear Team,
>
> We are writing a PyQt application with multi language support.
>
> *_Option 1:_*
>
> We are thinking about providing the language (.qm) files separately probably
> within the installation folder of our application exe due to the following reasons
>
> 1. If any new feature is added we can release it right away without waiting
> for the translated strings in 20+ languages. Later when the translation file
> arrives the agent can pull the latest file from the server when it communicates
>
> 2. If any changes or corrections are made in the existing translations it can
> also be instantly applied with the above technique.
>
> But the qm files can be editable and the user can play around with it and can
> replace the original translation with some offensive language with the intent
> of damaging the reputation of the product.

Depending on the permissions. Maybe the user has no root rights on the PC.

> *_Option 2:_*
>
> I read about another option of converting them as a QtResource file and derive
> a python resource file out of it which will be bundled within the exe itself.
> The cons of this approach are
>
> 1. We will be forced to hold the release until all the translated files arrive
> from different translators
>
> 2. If any alterations are made in the existing translations, we need to update
> or provide auto-upgrade for the existing exe to reflect the changes which will
> consume more server and agent bandwidth(in MBs) as opposed to updating only
> the translation files(few KBs) and exe upgrdation is cumbersome and costlier
> when we weigh it with all the inherent complexities involved.
>
> Any solution for resolving this use-case would be highly appreciated.

First, you're talking about "exe". You mean windows only? You want to use 
pyqtdeploy?

QTranslator has a loadFromData which loads translations from an arbitrary 
string buffer. You can encrypt the .qm files and decrypt them before feeding 
the QTranslator(s).

-- 
             Giuseppe Corbelli
WASP Software Engineer, Copan Italia S.p.A
Phone: +390303666318  Fax: +390302659932
E-mail: giuseppe.corbelli at copanitalia.com