for loop: weird behavior

Fri May 4 16:33:39 EDT 2012

Hi there,
I simply can't print anything in the second for-loop bellow:
#########################################
#!/usr/bin/env python 
import sys
filename = sys.argv[1]
outname = filename.split('.')[0] + '_pdr.dat'
begin = 'Distance distribution'
end = 'Reciprocal'
first = 0
last = 0
with open(filename) as inf:
 for num, line in enumerate(inf, 1):
 #print num, line 
 if begin in line:
 first = num
 if end in line:
 last = num
 for num, line in enumerate(inf, 1):
 print 'Ok!'
 print num, line
 if num in range(first + 5, last - 1):
 print line
 print first, last
 print range(first + 5, last - 1)
####################################
The output goes here:
http://pastebin.com/egnahct2
Expected: at least the string 'Ok!' from the second for-loop.
What I'm doing wrong?
thanks in advance.
Fred
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