explaining pass thanks Esxiel

Akuli · Akuli · commit 89b17d24f250 · 2017-04-05T22:02:14.000+03:00
diff --git a/basics/classes.md b/basics/classes.md
@@ -77,6 +77,9 @@ Let's use it to define an empty class.
 >>>
 ```
 
+The `pass` is needed here, just like [when defining functions that do
+nothing](defining-functions.md#first-functions).
+
 Note that I named the class `Website`, not `website`. This way we know
 that it's a class. Built-in classes use lowercase names (like `str`
 instead of `Str`) because they are faster to type, but use CapsWord
diff --git a/basics/defining-functions.md b/basics/defining-functions.md
@@ -68,9 +68,14 @@ Let's use it to define a function that does nothing.
 >>>
 ```
 
-Seems to be working so far, we have a function. Actually it's just
-a value that is assigned to a variable called `do_nothing`. Let's see
-what happens if we call it.
+Seems to be working so far, we have a function. It's just a value that
+is assigned to a variable called `do_nothing`.
+
+The `pass` is needed here because without it, Python doesn't know when
+the function ends and it gives us a syntax error. We don't need the
+`pass` when our functions contain something else.
+
+Let's see what happens if we call our function.
 
 ```python
 >>> do_nothing()
