[Tutor] Copy files

[David Holland]

Alan,
  
  Thanks for that.  I had the wrong file names, now it works, in  case anyone is interested here is the code.  I use it because at  work I need to change different versions of sqlnet.ora :-
  
  def compare_files(file_name1, file_name2):
      x = filecmp.cmp (file_name1, file_name2)
      print x
      return x
  
  def change_files(file_1, file_2, cwd):
      yesorno = raw_input("Do you want them to be the same Y or N ")
      #file_1 = cwd+file_1
      #file_2 = cwd+file_2
      yesorno = string.upper(yesorno)
      if yesorno == 'Y':
          try:
              os.remove(file_2)
              print "removed file 2"
          except:
              print "could not remove file"
      
          try:
              shutil.copy(file_1, file_2)
              print "the copy part thinks it worked"
          except:
              print "it did not work"
      else:
          print "ok not changing anything"
  def did_it_work(file_1, file_2):
      #this is to debug the copy,only run if you are having problems
      afterchange = compare_files(file_1,file_2 )
      if afterchange == True:
          print "the copy went fine"
      else:
          print "problem with the copy" + str(afterchange)
  #main
  import shutil
  import string
  import filecmp
  import os
  a = os.getcwd()
  print a
  file1 = "SQLNETpersonal.ORA"
  file2 = "SQLNETclients.ORA"
  file3 = "SQLNET.ORA"
  x = compare_files(file1,file3 )
  if x == False:
      print file1 + " and "+ file3+  " are different"
      #print  "test1 and test3 are different"
      change_files(file1, file3,a)
      #did_it_work(file1, file3)
  else:
      x = compare_files(file2,file3 )
      if x == False:
          print file2 + " and " +file3 +" are different"
          change_files(file2, file3,a)
          #did_it_work(file2, file3)
  print "program finished"
  
  

Alan Gauld <alan.gauld at freenet.co.uk> wrote:  >  The only problem is that despite the fact that as the same user,
> I can  manually change these files (so I must have the right file 
> permissions  ?)

Can you do it from within python at the >>> prompt

Use os.getcwd() to find out where you are
Use os.chdir() to navigate
Use os.listdir() to list the folder contents
and use shutil.copy() to copy the files.

Doing it manually from inside the >>> prompt should
show up any problems. You can even try the filecomp
call from in there too... >>> is a powerful tool.

HTH,

Alan G
Author of the learn to program web tutor
http://www.freenetpages.co.uk/hp/alan.gauld





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