From 12c91d26809e6b19fed9d52585050d646e523e50 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Luiz=20Ot=C3=A1vio?= <luizomf@gmail.com>
Date: Wed, 28 Dec 2022 18:29:01 -0300
Subject: [PATCH] =?UTF-8?q?Vari=C3=A1veis=20de=20ambiente=20com=20Python?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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---
 .env-example     |  4 ++++
 aula184.py       | 22 ++++++++++++++++++++++
 requirements.txt |  1 +
 3 files changed, 27 insertions(+)
 create mode 100644 .env-example
 create mode 100644 aula184.py

diff --git a/.env-example b/.env-example
new file mode 100644
index 0000000..9831f04
--- /dev/null
+++ b/.env-example
@@ -0,0 +1,4 @@
+BD_USER="CHANGE-ME"
+BD_PASSWORD="CHANGE-ME"
+BD_PORT=CHANGE-ME
+BD_HOST="CHANGE-ME"
diff --git a/aula184.py b/aula184.py
new file mode 100644
index 0000000..097dd1c
--- /dev/null
+++ b/aula184.py
@@ -0,0 +1,22 @@
+# Variáveis de ambiente com Python
+# Para variáveis de ambiente
+# Windows PS: $env:VARIAVEL="VALOR" | dir env:
+# Linux e Mac: export NOME_VARIAVEL="VALOR" | echo $VARIAVEL
+# Para obter o valor das variáveis de ambiente
+# os.getenv ou os.environ['VARIAVEL']
+# Para configurar variáveis de ambiente
+# os.environ['VARIAVEL'] = 'valor'
+# Ou usando python-dotenv e o arquivo .env
+# pip install python-dotenv
+# from dotenv import load_dotenv
+# load_dotenv()
+# https://pypi.org/project/python-dotenv/
+# OBS.: sempre lembre-se de criar um .env-example
+import os
+
+from dotenv import load_dotenv  # type: ignore
+
+load_dotenv()
+
+# print(os.environ)
+print(os.getenv('BD_PASSWORD'))
diff --git a/requirements.txt b/requirements.txt
index b49d4bf..28f2742 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,6 +6,7 @@ mypy-extensions==0.4.3
 pycodestyle==2.10.0
 pyflakes==3.0.1
 python-dateutil==2.8.2
+python-dotenv==0.21.0
 pytz==2022.6
 six==1.16.0
 tomli==2.0.1