old_contents: import json
  import os
  import shutil
  from scipy_data_fitting import Plot
  
  def save_example_fit(fit):
      """
      Save fit result to a json file and a plot to an svg file.
      """
      json_directory = os.path.join('examples', 'json')
      plot_directory = os.path.join('examples', 'plots')
      if not os.path.isdir(json_directory): os.makedirs(json_directory)
      if not os.path.isdir(plot_directory): os.makedirs(plot_directory)
  
      fit.to_json(os.path.join(json_directory, fit.name + '.json'), meta=fit.metadata)
  
      plot = Plot(fit)
      plot.save(os.path.join(plot_directory, fit.name + '.svg'))
      plot.close()
  
  def reset_directory(directory):
      """
      Remove `directory` if it exists, then create it if it doesn't exist.
      """
      if os.path.isdir(directory): shutil.rmtree(directory)
      if not os.path.isdir(directory): os.makedirs(directory)
  
new_contents: import json
  import os
  import shutil
  import sys
  
  sys.path.insert(0, os.path.abspath('.'))
  
  from scipy_data_fitting import Plot
  
  def save_example_fit(fit):
      """
      Save fit result to a json file and a plot to an svg file.
      """
      json_directory = os.path.join('examples', 'json')
      plot_directory = os.path.join('examples', 'plots')
      if not os.path.isdir(json_directory): os.makedirs(json_directory)
      if not os.path.isdir(plot_directory): os.makedirs(plot_directory)
  
      fit.to_json(os.path.join(json_directory, fit.name + '.json'), meta=fit.metadata)
  
      plot = Plot(fit)
      plot.save(os.path.join(plot_directory, fit.name + '.svg'))
      plot.close()
  
  def reset_directory(directory):
      """
      Remove `directory` if it exists, then create it if it doesn't exist.
      """
      if os.path.isdir(directory): shutil.rmtree(directory)
      if not os.path.isdir(directory): os.makedirs(directory)
  
subject: Fix examples by adding package to path