old_contents: from arches.app.models.models import VwExportNodes as Nodes
  from arches.app.models.models import VwExportEdges as Edges
  import csv
  from pprint import pprint as pp
  import os
  import ipdb
  
  def export(export_dir):
      """
      Exports existing graphs as Gephi nodes and edges files to a directory
      """
      write_nodes(export_dir)
      write_edges(export_dir)
  
  def write_nodes(export_dir):
      nodes = Nodes.objects.all()
      entitytypeids = {}
      for node in nodes:
          if node.assettype not in entitytypeids:
              entitytypeids[node.assettype] = []
          entitytypeids[node.assettype].append([node.id,node.label,node.mergenode,node.businesstablename])
  
      for k, v in entitytypeids.iteritems():
          with open(os.path.join(export_dir, k + '_nodes.csv'), 'w') as csvfile:
              writer = csv.writer(csvfile, delimiter= ',')
              writer.writerow(['Id','Label','mergenode','businesstablename'])
              writer.writerow([k+':'+k,k,k,''])
              for node in v:
                  writer.writerow(node)
  
  def write_edges(export_dir):
      edges = Edges.objects.all()
      entitytypeids = {}
      for edge in edges:
          if edge.assettype not in entitytypeids:
              entitytypeids[edge.assettype] = []
          entitytypeids[edge.assettype].append([edge.source,edge.target,"Directed",edge.target,edge.label,1.0])
  
      for k, v in entitytypeids.iteritems():
          with open(os.path.join(export_dir, k + '_edges.csv'), 'w') as csvfile:
              writer = csv.writer(csvfile, delimiter= ',')
              writer.writerow(['Source','Target','Type','Id','Label','Weight'])
              for node in v:
                  writer.writerow(node)
new_contents: from arches.app.models.models import VwExportNodes as Nodes
  from arches.app.models.models import VwExportEdges as Edges
  import csv
  from pprint import pprint as pp
  import os
  
  def export(export_dir):
      """
      Exports existing graphs as Gephi nodes and edges files to a directory
      """
      write_nodes(export_dir)
      write_edges(export_dir)
  
  def write_nodes(export_dir):
      nodes = Nodes.objects.all()
      entitytypeids = {}
      for node in nodes:
          if node.assettype not in entitytypeids:
              entitytypeids[node.assettype] = []
          entitytypeids[node.assettype].append([node.id,node.label,node.mergenode,node.businesstablename])
  
      for k, v in entitytypeids.iteritems():
          with open(os.path.join(export_dir, k + '_nodes.csv'), 'w') as csvfile:
              writer = csv.writer(csvfile, delimiter= ',')
              writer.writerow(['Id','Label','mergenode','businesstablename'])
              writer.writerow([k+':'+k,k,k,''])
              for node in v:
                  writer.writerow(node)
  
  def write_edges(export_dir):
      edges = Edges.objects.all()
      entitytypeids = {}
      for edge in edges:
          if edge.assettype not in entitytypeids:
              entitytypeids[edge.assettype] = []
          entitytypeids[edge.assettype].append([edge.source,edge.target,"Directed",edge.target,edge.label,1.0])
  
      for k, v in entitytypeids.iteritems():
          with open(os.path.join(export_dir, k + '_edges.csv'), 'w') as csvfile:
              writer = csv.writer(csvfile, delimiter= ',')
              writer.writerow(['Source','Target','Type','Id','Label','Weight'])
              for node in v:
                  writer.writerow(node)
subject: Remove ipdb import from exporter.py