Question

How to use locale directory from include package and locale directory in my own project.

My main function

settings = dict(settings)
settings.setdefault('jinja2.i18n.domain', 'mypackage1, mypackage2') #NOT WORK!!!

config.include("mypackage1")
config.add_jinja2_search_path(("mypackage1:templates",
                               "mypackage2:templates"))

config.add_translation_dirs("mypackage1:locale/",
                            "mypackage2:locale/")
config.add_jinja2_search_path(("mypackage1:templates",
                               "mypackage2:templates"))

return config.make_wsgi_app()

Answer 1

You might have misunderstood what the context it. To quote the pyramid glossary :

A string representing the “context” in which a translation was made.
For example the word “java” might be translated differently if the
translation domain is “programming-languages” than would be if the
translation domain was “coffee”. A translation domain is represnted by
a collection of .mo files within one or more translation directory
directories.

It’s not possible to cumulate contexts by setting it to something like ‘mypackage1, mypackage2’. What you need to do is make sure that all translation dirs have the same domain, set it in the configuration and call add_translation_dirs with the multiple dirs.