add dirtrav

chapter7/dirtrav.py

@@ -0,0 +1,27 @@
+import logging
+from collections import deque
+from pathlib import Path
+
+logging.basicConfig(level=logging.DEBUG)
+logger = logging.getLogger(__name__)
+
+scripts_path = Path.home() / "scripts"
+
+
+def files_with_extension(ext):
+    queue = deque()
+    queue += scripts_path.glob("*")
+
+    while queue:
+        item = queue.popleft()
+
+        # if it is a file and has extension ext then print
+        if item.is_file() and item.suffix == ext:
+            print(item)
+
+        # otherwise add directory items to the queue
+        else:
+            queue += item.glob("*")
+
+
+files_with_extension(".sh")