MemoryError in Python script

[manvi]

Hi,
I have written a small python script to parse a very large data set. It works for sometime and then stops with an error message:

Traceback (most recent call last):
File "./tmveritracepars er.py", line 33, in ?
for lineStr in fin.xreadlines( ):
MemoryError


Code snippet is:

for lineStr in fin.xreadlines():
    operAddress = ParseLine(lineStr)
    address = operAddress[2].split('x')
    if (operAddress[1] == 'write'): 
        fout.write("%5s write %5s \n" % (operAddress[0], address[1]))
    if (operAddress[1] == 'read'):
      #  print operAddress[0] +  address[1]
        fout.write("%5s read %5s \n" % (operAddress[0], address[1]))
    else:
        continue

Any idea how it could be solved?
Thanks in advance,
M

[bvdet]

Hi,
I have written a small python script to parse a very large data set. It works for sometime and then stops with an error message:

Traceback (most recent call last):
File "./tmveritracepars er.py", line 33, in ?
for lineStr in fin.xreadlines( ):
MemoryError


Code snippet is:

for lineStr in fin.xreadlines( ):
operAddress = ParseLine(lineS tr)
address = operAddress[2].split('x')
if (operAddress[1] == 'write'):
fout.write("%5s write %5s \n" % (operAddress[0], address[1]))
if (operAddress[1] == 'read'):
# print operAddress[0] + address[1]
fout.write("%5s read %5s \n" % (operAddress[0], address[1]))
else:
continue

Any idea how it could be solved?
Thanks in advance,
M

The file method 'xreadlines()' is obsolete. Try iterating on the file object:

fin = open('file_name')
fout = open('file_name1', 'w')
 
for lineStr in fin:
    operAddress = ParseLine(lineStr)
    address = operAddress[2].split('x')
    if (operAddress[1] == 'write'):
        fout.write("%5s write %5s \n" % (operAddress[0], address[1]))
    elif (operAddress[1] == 'read'):
        # print operAddress[0] + address[1]
        fout.write("%5s read %5s \n" % (operAddress[0], address[1]))

There is no need for the else-continue statement unless you are skipping code that follows. I was guessing your code indentation. Try using code tags next time.