When I try to view the databases in mysql i get this error:
ERROR 1018 (HY000): Can't read dir of '.' (errno: 13)
My django debugger says:
(2002, "Can't connect to local MySQL server through socket '/var/lib/mysql/my_database' (13)")
Here is my settings file :
DATABASES = {
'default': {
    'ENGINE': 'django.db.backends.mysql', # Add 'postgresql_psycopg2', 'mysql', 'sqlite3' or 'oracle'.
    'NAME': 'my_database',                      # Or path to database file if using sqlite3.
    'USER': 'root',                      # Not used with sqlite3.
    'PASSWORD': '****',                  # Not used with sqlite3.
    'HOST': '',                      # Set to empty string for localhost. Not used with sqlite3.
    'PORT': '3306',                      # Set to empty string for default. Not used with sqlite3.
What can cause the problem?