"""Graph model and operations
"""
# Coding: utf-8
# Filename: graph.py
# Created: 2016-07-16
# Description:
## v0.0: File created

from __future__ import print_function
from __future__ import division
from __future__ import absolute_import

import logging
import random
import os
import itertools
import multiprocessing

import Motif

from time import time

LOGFORMAT = "%(asctime)s %(levelname)s "
            "%(filename)s: %(lineno)s %(message)s"

__author__ = "Hoang Nguyen"
__email__ = "hoangnt@ai.cs.titech.ac.jp"

# >>> BEGIN CLASS 'node' <<<
class node(default_dict):

# === END CLASS 'node' ===

# >>> BEGIN CLASS 'graph' <<<
class Graph(default_dict):
  """Graph contains nodes stored as hash map
  """
  def __init__(self):
    """
    Create a graph as default_dict with default
    mapping to an empty list.
    
    Parameters
    ----------
      self: The object itself.

    Returns
    -------
      none.

    Effect
    ------
      Create a Graph object which is a default
      dictionary with default factor generate
      a dictionary mapping ids to node instances
    """
    super(Graph, self).__init__(dict)

  def nodes(self):
    return self.keys() 

  def iterator_nodes(self):
    return self.iteritems()

  def subgraph(self, node_ids = []):
    """
    Create and return a Graph instance as a subgraph
    of this Graph object.
    
    Parameters
    ----------
      node_ids: list of nodes ids in the subgraph

    Returns
    -------
      subgraph: A copy of Graph contains only nodes
                in node_ids list.
    """
    subgraph = Graph()
    for n in node_ids:
      if n in self:
        subgraph[n] = self.getnode(x)

  

# === END CLASS 'graph' ===




@@ -554,24 +554,16 @@
 ss node(
-default_
 dict):%0A%0A
@@ -632,23 +632,16 @@
 s Graph(
-default
 _dict):%0A
@@ -655,67 +655,94 @@
 aph 
-contains nodes stored as hash map%0A  %22%22%22%0A  def __init__(self
+is a dictionary contains nodes%0A  %22%22%22%0A  def __init__(self, directed=False, name='graph'
 ):%0A 
@@ -891,16 +891,116 @@
  itself.
+%0A      name: Name string of the graph. (optional)%0A      directed: Directed or undirected. (optional)
 %0A%0A    Re
@@ -1193,16 +1193,97 @@
 nstances
+%0A%0A    Examples%0A    --------%0A      citeseer = Graph()%0A      citeseer%5B20%5D = %5B1,3,4%5D
 %0A    %22%22%22
@@ -1319,74 +1319,112 @@
 t__(
-dict
 )%0A
-%0A
   
-def nodes(self):%0A    return self.keys() %0A%0A  def iterator_
+  self._name = name%0A    self._logger = logging.getLogger(name)%0A    self._directed = directed%0A%0A  def 
 node
@@ -1452,19 +1452,15 @@
 elf.
-iteritem
+key
 s()
+ 
 %0A%0A  
@@ -1483,19 +1483,20 @@
 f, node_
-ids
+list
  = %5B%5D):%0A
@@ -1818,16 +1818,22 @@
    for n
+ode_id
  in node
@@ -1833,19 +1833,20 @@
 in node_
-ids
+list
 :%0A      
@@ -1849,16 +1849,22 @@
     if n
+ode_id
  in self
@@ -1887,27 +1887,110 @@
 ph%5Bn
-%5D = self.getnode(x)
+ode_id%5D = %5Bn for n in self%5Bnode_id%5D if n in node_list%5D%0A    return subgraph%0A  %0A  def volume(self):%0A    
 %0A%0A  
@@ -2019,11 +2019,8 @@
 ph' ===%0A
-%0A%0A%0A

change defaultdict to dict