+
+import sys
+from allmydata.util.assertutil import precondition
+from allmydata.util.fileutil import abspath_expanduser_unicode
+
+_default_nodedir = None
+if sys.platform == 'win32':
+ from allmydata.windows import registry
+ path = registry.get_base_dir_path()
+ if path:
+ precondition(isinstance(path, unicode), path)
+ _default_nodedir = abspath_expanduser_unicode(path)
+
+if _default_nodedir is None:
+ path = abspath_expanduser_unicode(u"~/.tahoe")
+ precondition(isinstance(path, unicode), path)
+ _default_nodedir = path