how to detect file if exist in python

Question

how can i detect if a specifics files exist in directory ? example: i want to detect if (.txt) files exist in directory (dir) i tried with this :

import os.path
from os import path

def main():

   print ("file exist:"+str(path.exists('guru99.txt')))
   print ("File exists:" + str(path.exists('career.guru99.txt')))
   print ("directory exists:" + str(path.exists('myDirectory')))

if __name__== "__main__":
   main()

but all this functions you must to insert the complete file name with format(.txt)

Thank you !

you're already checking if files exist? do you want to check if ANY .txt files exist? — Derek Eden, Nov 17 '19 at 16:50
You are not using an absolute path, so are only testing if a given filename exists *in the current working directory*. — Martijn Pieters, Nov 17 '19 at 16:51

score 1 · Answer 1 · answered Nov 17 '19 at 16:49

to check if a specific file exists:

import os
os.path.exists(path_to_file)

will return True if it exists, False if not

to check if ANY .txt files exist:

import glob
    if glob.glob(path_to_files_'*.txt'):
        print('exists')
    else:
        print('doesnt')

Nicolas Gervais · Accepted Answer · 2019-11-17T16:52:51.300

1

from glob import glob
files = glob('*.txt') 
print(len(files)) # will return the number of .txt files in the dir
print(files) # will return all the .txt files in the dir

edited Nov 17 '19 at 16:52

answered Nov 17 '19 at 16:50

Nicolas Gervais

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This doesn't check if a *specific file* exists. – Martijn Pieters Nov 17 '19 at 16:50
@DerekEden: I did read it. Don't assume the question's English is perfect. – Martijn Pieters Nov 17 '19 at 16:52
well his code already checks for specific files, and the second part of the question says if .txt files... – Derek Eden Nov 17 '19 at 16:54
thank you , it's exactly what i want <3 – Karim Kataloni Nov 17 '19 at 17:00

how to detect file if exist in python

2 Answers2