CODEWITHSUNDEEP
python-2.7
Claudia
Claudia

Reputation: 541

Python: [Errno 2] No such file or directory

I want to open and read all csv file in a specific folder. I'm on OS X El Capitan version 10.11.6, and I'm using Python 2.7.10. I have the following function in phyton file:

def open_csv_files(dir):
for root,dirs,files in os.walk(dir):
    for file in files:
        if file.endswith(".csv"):
            f= open(file)
            print "FILE OPEN, AND DO SOMETHING... "
            f.close
return

I call open_csv_file(./dati/esempi)

This procedure return

IOError: [Errno 2] No such file or directory: 'sensorfile_1.csv'

I try to call the procedure with absolute path /Users/Claudia/Desktop/Thesis/dati/esempi/ but I have the same error.

Moreover I define another procedure that print all filename in folder, this procedure print correctly all filenames in folder.

Thanks for the help.

Upvotes: 0

Views: 3425

Answers (1)

Łukasz Rogalski
Łukasz Rogalski

Reputation: 23203

You need to build absolute path to file based on values of root (base dir) and file name.

import os


def open_csv_files(directory):
    for root, dirs, files in os.walk(directory):
        for file_name in files:
            if file_name.endswith(".csv"):
                full_file_path = os.path.join(root, file_name)
                with open(full_file_path) as fh:
                    print "Do something with", full_file_path

Upvotes: 5

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