combined files together

[Gary Wessle]

Hi

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?
name address phone_no.

or do I have to open each, read from old/write-or-append to new ...

thanks

[Gary Herron]

Re: combined files together

Gary Wessle wrote:
[color=blue]
>Hi
>
>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?
>name address phone_no.
>
>or do I have to open each, read from old/write-or-append to new ...
>
>thanks
>
>
>[/color]
There's hardly enough code here to make a module out of this:

combined = open('...', 'wb')
for name in os.listdir(path ):
infile = open(os.path.jo in(path,name), 'rb')
for line in infile:
combined.write( line)

It could be more efficient by reading larger chunks than single lines,
and could be more accurate by closing both input and output files when
done, but you get the point I hope.

On the other hand, if you've got the right OS, you might try something like:
os.system("cat * > combined")

Gary Herron

[Gary Wessle]

Re: combined files together

Gary Herron <gherron@island training.com> writes:
[color=blue]
> Gary Wessle wrote:
>[color=green]
> >Hi
> >
> >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?
> >name address phone_no.
> >
> >or do I have to open each, read from old/write-or-append to new ...
> >
> >thanks
> >
> >[/color]
> There's hardly enough code here to make a module out of this:
>
> combined = open('...', 'wb')
> for name in os.listdir(path ):[/color]

I need to traverse those files in the order they were created
chronologically . listdir() does not do it, is there a way besides
build a list then list.sort(), then for element in list_of_files open
element?

thanks
[color=blue]
> infile = open(os.path.jo in(path,name), 'rb')
> for line in infile:
> combined.write( line)
>
> It could be more efficient by reading larger chunks than single lines,
> and could be more accurate by closing both input and output files when
> done, but you get the point I hope.
>
> On the other hand, if you've got the right OS, you might try something like:
> os.system("cat * > combined")
>
> Gary Herron[/color]

[Eric Deveaud]

Re: combined files together

Gary Wessle wrote:[color=blue]
>
> I need to traverse those files in the order they were created
> chronologically . listdir() does not do it, is there a way besides
> build a list then list.sort(), then for element in list_of_files open
> element?[/color]

are the name of the files describing the cration date, or have to rely on the
creation date ?

if the name allows to discriminate the chronology, check glob module.

Eric

[Gary Wessle]

Re: combined files together

Eric Deveaud <edeveaud@paste ur.fr> writes:
[color=blue]
> Gary Wessle wrote:[color=green]
> >
> > I need to traverse those files in the order they were created
> > chronologically . listdir() does not do it, is there a way besides
> > build a list then list.sort(), then for element in list_of_files open
> > element?[/color]
>
> are the name of the files describing the cration date,[/color]

yes
[color=blue]
> or have to rely on the creation date ?[/color]

no

[color=blue]
>
> if the name allows to discriminate the chronology, check glob module.[/color]

I just tried glob, it does not put out a list with file names sorted.[color=blue]
>
> Eric[/color]