On 10/13/2014 10:38 AM, Rff wrote:
Hi,
I have a text file. Now it is required to select every other line of that text
to
generate a new text file. I have read through Python grammar, but still lack
the
idea at the beginning of the task. Could you tell me some methods to get this?
Thanks,
Read in your lines, keeping a counter as you go. "Select" those lines
whose counter is even (or odd -- you didn't say which you wanted).
So now some questions for you:
* Do you know how to open a file and read in all the lines?
* Do you know how to count as you do so?
* Do you know how to test for evenness? (Use count%2 will be zero
for even count values.)
* Do you know how to write lines to an output file?
Gary Herron
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