import re
_settings = None
-default_config_file = os.environ['HOME'] + '/.config/arvados/settings.conf'
+if os.environ.get('HOME') != None:
+ default_config_file = os.environ['HOME'] + '/.config/arvados/settings.conf'
+else:
+ default_config_file = ''
EMPTY_BLOCK_LOCATOR = 'd41d8cd98f00b204e9800998ecf8427e+0'