looping over the files in a directory

[Elaine Jackson]

Can anyone please tell me the actual syntax for saying something like this:

for <file> in <directory>:
<do something with the file>

(?) Muchas gracias.

Peace

 

[Mark J. Nenadov]

Can anyone please tell me the actual syntax for saying something like this:

for <file> in <directory>:
<do something with the file>

A simple example:

import os

path = '/home/bob/'

for f in os.listdir(path):
print f

 

[Jeremy Sanders]

Can anyone please tell me the actual syntax for saying something like this:

for <file> in <directory>:
<do something with the file>

(?) Muchas gracias.

There's also glob which may be useful depending on what you're doing, e.g.

import glob

for f in glob.glob("*.txt"):
print f

Jeremy

 

[Scott David Daniels]

A simple example:
import os
path = '/home/bob/'
for f in os.listdir(path):
print f

A further clue for Elaine is:
listdir returns file "names". Files are things the OS has; names are
how we talk about the files to the OS. If you want to do anything with
the file, you'll have to decide what you want to do, and communicate the
_full_name_ of the file to the OS when you try to do it.

You can do that either by joining the path and file names, or by
changing the "working directory" so that the simple file name works.
Which you do depends on your overall goal.

This is purposely left a bit elliptical to leave you some work in
case this is a homework assignment.

 

[Krzysztof Szynter]

This is purposely left a bit elliptical to leave you some work in
case this is a homework assignment.

Sorry for that, but what does mean 'a bit elliptical' in this sentence?
Is it a kind of circumlocution?

 

[Elaine Jackson]

elliptical <=> some information is left unspecified

| |
| > This is purposely left a bit elliptical to leave you some work in
| > case this is a homework assignment.
|
| Sorry for that, but what does mean 'a bit elliptical' in this sentence?
| Is it a kind of circumlocution?
|
| --
| Krzysztof Szynter :'''. :. : *
| Dygi GG 1027078 :...' ..... : : : ..... . . . . . .....
| http://newbie.friko.pl : : :.... : : : :.... :: :: :.. : :....
| dygimail(at)poczta(dot)fm :...' :.... : ': :.... : : :..' : :....

 

[Elaine Jackson]

Works like a charm. Thanks for the tip.

| On Fri, 14 May 2004 15:32:32 +0000, Elaine Jackson wrote:
|
| > Can anyone please tell me the actual syntax for saying something like this:
| >
| > for <file> in <directory>:
| > <do something with the file>
|
| A simple example:
|
| import os
|
| path = '/home/bob/'
|
| for f in os.listdir(path):
| print f
|
| --
| Mark J. Nenadov
| Python Byte Solutions
| http://www.pythonbyte.com/

 

[Krzysztof Szynter]

elliptical <=> some information is left unspecified

Thanks a lot.

 

[Daniel 'Dang' Griffith]

Can anyone please tell me the actual syntax for saying something like this:

for <file> in <directory>:
<do something with the file>

(?) Muchas gracias.

Peace

Mark Nenadov posted a solution for a single directory. If you want to
do so recursively, try something like this:

import os
for root, d, files in os.walk("."):
for basename in files:
filename = "%s/%s" % (root, basename)
print filename # or open it, or whatever...

--dang