All files in python Traverse Folder

'' 'Using the method of walk recursively traverse the directory file, the method returns a walk triples, are root, dirs and files. 
Where the root directory is currently being traversed path; dirs is a list containing the names of all the subdirectories under the current directory traversal are not included in the file directory; 
Files is a list that contains the current directory is traversed file, but does not include subdirectories. 
When the PIL installation: PIP install Pillow 
'' ' 
Import os 
from PIL Import Image 
DEF ab (path): # traverse the specified folder all the files, check the image size, tall less than deleting 300, not document images are also deleted 
    for root , dirs, in os.walk Files (path): 
        for Files in name: 
            Print (the os.path.join (the root, name)) 
            the try: 
                AA1 = the os.path.join (the root, name) 
                IMG = Image.open ( (aa1)) # image file is not open error, deleting 
            the except: 
                the os.remove (AA1) to delete the file # 
            w = img.width # length and width of the image file  
            h = img.height
            img.close ()
            if w<300 or h<300:
                os.remove(aa1)
                print(aa1)
            #pass

path=r"d:\tuajjb"
ab(path)

dirs=os.listdir(path)
for aa in dirs:
    #print(os.path.join(path,aa))
    #print(aa)
    pass
for root,dirs,files in os.walk(path):
    for name in dirs:
        aad="\\"
        if not os.listdir(path+ aad+ name):
            print(name)
            os.removedirs(path+aad+name)#删除文件夹