On 05/15/2010 09:20 AM, mannu jha wrote:
BTW: your mailer makes an absolute mess of plain-text emails,
putting multiple spaces
between
every
single
line
which
makes
it
very
hard
to
read.
Please fix it, use a real mailer, or risk getting ignored (or
worse, plonked). Fortunately, Vim makes it modestly easy to
unmung the rubbishy format.
>> # OPTIONAL_DELIMITER = " "
>> f1 = file("input1.txt")
>> f2 = file("input2.txt")
>> out = open("output.txt", 'w')
>> for left, right in itertools.izip(f1, f2):
>> out.write(left.rstrip('\r\n'))
>> # out.write(OPTIONAL_DELIMITER)
>> out.write(right)
>> out.close()
>> This only works if the two files are the same length, or (if
>> they're of differing lengths) you want the shorter version. The
>> itertools lib also includes an izip_longest() function with
>> optional fill, as of Python2.6 which you could use instead if you
>> need all the lines
>
> with this
>
> from itertools import chain
> # OPTIONAL_DELIMITER = " "
> f1 = file("input1.txt")
> f2 = file("input2.txt")
> out = open("output.txt", 'w')
> for left, right in itertools.izip(f1, f2):
> out.write(left.rstrip('\r\n'))
> # out.write(OPTIONAL_DELIMITER)
> out.write(right)
> out.close()
> it is showing error:
> ph08...@linux-af0n:~> python join.py
> Traceback (most recent call last):
> File "join.py", line 6, in
> for left, right in itertools.izip(f1, f2):
> NameError: name 'itertools' is not defined
That's because you're not importing itertools, but you're just
importing "chain" from within it. So of course when you try to
use "itertools.izip", itertools doesn't exist. You can either use
import itertools
#...
for left, right in itertools.izip(f1,f2):
or
from itertools import izip
#...
for left, right in izip(f1,f2):
-tkc
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