segmentation fault

[ankita dutta]

hi,
i am relatively new to python programming,
i am facing the following problem:

i am tring to simply  obtain data from a file ( "B.txt" ,  data in this file
are in single column and floats)
and plot a graph between those values and thier index.  ( for example if in
file , if at 2nd position valuse is 9.34 ,  x=9.34 and y=1).
.
.
.
*ln1=open("B.txt","r+")
lines5=ln1.readlines()
exp=[ ]
c1=[ ]
for i in range (0,len(lines1)):
    f1=lines1[i].split()
    c1.append(float(f1[0]))
    exp.append(i)
c1.sort(reverse=1)

lines=plt.plot(c1,exp,'ro')
plt.show()
*.
.
.

but every time its showing the following error:

*<some random value>  is dumped
segmentation fault*


can anyone kindly help me out

thank you.


ankita
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