diff --git a/README.md b/README.md
index 5346d1c..ca8e1ca 100644
--- a/README.md
+++ b/README.md
@@ -3,3 +3,9 @@
 ln -s $(pwd)/wiki/linux-bash/bash_aliases.sh ~/.bash_aliases
 source "$HOME/.${SHELL##*/}rc"
 ```
+
+## ThreadPoolExecutor
+```py
+__import__('concurrent').futures.ThreadPoolExecutor().submit(
+   lambda x: (print(x * 2) or x ** 2 / 0), 3).result()
+```
\ No newline at end of file