Re: Searching for a file

When answering I saw only the post from Peter. Everything else was in SPAM
folder. GMail was so kind to move the "junk" mails to my Inbox after
pressing SENT :-)

My code works in Linux but with a small change it should work in Windows
too.

ti 27.5.2025 klo 17.41 Roland Mueller ([email protected])
kirjoitti:

> To get a list of files in a given directory one can use glob.glob and
> os.path.isfile
>
> >>> from os.path import isfile
> >>> from glob import glob
> >>> files_in_var_tmp = [f for f in glob('/var/tmp/*') if isfile(f) ]
>
> For several directories iterate over the dirs and add the resulting list
> of files.
>
> >>> tmp_files = []
> >>> for dir in ['/tmp', '/var/tmp']:
> ...     tmp_files += [f for f in glob(dir + '/*')  if isfile(f) ]
>

>>> from os.path import isfile, join
>>> from glob import glob

>>> tmp_files = []
>>> for dir in ['/tmp', '/var/tmp']:
...     tmp_files += [f for f in glob(join(dir, '*'))  if isfile(f) ]

Here os.path.join is used to put the parts for the glob mask together
instead of plain '/'.

>
>
> ti 27.5.2025 klo 17.05 Peter J. Holzer ([email protected]) kirjoitti:
>
>> On 2025-05-24 17:18:11 -0600, Mats Wichmann wrote:
>> > On 5/23/25 16:05, Rob Cliffe via Python-list wrote:
>> > > On 23/05/2025 18:55, Mats Wichmann wrote:
>> > > > On 5/22/25 21:04, Rob Cliffe via Python-list wrote:
>> > > > > It occurs to me that it might be useful if Python provided a
>> > > > > function to search for a file with a given name in various
>> > > > > directories (much as the import.import_lib function searches for
>> > > > > a module in the directories in sys.path).
>> > > > > This function would perhaps be best placed in the os.path or os
>> modules.
>> > > > > To start the ball rolling, I offer this version:
>> > > > consider: os.walk, glob.glob, Path.glob
>> > > >
>> > > >
>> > > I have.  None of these are appropriate.
>> > > os.walk iterates *recursively* over a *single* directory and its
>> > > subdirectories.
>> > > pathlib.Path.glob so far as I can make out (I have never used pathlib)
>> > > does much the same.
>> > > glob.glob (so far as I can make out) does a *wildcard* search for
>> > > directories matching a *single* pattern.
>> > > My suggestion needs a *non-recursive* search for a *file* in a *list*
>> of
>> > > *non-wildcarded* directories.
>> >
>> > They don't give you "search in a list of directories" intrinsically, but
>> > that's simple loop, bailing out on a match, no?
>>
>> But they all read directories. For Rob's purpose this isn't necessary.
>> He just needs to test a fixed number of locations. Reading even one
>> directory (muss less recursively scanning a whole tree like os.walk
>> does) is just pointless extra work.
>>
>>         hjp
>>
>> --
>>    _  | Peter J. Holzer    | Story must make more sense than reality.
>> |_|_) |                    |
>> | |   | [email protected]         |    -- Charles Stross, "Creative writing
>> __/   | http://www.hjp.at/ |       challenge!"
>> --
>> https://mail.python.org/mailman3//lists/python-list.python.org
>>
>