Cannot install in MAC OS Lion

To be honest: I don't know as I have no way of testing this. However,
previous versions used to run on Mac.

I like the RedNoteBook, it is simple, straight forward and able to work across different OS platforms. Unfortunately, I'm not at in front of my MacBook now, perhaps I will paste the error message here later.

This is the error message I received:

ERROR Locale could not be set: "unsupported locale setting"
> ERROR Probably you have to install the appropriate language packs
>
> (process:915): Gtk-WARNING **: Locale not supported by C library.
> Using the fallback 'C' locale.
> INFO chardet not found. 'utf-8' encoding will be assumed
>

Those messages are no indicator of something going wrong. They just mean
that RedNotebook will be in English.

Dear Jendrik,

Thanks for the prompt replied.

When I execute the RedNoteBook in Ubuntu and Windows, the RedNoteBook GUI
will launches and I could have my journal/diary written accordingly. I
execute RedNoteBook via Terminal in Mac OS X. But, still I receive the
(error) messages and no RedNoteBook GUI is launched.

ERROR Locale could not be set: "unsupported locale setting"
> ERROR Probably you have to install the appropriate language packs
>
> (process:1021): Gtk-WARNING **: Locale not supported by C library.
> Using the fallback 'C' locale.
> INFO chardet not found. 'utf-8' encoding will be assumed
> INFO Writing log to file "/Users/KJ/.rednotebook/rednotebook.log"
> Traceback (most recent call last):
> File "/opt/local/bin/rednotebook", line 11, in <module>
> import rednotebook.journal
> File
> "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/rednotebook/journal.py",
> line 198, in <module>
> from rednotebook.gui.main_window import MainWindow
> File
> "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/rednotebook/gui/main_window.py",
> line 33, in <module>
> from rednotebook import templates
> File
> "/opt/local/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/rednotebook/templates.py",
> line 31, in <module>
> WEEKDAYS = (_('Monday'), _('Tuesday'), _('Wednesday'), _('Thursday'),
> NameError: name '_' is not defined
>

Do I need do more steps in Mac OS X?

Thanks for your time. Have a nice day.

Dear Jendrik Seipp,

Thanks for your prompt replied.

Sure, I will try it and give the feedback later.

Thanks a lot.

Dear Jendrik Seipp,

I'm sorry for being late to give my feedback. It works nicely in Mac OS X
Lion. Thanks for the fixed.

Have a nice summer.

Thanks Jendrik Seipp, that solved my question.