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-rw-r--r--bot/resources/tags/mutability.md2
1 files changed, 2 insertions, 0 deletions
diff --git a/bot/resources/tags/mutability.md b/bot/resources/tags/mutability.md
index a1d2c8ee0..fd9319daf 100644
--- a/bot/resources/tags/mutability.md
+++ b/bot/resources/tags/mutability.md
@@ -37,3 +37,5 @@ Mutable data types like `list`, on the other hand, can be changed in-place:
```
Other examples of mutable data types in Python are `dict` and `set`. Instances of user-defined classes are also mutable.
+
+For an in-depth guide on mutability see [Ned Batchelder's video on names and values](https://youtu.be/_AEJHKGk9ns/).