models.CharField(max_length should be maxlength. no underscore.

You are using an older packaged version of Django; from Django 1.0 onwards, max_length is correct. Because many, many, many people have attempted to use pre-1.0 versions of Django with the Django 1.0 documentation, please note also that the tutorial contains a section, titled "Errors about max_length", explaining this. If you're using an older version of Django you should use the documentation for the version you're using (Version 0.96, Version 0.95), but if you're just starting out with Django it is highly recommended you begin with the current Django release (1.0.2), since that is the version which will be forward-compatible, whereas pre-1.0 Django versions are not compatible with the Django 1.x release series and will involve serious upgrade headaches for you later on.

Also, please in the future search the ticket tracker for existing reports before filing a new one; this report is a duplicate of #8922, #8199, #8722, #7253, #7007, #6457, #5325, #5259, #5254, #5252, #5240, #5210, #5209, #5194, #5184, #5162, #5159, #5144, #5119 and #5117.