Does not work on Windows

[hapasa]

Throws

AttributeError: 'os.stat_result' object has no attribute 'st_blocks'

instead

[wdoekes]

Try this:

diff --git a/dutree/dutree.py b/dutree/dutree.py
index 5f8a732..dbd3294 100755
--- a/dutree/dutree.py
+++ b/dutree/dutree.py
@@ -303,6 +303,20 @@ class DuNode:
 class DuScan:
     "Disk Usage Tree scanner"
 
+    class EmulateUnixStatResult:
+        """On some Unix systems (such as Linux), the following
+        attributes may also be available:
+        - st_blocks
+        ...
+
+        Windows does not have it. Wrap the stat_result in a
+        EmulateUnixStatResult and pretend we have st_blocks.
+        """
+        def __init__(self, st):
+            self.st_blocks = (st.st_size + 511) >> 9
+            self.st_mode = st.st_mode
+            self.st_size = st.st_size
+
     def __init__(self, pathname):
         self._path = self._normpath(pathname)
         self._tree = None
@@ -390,6 +404,15 @@ class DuScan:
                 warnings.warn(str(e), OsWarning)
                 continue
 
+            try:
+                st.st_blocks
+            except AttributeError:
+                # In Python, using exceptions for the _uncommon_ case,
+                # keeps the common (unix/linux) case (which has st_blocks)
+                # fast.
+                warnings.warn('No st_blocks on your OS, emulating', OsWarning)
+                st = self.EmulateUnixStatResult(st)
+
             if S_ISREG(st.st_mode):
                 if st.st_blocks == 0:
                     # Pseudo-files, like the one in /proc have 0-block