flask_migrate 在使用falsk_sqlalchemy時,采用db.create_all在后期修改數(shù)據(jù)庫表字段的時候,不會自動的映射到數(shù)據(jù)庫中,必須刪除表, 然后重新運(yùn)行db.create_all 才會重新映射。這樣不符合我們的要求,因此flask-migrate就是為了解決 ...
...ager #這是一個做腳本調(diào)式的庫,有時間我也會總結(jié) from flask_migrate import Migrate,MigrateCommand app = Flask(__name__) app.config.from_envvar(config.py) db = SQLAlchemy(app) migrate = Migrate(app, db) manager =...
...建一個manage.py,代碼如下: from flask_script import Manager from flask_migrate import Migrate, MigrateCommand from HarpQA import app, db from models import Users, Questions, Comments manager = Manager(app...
...一個關(guān)于數(shù)據(jù)庫遷移的文件,基礎(chǔ)代碼如下 # manage.py from flask_migrate import MigrateCommand, Migrate from flask_script import Shell,Manager from todo_models import app,db,User,Department,Todo manager = Manager(app) ...
...作。flask db指令不能直接使用,需要獲取Migrate實(shí)例。 from flask_migrate import Migrate migrate = Migrate(app, db) 環(huán)境 通過FLASK_ENV變量設(shè)置Flask應(yīng)用的運(yùn)行環(huán)境。可選值包括production(默認(rèn))和development。如果設(shè)置為development,flask命令將激活debug...
...ms.validators import Required from flask_sqlalchemy import SQLAlchemy from flask_migrate import Migrate, MigrateCommand from flask_mail import Mail, Message basedir = os.path.abspath(os.path.dirna...
...直接去數(shù)據(jù)庫生成也可以的 from flask_script import Manager from flask_migrate import Migrate, MigrateCommand from apps import create_app #app.config.from_object(app.config) # configuration # SQLALCHEMY_DATABA...
...o from app.models import User from flask_script import Manager, Shell from flask_migrate import Migrate, MigrateCommand app = create_app(os.getenv(FLASK_CONFIG) or default) manager = Manager(app=...
...p install flask-migrate pip install flask-script 使用 (1) 實(shí)例化 from flask_migrate import Migrate,MigrateCommand from flask_sqlalchemy import SQLalchemy app = Flask(__name__) db = SQLalchemy(app) migra...
...定模板和靜態(tài)資源的路徑 # 2.以后的一些Flask插件,比如Flask_migrate,Flask_SQLAlchemy報錯的話,哪么Flask就會通過這個參數(shù)找到具體的報錯位置 app = Flask(__name__) # @app.route()是一個裝飾器,將對應(yīng)的/路徑應(yīng)用到hello_world()這個函數(shù)上...
ChatGPT和Sora等AI大模型應(yīng)用,將AI大模型和算力需求的熱度不斷帶上新的臺階。哪里可以獲得...
大模型的訓(xùn)練用4090是不合適的,但推理(inference/serving)用4090不能說合適,...
圖示為GPU性能排行榜,我們可以看到所有GPU的原始相關(guān)性能圖表。同時根據(jù)訓(xùn)練、推理能力由高到低做了...