Django's unicdoe encode error

It's a common and ugly problem when using non-ascii characters in Django.

The general solution is below,

  1. put # -- coding: utf-8 -- at beginning of every python source files that are using utf-8 characters
  2. declare every string variable as unicode, such as str_var = u'中文字符'
  3. add a __unicode__ method in your model classes
  4. if you are running server on apache/mod_wsgi or ngnix, you need configure web server to use utf-8 encoding