我想在运行Flask + sqlalchemy(mysql)的Linode实例上运行python setup.py
一个小脚本。在Virtualenv中导入错误
#filename - setup.py
from daaru import db
def init_db():
db.drop_all()
db.create_all()
init_db()
这是我得到的错误 -
Traceback (most recent call last):
File "setup.py", line 21, in <module>
init_db()
File "setup.py", line 9, in init_db
db.drop_all()
File "/home/captain/public/daaru/v1/local/lib/python2.7/site-packages/flask_sqlalchemy.py", line 830, in drop_all
self._execute_for_all_tables(app, bind, 'drop_all')
File "/home/captain/public/daaru/v1/local/lib/python2.7/site-packages/flask_sqlalchemy.py", line 814, in _execute_for_all_tables
op(bind=self.get_engine(app, bind), tables=tables)
File "/home/captain/public/daaru/v1/local/lib/python2.7/site-packages/flask_sqlalchemy.py", line 763, in get_engine
return connector.get_engine()
File "/home/captain/public/daaru/v1/local/lib/python2.7/site-packages/flask_sqlalchemy.py", line 443, in get_engine
self._engine = rv = sqlalchemy.create_engine(info, **options)
File "/home/captain/public/daaru/v1/local/lib/python2.7/site-packages/sqlalchemy/engine/__init__.py", line 338, in create_engine
return strategy.create(*args, **kwargs)
File "/home/captain/public/daaru/v1/local/lib/python2.7/site-packages/sqlalchemy/engine/strategies.py", line 64, in create
dbapi = dialect_cls.dbapi(**dbapi_args)
File "/home/captain/public/daaru/v1/local/lib/python2.7/site-packages/sqlalchemy/connectors/mysqldb.py", line 52, in dbapi
return __import__('MySQLdb')
ImportError: No module named MySQLdb
有趣的是,当我登录到服务器,激活虚拟ENV(名为v1
),并在IPython的一切运行init_db
按预期工作。但是当我将它作为脚本运行时,它给了我一个名为MySQLdb
的模块的ImportError
。 MySQLdb的系统范围安装使用apt-get install python-mysqldb
,因为该软件包不可通过pip使用。
我在这里做错了什么?
在服务器上运行pip freeze
显示我:
Flask==0.9
Flask-SQLAlchemy==0.16
Jinja2==2.6
SQLAlchemy==0.7.9
Werkzeug==0.8.3
argparse==1.2.1
wsgiref==0.1.2
来了,因为MySQLdb的包没有在VENV发现错误?那么为什么不使用该软件包的系统范围安装?
如果人们认为他们可以为您提供更好的解决方案,他们仍然可以添加答案;两天的延迟是让他们有机会看看你的问题。 :-) –