我是 Flask 堆栈的新手。我需要运行一些项目。我创建了 virtualenv 并安装了所有要求：
Flask==0.10.1
Flask-Login==0.3.1
Flask-Testing==0.4.2
Flask-WTF==0.12
Jinja2==2.8
MarkupSafe==0.23
WTForms==2.0.2
Werkzeug==0.10.4
argparse==1.2.1
flask-peewee==0.6.6
funcsigs==0.4
itsdangerous==0.24
mock==1.3.0
nose==1.3.7
pbr==1.8.0
peewee==2.6.4
psycopg2==2.6.1
requests==2.7.0
six==1.9.0
wsgiref==0.1.2
wtf-peewee==0.2.3
我也有runserver.py启动项目的脚本：
from myproject import create_app
app = create_app()
if __name__ == '__main__':
app.run(debug=True, port=5000, host='0.0.0.0')
现在我想从models.py初始化 db ：
from peewee import Model, CharField, IntegerField, DateTimeField, DecimalField, TextField, datetime as peewee_datetime
from playhouse.pool import PooledPostgresqlExtDatabase
from .config import BaseConfig
db = PooledPostgresqlExtDatabase(**BaseConfig.DATABASE)
db.commit_select = True
db.autorollback = True
class BaseModel(Model):
class Meta:
database = db
def save(self, **kwds):
with db.transaction():
Model.save(self, **kwds)
class Payment(BaseModel):
class Meta:
db_table = "payments"
card_number = CharField()
amount = DecimalField()
....
def init_db():
try:
db.connect()
map(lambda l: db.drop_table(l, True), (Payment,))
print "tables dropped"
map(lambda l: db.create_table(l, True), (Payment,))
print "tables created"
except:
db.rollback()
raise
如何创建表格？Peewee 有类似 Django 命令“ python manage.py migrate ”的东西吗？以及如何在 Django 中的“ python manage.py shell ”之类的项目中运行 python shell？