Python：带枚举的os.walk（）

Question

In Python, I want to go list all the directories in a root directory, and print out the directory number together with the directory. I then want to print out the files in that directory.

The code would be something like:

for subdir, dirs, files in os.walk(root_dir):
    print "Directory " + str(dir_num) + " = " subdir
    for (file_num, file) in enumrate(files):
        print "File " + str(file_num) + " = " file

But how do can I get a value for dir_num , ie the number of the directory in the root directory? I know how to do this to print the file number, using enumerate() , but I'm unsure as to how to apply this to os.walk() ...

Answer 1

You can still use enumerate() :

for dirnum, (subdir, dirs, files) in enumerate(os.walk(root_dir)):

You need the parentheses around subdir, dirs, files because enumerate() will return only two items: the index and the tuple subdir, dirs, files .