reading a .txt file from a folder in python script

Question

directory =os.path.join("C:\\Users\\Desktop\\udi\\pcm-audio") 
for subdir, dirs, files in os.walk(directory): 
    for file in files: 
        if file.endswith(".txt"): 
            f=open(os.path.join(subdir, file),'r') 
            a = f.read() 
            if re.findall('\"status_code\": 0', a):
                print('Valid one') 
            else: 
                print('Invalid') 
        f.close()

I have to read only a .txt file from the folder, so I am doing as above. Later I am trying to print what I read. But I am not getting any output when I run the above program. Can someone help me what is the mistake in that ?

Answer 1

The

f=open(os.path.join(subdir, file),'r')  

that zetysz answered is right. The problem is in the start directory path you give containing backslashes.

You can change that to forward slashes / instead of backslashes \ like this:

directory = os.path.normpath("C:/Users/sam/Desktop/pcm-audio")

or you can use double backslashes to quote them like this:

directory = os.path.normpath("C:\\Users\sam\\Desktop\\pcm-audio")

also use os.path.normpath to normalize the path. You dont need os.path.join here, since you do not join anything.

So this should work:

import os

directory = os.path.normpath("C:/Users/sam/Desktop/pcm-audio")
for subdir, dirs, files in os.walk(directory):
    for file in files:
        if file.endswith(".txt"):
            f=open(os.path.join(subdir, file),'r')
            a = f.read()
            print a
            f.close()