[FIXED] Can't solve FileNotFoundError: [WinError 3] The system cannot find the path specified: Error Python

Issue

I have a simple renaming script I'm running in a test directory. It works fine for the first replace method but throws an error on the second use of the method. Can anyone help me solve this one?

dir = ('C://Users//zstanley//OneDrive - Golden Gate National Parks Conservancy//BolinasWyeWetlands')
os.chdir(dir)
[os.rename(os.path.join(dir, f), os.path.join(dir, f).replace('_', '').replace(' ', '').lower()) 
    for f in os.listdir(dir)]

Solution

This works (with \\ for windows):

Modifications:

1. remove the list comprehension (because it was a bit too long).
2. remove os.chdir(dir), no need to change directory.

I was then able to easily inspect each file and run on a test folder.

import os

dir = ("C:\\test")

# check that the folder exists
if os.path.isdir(dir):
    print('folder exists')
else:
    print('folder does not exist')
    exit()

for f in os.listdir(dir):

    a = os.path.join(dir, f)
    b = os.path.join(dir, f).replace('_', '').replace(' ', '').lower()
    os.rename(a, b)
    print('file names updated')

Here are the results:

file system before:

file system after:

Answered By - D.L