old_contents: #!/usr/bin/python
  # -*- coding: utf-8 -*-
  
  import wdbc
  from .log import log
  
  class Environment(dict):
  	def __init__(self, path, files, build):
  		for f in files:
  			try:
  				self[wdbc.getfilename(f)] = wdbc.fopen(path+f, build=build, environment=self)
  			except IOError:
  				log.warning("File %r not found" % (f))
  
new_contents: #!/usr/bin/python
  # -*- coding: utf-8 -*-
  
  from .. import wdbc
  from .log import log
  
  class Environment(dict):
  	def __init__(self, path, files, build):
  		for f in files:
  			try:
  				self[wdbc.getfilename(f)] = wdbc.fopen(path+f, build=build, environment=self)
  			except IOError:
  				log.warning("File %r not found" % (f))
  
subject: Use a relative import