1  # Remove all the .pyc files under ../Lib.
       2  
       3  
       4  def deltree(root):
       5      import os
       6      from os.path import join
       7  
       8      npyc = 0
       9      for root, dirs, files in os.walk(root):
      10          for name in files:
      11              # to be thorough
      12              if name.endswith(('.pyc', '.pyo')):
      13                  npyc += 1
      14                  os.remove(join(root, name))
      15  
      16      return npyc
      17  
      18  npyc = deltree("../Lib")
      19  print(npyc, ".pyc deleted")