Cannot import name MY_CACHE_HOME

[David D Lowe]

Running on Arch Linux, this exception was thrown:

Traceback (most recent call last):
  File "/usr/lib/python2.6/site-packages/epidermis/epidermis.py", line 39, in <module>
    from const import logger, MY_CACHE_HOME, MY_DATA_HOME, PIGMENT_TYPES
ImportError: cannot import name MY_CACHE_HOME

[Graham Rogers (grogers3-14)]

Use pyxdg:

import xdg.BaseDirectory, os

MY_CACHE_HOME = os.path.join(xdg.BaseDirectory.xdg_cache_home, 'epidermis')
MY_CONFIG_HOME = xdg.BaseDirectory.save_config_path('epidermis')
MY_DATA_HOME = xdg.BaseDirectory.save_data_path('epidermis')