Python get file and folder size

1. Os.path.getsize can get the file size

Import osfile_name = ' XXXXXX '
Print (Os.path.getsize (file_name))

2, get the folder size, that is, traverse the folder, all the file size plus. Traversing folders using the Os.walk function

　　Os.walk () can get a ternary tupple (Dirpath, Dirnames, filenames),

1, the first one is the starting path,

2. The second is a folder under the starting path,

3. The third one is the file under the starting path.

Where Dirpath is a string that represents the path to the directory, Dirnames is a list that contains the names of all subdirectories under Dirpath. Filenames is a list that contains the name of a non-directory file. These names do not contain path information, and you need to use Os.path.join (Dirpath, name) if you need to get the full path.

Import OS

From Os.path import join, GetSize

def getdirsize (dir):
Size = 0
For root, dirs, files in Os.walk (dir):
Size + = SUM ([GetSize (Join (root, name)) for name in Files])
return size

Python get file and folder size