old_contents: import os
  from . import __path__
  import warnings
  #warnings.warn("using temporary MPLD3_URL: switch to ghpages ASAP!")
  
  __all__ = ["D3_URL", "MPLD3_URL", "D3_LOCAL", "MPLD3_LOCAL"]
  
  D3_URL = "http://d3js.org/d3.v3.min.js"
  
  MPLD3_URL = "http://mpld3.github.io/js/mpld3.v0.1.js
  
  D3_LOCAL = os.path.join(__path__[0], "js", "d3.v3.min.js")
  
  MPLD3_LOCAL = os.path.join(__path__[0], "js", "mpld3.v0.1.js")
  
new_contents: import os
  from . import __path__
  import warnings
  #warnings.warn("using temporary MPLD3_URL: switch to ghpages ASAP!")
  
  __all__ = ["D3_URL", "MPLD3_URL", "D3_LOCAL", "MPLD3_LOCAL"]
  
  D3_URL = "http://d3js.org/d3.v3.min.js"
  
  MPLD3_URL = "http://mpld3.github.io/js/mpld3.v0.1.js"
  
  D3_LOCAL = os.path.join(__path__[0], "js", "d3.v3.min.js")
  
  MPLD3_LOCAL = os.path.join(__path__[0], "js", "mpld3.v0.1.js")
  
subject: add missing quotation