Hello everybody,
I have easily spent some four hours on this problem, and I am now asking
for rescue.
Here is what I am trying to do: I have a file ("step2", with some 30 or
so lines. To each line I would like to add " -d" at the end. Finally, I
want to save the file under another name ("pyout".
So far I have managed to read the file, line by line, and save it under
another name:
<code>
# add " -d" to each line of a textfile
infile = open("step2", 'r') # open file for appending
outfile = open("pyout","a") # open file for appending
line = infile.readline() # Invokes readline() method on file
while line:
outfile.write(line), # trailing ',' omits newline character
line = infile.readline()
infile.close()
outfile.close()
</code>
As I said, before writing to file "pyout" I would like to append the
string " -d" to each line. But how, where? I can't append to strings
(which the lines gained with infile.readline() seem be), and my trial
and error approach has brought me nothing but a headache.
Thanks for your help!
David
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