old_contents: #! /usr/bin/env python
  
  """
  Functions for timing other functions/procedures.
  """
  from __future__ import division, print_function
  
  __author__ = 'Carlos Alberto Gomez Gonzalez'
  __all__ = ['time_ini', 'timing', 'time_fin']
  
  from datetime import datetime
  from .utils_conf import sep
  
  def time_ini(verbose=True):
      """Sets and prints the time in which the script started.
      
      Returns
      -------
      start_time : string
          Starting time.
      """
      start_time = datetime.now()
      if verbose:
          print(sep)
          print("Starting time: " + start_time.strftime("%Y-%m-%d %H:%M:%S"))
          print(sep)
      return start_time
  
  
  def timing(start_time):
      """Prints the execution time of a script. It requires the initialization 
      with the function time_ini().
      """
      print("Running time:  " + str(datetime.now()-start_time))
      print(sep)
  
  
  def time_fin(start_time):
      """Returns the execution time of a script. It requires the initialization 
      with the function time_ini().
      """
      return str(datetime.now()-start_time)
  
     
  
new_contents: #! /usr/bin/env python
  
  """
  Functions for timing other functions/procedures.
  """
  from __future__ import division, print_function
  
  __author__ = 'Carlos Alberto Gomez Gonzalez'
  __all__ = ['time_ini', 'timing', 'time_fin']
  
  from datetime import datetime
  from .utils_conf import sep
  
  
  def time_ini(verbose=True):
      """
      Set and print the time at which the script started.
  
      Returns
      -------
      start_time : string
          Starting time.
  
      """
      start_time = datetime.now()
      if verbose:
          print(sep)
          print("Starting time: " + start_time.strftime("%Y-%m-%d %H:%M:%S"))
          print(sep)
      return start_time
  
  
  def timing(start_time):
      """
      Print the execution time of a script.
  
      It requires the initialization  with the function time_ini().
      """
      print("Running time:  " + str(datetime.now()-start_time))
      print(sep)
  
  
  def time_fin(start_time):
      """
      Return the execution time of a script.
  
      It requires the initialization  with the function time_ini().
      """
      return str(datetime.now()-start_time)
  
subject: tidy documentation of conf/timing.py