Question

I’m having trouble logging the output of an internationalized django variable.

My application code used the ‘message’ vaiable OK and it displays
in English and German (the two languages I am working with)

My problem is when I try to make a log of the said ‘message’ variable output.
I want to log in English and/or German (depending on what the end user is seeing)

I’m using string_concat and it says:

the lazy translations in result will only be converted to strings when result
itself is used in a string (usually at template rendering time).

Here is a code sample:

from django.utils.translation import ugettext_lazy as _
from django.utils.translation import string_concat

message = _('Profile Updated OK')

# Build a log message
fmt_msg = _(message)
log_message = 'Message Sent: '
log_message = string_concat(log_message, fmt_msg)

logger.info(log_message)

The log entry is not translated:

Message Sent: <django.utils.functional.__proxy__ object at 0x9c3c4ac>

Can anyone suggest how I can have the proxy object to be translated
when used with logging?

It’s translating OK in my regular Django code just the logging.info() issue.

Cheers!

Answer 1

From the docs:

The result of a ugettext_lazy() call can be used wherever you would use a unicode string (an object with type unicode) in Python. If you try to use it where a bytestring (a str object) is expected, things will not work as expected, since a ugettext_lazy() object doesn’t know how to convert itself to a bytestring.

Also, don’t call _() twice.

logger.info(u'Message Sent: %s' % message)