Added note about blank line

dabeaz · dabeaz · commit 222ed8eb2fc0 · 2020-06-06T09:09:38.000-05:00
diff --git a/Notes/02_Working_with_data/02_Containers.md b/Notes/02_Working_with_data/02_Containers.md
@@ -105,6 +105,11 @@ with open('Data/prices.csv', 'rt') as f:
         prices[row[0]] = float(row[1])
 ```
 
+Note: If you try this on the `Data/prices.csv` file, you'll find that
+it almost works--there's a blank line at the end that causes it to
+crash.  You'll need to figure out some way to modify the code to
+account for that (see Exercise 2.6).
+
 ### Dictionary Lookups
 
 You can test the existence of a key.
