diff --git a/docs/_quarto.yml b/docs/_quarto.yml
index 3536f9e..0d4a2f9 100644
--- a/docs/_quarto.yml
+++ b/docs/_quarto.yml
@@ -223,10 +223,10 @@ book:
         - notes/python-modules/datetime.qmd
         #- notes/python-modules/getpass.ipynb
 
-    - part: "The Programming Environment"
-      #href: notes/python-modules/index.qmd
-      chapters:
-        - notes/python-lang/file-operations.qmd
+    #- part: "The Programming Environment"
+    #  #href: notes/python-modules/index.qmd
+    #  chapters:
+    #    - notes/python-lang/file-operations.qmd
 
     - part: "Custom Functions In-Depth"
       chapters:
diff --git a/docs/notes/python-modules/os.qmd b/docs/notes/python-modules/os.qmd
new file mode 100644
index 0000000..e69de29