Python: Compare two directories with different structure and list new files

Question

I have a script that copies files from one folder structure to another folder with different structure.

ex. Folder 1
    c.txt
    d.txt
    subdir1
      a.txt
      b.txt

Script copies files/dirs from Folder 1 to Folder 2(Folder 2 has different structure) in this format

Folder 2
   subdir2
     c.txt
     d.txt
   subdir1
     a.txt
     b.txt

In folder 2 i can create my own files like new1.txt, new2.txt. After creating new files the folder 2 structure will be something like this:

Folder 2
   new1.txt
   new2.txt
   subdir2
     c.txt
     d.txt
   subdir1
     a.txt
     b.txt

Now i need to compare the directory content of Folder1 and Folder2. I am using filecmp.dircmp for comparing directory content. filecmp.dircmp on these two folders will give me subdir2, subdir2/c.txt, subdir2/d.txt as new directory and new files with new1.txt and new2.txt. But actually i have only created new1.txt and new2.txt as new files and the other files only copied from one folder to different folder.

As a new files i need only new1.txt and new2.txt in result. Any idea how can i do it. I am writing this code in python

Answer 1

Tim is right, os.walk is the solution:

>>> path = r'D:\DATA\FP12210\My Documents\Temp\Python'
>>> import os
>>> files1 = []
>>> for root, dirs, files in os.walk(os.path.join(path, 'Folder 1')):
    files1.extend(files)


>>> files1
['c.txt', 'd.txt', 'a.txt', 'b.txt']
>>> files2 = []
>>> for root, dirs, files in os.walk(os.path.join(path, 'Folder 2')):
    files2.extend(files)


>>> files2
['new1.txt', 'new2.txt', 'a.txt', 'b.txt', 'c.txt', 'd.txt']

Then you can diff your outputs:

>>> print [f for f in files2 if f not in files1]
['new1.txt', 'new2.txt']