diff --git a/1_introducao/21_excecoes.py b/1_introducao/21_excecoes.py
new file mode 100644
index 0000000..f40a9e1
--- /dev/null
+++ b/1_introducao/21_excecoes.py
@@ -0,0 +1,3 @@
+"""
+Implementado no arquivo 20_excecoes.py
+"""