os.path.getsize Returns Incorrect Value?

The first answer brought me this:

>>> sum([os.path.getsize(f) for f in os.listdir('.') if os.path.isfile(f)])
1708

This is also not correct for me :( (I did check my cwd)

The code below brought me a closer result

total_size = 0
for folders, subfolders, files in os.walk(dirname):
    for file in files:
        total_size += os.path.getsize(os.path.join(folders, file))
print(total_size)

Using os.path.getsize() will only get you the size of the directory, NOT of its content. So if you call getsize() on any directory you will always get the same size since they are all represented the same way. On contrary, if you call it on a file, it will return the actual file size.

If you want the content you will need to do it recursively, like below:

sum([os.path.getsize(f) for f in os.listdir('.') if os.path.isfile(f)])

This value (4624B) represents the size of the file that describes that directory. Directories are described as inodes (http://en.wikipedia.org/wiki/Inode) that hold information about the files and directories it contains.

To get the number of files/subdirectories inside that path, use:

len(os.listdir(dirname))

To get the total amount of data, you could use the code in this question, that is (as @linker posted)

 sum([os.path.getsize(f) for f in os.listdir('.') if os.path.isfile(f)]).