How to extract file name from folder to variable and not list?

Question

I want to extract file names from a folder and be able to use the names as strings:

I can get the file names from the folder but they are going into a list. Ideally I do not want to iterate over the list. Code so far:

from os import listdir
from os.path import isfile, join

f = '/path/to/file/*.sql'
for files in glob.glob(f):
    with open(files, 'r',encoding = "utf-8", errors="replace") as f:
        path = "/path/to/file/folder"
        onlyTxtFiles = [f for f in listdir(path) if isfile(join(path, f)) and  f.endswith(".sql")]

not sure how to put the string of the file name into variable 'onlyTxtFiles'.

edit;

I want to be able to do this:

onlyTxtFiles = 'file name'
str1 = onlyTxtFiles + 'test'

edit:

This is a for loop I made, but I am not looping over the files:

f = '/path/to/file/sql_files/*.sql'
for files in glob.glob(f):
    with open(files, 'r',encoding = "utf-8", errors="replace") as f:
        path = "/path/to/file/sql_files/"
        onlySqlFiles = [f for f in listdir(path) if isfile(join(path, f)) and  f.endswith(".sql")]
        for x in onlySqlFiles:
            file_name_insert = x

what am I doing wrong?

I'm confused. If you have more than one file name, and you want those file names to be in one variable, why don't you want a list? Associating many values to one name is pretty much exactly what lists are for. — Kevin
– Kevin, Commented Jul 24, 2018 at 19:02
@Kevin I made an edit, I am not sure how I can take the file names out so I can append them to different strings — RustyShackleford
– RustyShackleford, Commented Jul 24, 2018 at 19:11
Let's say your directory contains the files "foo", "bar", and "baz". What do you want the outcome to be? Three objects with values "footest", "bartest", and "baztest"? What would the names of those variables be? str1, str2, and str3? If so, you are asking for variable variables, and 99.9999% of the time, you should be using a list or dictionary instead. Related reading: How do I create a variable number of variables? — Kevin
– Kevin, Commented Jul 24, 2018 at 19:14
"This is a for loop I made, but I am not looping over the files: " Sure you are. What makes you think you aren't? If you're about to say "well, after the loop, I do print(file_name_insert), and it only prints one value", then there's your problem: you should be doing that inside the loop. — Kevin
– Kevin, Commented Jul 24, 2018 at 19:43

Ethan Armstrong · Accepted Answer · 2018-07-24 19:36:27Z

1

you say you want the code to be something like

onlyTxtFiles = 'file name'
str1 = onlyTxtFiles + 'test'

but if onlyTxtFiles is a list then it will return an error

one way would be to

onlyTxtFiles = 'file name'
str1 = onlyTxtFiles[0] + 'test'

for each expected value

or you could just use a for-loop

answered Jul 24, 2018 at 19:36

Ethan Armstrong

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1 Comment

RustyShackleford Over a year ago

so I went the for loop route. But here is the issue every for loop is not iterating over the file names. See edit

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