CODEWITHSUNDEEP
python
TheHistory
TheHistory

Reputation: 25

NotADirectoryError: [Errno 20] Not a directory:

ROOT_DIR = "/content/LCDS/MalignantCases"

number_of_images = {} 

for dir in os.listdir(ROOT_DIR):

 
  number_of_images[dir] = len(os.listdir(os.path.join(ROOT_DIR, dir)))

when I run the code I get this error

NotADirectoryError                        Traceback (most recent call last)
<ipython-input-105-4edc0f0385bd> in <module>()
   
   number_of_images[dir] = len(os.listdir(os.path.join(ROOT_DIR, dir)))

NotADirectoryError: [Errno 20] Not a directory: '/content/LCDS/MalignantCases/Malignant case (347).jpg'

What I am doing wrong here ?

Upvotes: 2

Views: 10668

Answers (1)

Red
Red

Reputation: 27567

You'll need to check if the object is a file or a directory before attemting to call the os.listdir() method on it. You can do this using the os.path.isdir() method:

ROOT_DIR = "/content/LCDS/MalignantCases"

number_of_images = {} 

for dir in os.listdir(ROOT_DIR):
  joined = os.path.join(ROOT_DIR, dir)
  if os.path.isdir(joined):
    number_of_images[dir] = len(os.listdir(joined))

A few things to note:

  1. It is considered bad practice to define variables using names that are taken by built-in function, and in your case, dir is already the name of the built-in function dir().

  2. It is recommended by PEP-8 to used 4 spaces as indentation for optimal readability.

Upvotes: 2

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