From 5047ee07ab2b263bcf9fbfbfa768c7643a057af6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Luiz=20Ot=C3=A1vio?= <luizomf@gmail.com>
Date: Sat, 26 Nov 2022 09:49:13 -0300
Subject: [PATCH] Context Manager com contextlib.contextmanager

---
 aula149.txt |  2 ++
 aula150.py  | 22 ++++++++++++++++++++++
 aula150.txt |  1 +
 3 files changed, 25 insertions(+)
 create mode 100644 aula150.py
 create mode 100644 aula150.txt

diff --git a/aula149.txt b/aula149.txt
index 5f9afb6..ae73278 100644
--- a/aula149.txt
+++ b/aula149.txt
@@ -1 +1,3 @@
 Linha 1
+Linha 2
+Linha 3
diff --git a/aula150.py b/aula150.py
new file mode 100644
index 0000000..6ba7fc2
--- /dev/null
+++ b/aula150.py
@@ -0,0 +1,22 @@
+# Context Manager com função - Criando e Usando gerenciadores de contexto
+from contextlib import contextmanager
+
+
+@contextmanager
+def my_open(caminho_arquivo, modo):
+    try:
+        print('Abrindo arquivo')
+        arquivo = open(caminho_arquivo, modo, encoding='utf8')
+        yield arquivo
+    except Exception as e:
+        print('Ocorreu erro', e)
+    finally:
+        print('Fechando arquivo')
+        arquivo.close()
+
+
+with my_open('aula150.txt', 'w') as arquivo:
+    arquivo.write('Linha 1\n')
+    arquivo.write('Linha 2\n', 123)
+    arquivo.write('Linha 3\n')
+    print('WITH', arquivo)
diff --git a/aula150.txt b/aula150.txt
new file mode 100644
index 0000000..5f9afb6
--- /dev/null
+++ b/aula150.txt
@@ -0,0 +1 @@
+Linha 1