Br. Sayan wrote:
> I am doing the following :
>
> with open('Manwal.txt') as infile, open('Manwal_req.txt','w') as outfile:
> for line in infile:
> if line.startswith(('R')):
> outfile.write(line)
>
> It is executing without error but returns a blank file. Where is the
> problem?
Your sample data uses the "\r" character to separate lines. This has gone
out of fashion, but Python 3 handles it gracefully.
In Python 2 you have to enable "universal newlines" explicitly with
with open("Manwal.txt", "U") as infile, ...
...
This will recognize "\r", "\r\n", and "\n" as line separators, and translate
all of them to "\n".
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