old_contents: try:
      from pysb_assembler import PysbAssembler
  except ImportError:
      pass
  try:
      from graph_assembler import GraphAssembler
  except ImportError:
      pass
  try:
      from sif_assembler import SifAssembler
  except ImportError:
      pass
  try:
      from cx_assembler import CxAssembler
  except ImportError:
      pass
  try:
      from english_assembler import EnglishAssembler
  except ImportError:
      pass
  try:
      from sbgn_assembler import SBGNAssembler
  except ImportError:
      pass
  try:
      from index_card_assembler import IndexCardAssembler
  except ImportError:
      pass
  
new_contents: try:
      from indra.assemblers.pysb_assembler import PysbAssembler
  except ImportError:
      pass
  try:
      from indra.assemblers.graph_assembler import GraphAssembler
  except ImportError:
      pass
  try:
      from indra.assemblers.sif_assembler import SifAssembler
  except ImportError:
      pass
  try:
      from indra.assemblers.cx_assembler import CxAssembler
  except ImportError:
      pass
  try:
      from indra.assemblers.english_assembler import EnglishAssembler
  except ImportError:
      pass
  try:
      from indra.assemblers.sbgn_assembler import SBGNAssembler
  except ImportError:
      pass
  try:
      from indra.assemblers.index_card_assembler import IndexCardAssembler
  except ImportError:
      pass
  
subject: Update to absolute imports in assemblers