Add new method "Session.get_default_name()"

docs/changes.rst

@@ -29,6 +29,8 @@ To be released.
   :class:`~libearth.feed.Text` type.
   The :func:`~libearth.sanitizer.sanitize_html()` function became to
   additionally require ``base_uri`` parameter.
+- Added :meth:`~libearth.session.Session.get_default_name()` for default
+  session name.
 
 
 Version 0.3.3

libearth/session.py

@@ -22,6 +22,7 @@
 """
 import collections
 import datetime
+import platform
 import re
 import uuid
 import xml.sax
@@ -72,7 +73,7 @@ def __new__(cls, identifier=None):
         if not (identifier is None or isinstance(identifier, string_type)):
             raise TypeError('identifier must be a string, not ' +
                             repr(identifier))
-        identifier = str(identifier) if identifier else str(uuid.getnode())
+        identifier = str(identifier) if identifier else cls.get_default_name()
         if not cls.IDENTIFIER_PATTERN.match(identifier):
             raise ValueError('invalid identifier format: ' + repr(identifier))
         try:
@@ -92,6 +93,15 @@ def __ne__(self, other):
     def __hash__(self):
         return hash(self.identifier)
 
+    @staticmethod
+    def get_default_name():
+        """Create default session name.
+
+        :return: Default session name formatted as "Hostname-UUID".
+        :rtype: :class:`str`
+        """
+        return '{0}-{1}'.format(platform.node(), uuid.getnode())
+
     def revise(self, document):
         """Mark the given ``document`` as the latest revision of the current
         session.