Shawn Milochik wrote:
> On 9/5/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
>> I have a text source file of about 20.000 lines.
>> >From this file, I like to write the first 5 lines to a new file. Close
>> that file, grab the next 5 lines write these to a new file... grabbing
>> 5 lines and creating new files until processing of all 20.000 lines is
>> done.
>> Is there an efficient way to do this in Python?
>> In advance, thanks for your help.
>>
Maybe (untested):
def read5Lines(f):
L = f.readline()
while L :
yield (L,f.readline(),f.readline(),f.readline(),f.readline())
L = f.readline()
in = open('C:\YourFile','rb')
for fileNo, fiveLines in enumerate(read5Lines(in)) :
out = open('c:\OutFile'+str(fileNo), 'wb')
out.writelines(fiveLines)
out.close()
or something similar? (notice that in the last output file you may have
a few (4 at most) blank lines)
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