[Tutor] Open a text file, read and print pattern matching

[tee chwee liong]

hi, 

i have a sampledata as below. Pls refer to output, if found -1, how to list out 
all the Lane number? And if there is no -1, print PASS. My code is as below 
section.
 
thanks
tcl76
 
####sampledata############
Platform: PC
Tempt : 25
TAP0 :0
TAP1 :1

+++++++++++++++++++++++++++++++++++++++++++++
Port Chnl Lane EyVt
+++++++++++++++++++++++++++++++++++++++++++++
0       1      1    75 
0       1      2    -1
0       1      3    10
0       1      4    -1
0       1      5    12
+++++++++++++++++++++++++++++++++++++++++++++
Time: 20s
############################
 
####output###################
case1: Found -1 
Lane 2 FAIL 
Lane 4 FAIL
 
case2: No -1 
All Lanes PASS
##########################
 
####Code####################
fname = "sampledata.txt" 
pattern = "-1"
for search in open(fname):
    if pattern in search:
        print "FAIL"
    else:
        print "PASS"

                                          
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