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cursopython2023/aula206/main.py

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Python

# PyMySQL - um cliente MySQL feito em Python Puro
# Doc: https://pymysql.readthedocs.io/en/latest/
# Pypy: https://pypi.org/project/pymysql/
# GitHub: https://github.com/PyMySQL/PyMySQL
import os
import dotenv
import pymysql
TABLE_NAME = 'customers'
dotenv.load_dotenv()
connection = pymysql.connect(
host=os.environ['MYSQL_HOST'],
user=os.environ['MYSQL_USER'],
password=os.environ['MYSQL_PASSWORD'],
database=os.environ['MYSQL_DATABASE'],
charset='utf8mb4'
)
with connection:
with connection.cursor() as cursor:
cursor.execute( # type: ignore
f'CREATE TABLE IF NOT EXISTS {TABLE_NAME} ('
'id INT NOT NULL AUTO_INCREMENT, '
'nome VARCHAR(50) NOT NULL, '
'idade INT NOT NULL, '
'PRIMARY KEY (id)'
') '
)
# CUIDADO: ISSO LIMPA A TABELA
cursor.execute(f'TRUNCATE TABLE {TABLE_NAME}') # type: ignore
connection.commit()
# Começo a manipular dados a partir daqui
with connection.cursor() as cursor:
sql = (
f'INSERT INTO {TABLE_NAME} '
'(nome, idade) '
'VALUES '
'(%s, %s) '
)
data = ('Luiz', 18)
result = cursor.execute(sql, data) # type: ignore
print(sql, data)
print(result)
connection.commit()