[Patches] filecmp.py: new function to compare file _objects_

[gerrit@nl.linux.org]

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Hello,

I changed the filecmp.py module a bit to put the comparing of the
file objects in a seperate function 'cmpfp', which can be used by
the programmer. I needed this functionality for comparing two
cStringIO file objects.

-- 
Comparison Python GUI's: http://www.nl.linux.org/~gerrit/gui.html
Please comment!

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*** /tmp/filecmp.py	Tue Feb 29 10:33:36 2000
--- filecmp.py	Tue Feb 29 10:50:22 2000
***************
*** 51,57 ****
  def _do_cmp(f1, f2):
  	bufsize = BUFSIZE
  	fp1 , fp2 = open(f1, 'rb'), open(f2, 'rb')
  	while 1:
! 		b1, b2 = fp1.read(bufsize), fp2.read(bufsize)
  		if b1!=b2: return 0
  		if not b1: return 1
--- 51,60 ----
  def _do_cmp(f1, f2):
  	bufsize = BUFSIZE
  	fp1 , fp2 = open(f1, 'rb'), open(f2, 'rb')
+ 	return cmpfp(fp1, fp2)
+ 
+ def cmpfp(fp1, fp2):
  	while 1:
! 		b1, b2 = fp1.read(BUFSIZE), fp2.read(BUFSIZE)
  		if b1!=b2: return 0
  		if not b1: return 1

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