combined files together

[Tim Williams]

On 06 May 2006 16:41:45 +1000, Gary Wessle <phddas at yahoo.com> wrote:

> is there a module to do things like concatenate all files in a given
> directory into a big file, where all the files have the same data
> formate?

If you want to combine text files file1 and file2 into a combined file1

>>> txt = open('file2.txt', 'r').read()
>>> open('file1.txt', 'a').write(txt)

or less easy to read

>>> open('file1.txt', 'a').write( open('file2.txt', 'r').read() )

If you want to combine file1 and file2 into a brand new new file3

>>> txt1 = open('file1.txt', 'r').read()
>>> txt2 = open('file2.txt', 'r').read()

if you have a trailing newline on file1 use

>>> txt1 = open('file1.txt', 'r').read()[:-1]

then something like

>>> open('file3.txt', 'w').write(txt1)
>>> open('file3.txt', 'a').write(txt2)

or maybe

>>> open('file3.txt', 'w').write(txt1+txt2)

If you already have file3 and want to keep its contents,  change the
writes above ( 'w' ) to appends ( 'a' )


HTH :)