(3)连接MySQL数据库 # app/__init__.py from flask import Flask from flask_sqlalchemy import SQLAlchemy db = SQLAlchemy() def create_app(): app = Flask(__name__) app.config['SECRET_KEY'] = 'hard to guess string' app.config['SQLALCHEMY_DATABASE_URI'] = 'mysql+pymysql://你的用...
app.config['SQLALCHEMY_DATABASE_URI'] ='sqlite://'app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] =Truedb = SQLAlchemy(app)# 定义ORMclassTodo(db.Model):id= db.Column(db.Integer, primary_key=True) title = db.Column(db.String(80), unique=True) description = db.Column(db.String(120), u...
DATABASE = 'xt_flask' USERNAME = 'root' PASSWORD = 'root' DB_URI = 'mysql+mysqldb://{}:{}@{}:{}/{}'.format(USERNAME,PASSWORD,HOSTNAME,PORT,DATABASE) # 创建数据库引擎 engine = create_engine(DB_URI) #创建连接 with engine.connect() as con: rs = con.execute('SELECT 1') print...
engine = create_engine('sqlite:///C:\\path\\to\\foo.db') #Windows 也可以这么用三条///加盘符路径用一条\ engine = create_engine(r'sqlite:///C:\path\to\foo.db') #数据库建在内存里。URI保持为空即可 engine = create_engine('sqlite://') 三:连接mysql(mariadb) sqlalchemy默认使用mysql...
SQLALCHEMY_DATABASE_URI = 'sqlite:///' + os.path.join(basedir, 'data.sqlite') config = { 'development': DevelopmentConfig, 'default': DevelopmentConfig, } 项目/管理.py: import os from app import create_app, db from app.models import User ...
app.config['SQLALCHEMY_DATABASE_URI'] ='sqlite://'app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] =Truedb = SQLAlchemy(app)# 定义ORMclassTodo(db.Model):id= db.Column(db.Integer, primary_key=True) title = db.Column(db.String(80), unique=True) ...
# app/config.py SQLALCHEMY_DATABASE_URI = "sqlite:///sqlite3.db" # 这个项是必须的 3. 实例化db对象后我们会在,create_app这个工厂方法里注册db实例和加载数据配置 # app/__init__.py from flask import Flask from app.extension importt db def create_app() -> Flask: app = Flask(__name...
Python白银群【未央】问了一个Python连接数据库的问题,这里拿出来给大家分享下。 看上去基本上没啥问题: 这里是对应的告警:pandas only supports SQLAlchemy connectable (engine/connection) or database string URI or sqlite3 DBAPI2 connection. Other DBAPI2 objects are not tested. Please consider using SQL...
config['SQLALCHEMY_DATABASE_URI'] = "sqlite:///sqlite.db" # MySQL :需要额外安装 pymysql 库(Python3中) app.config['SQLALCHEMY_DATABASE_URI'] = "mysql+pymysql://root:weiyigeek@localhost:3306/Flask_Hello" Step 4.项目环境决定数据库链接自定义配置 (1) 开发环境(Development):开发人员把代码...
hello Miguel I went through you tutorial and am real grateful because I had never had such experience with python for web. Kindly I receive the above error when running the test.py. Kindly help because I cannot do other test without the ...