python3 runserver.py initdb 执行后，报错
yangn0 opened this issue · comments
如果执行 python3 runserver.py db init ，提示没有 db 这个命令。
如果执行 python3 runserver.py initdb，出下面这些。请问大佬们该如何解决？
/usr/local/python/lib/python3.6/site-packages/flask_sqlalchemy/init.py:839: FSADeprecationWarning: SQLALCHEMY_TRACK_MODIFICATIONS adds significant overhead and will be disabled by default in the future. Set it to True or False to suppress this warning.
'SQLALCHEMY_TRACK_MODIFICATIONS adds significant overhead and '
/usr/local/python/lib/python3.6/site-packages/flask_caching/init.py:184: UserWarning: Flask-Cache: CACHE_TYPE is set to null, caching is effectively disabled.
warnings.warn("Flask-Cache: CACHE_TYPE is set to null, "
Traceback (most recent call last):
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 2262, in _wrap_pool_connect
return fn()
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/pool/base.py", line 363, in connect
return _ConnectionFairy._checkout(self)
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/pool/base.py", line 760, in _checkout
fairy = _ConnectionRecord.checkout(pool)
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/pool/base.py", line 492, in checkout
rec = pool._do_get()
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/pool/impl.py", line 139, in _do_get
self._dec_overflow()
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/util/langhelpers.py", line 68, in exit
compat.reraise(exc_type, exc_value, exc_tb)
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/util/compat.py", line 129, in reraise
raise value
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/pool/impl.py", line 136, in _do_get
return self._create_connection()
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/pool/base.py", line 308, in _create_connection
return _ConnectionRecord(self)
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/pool/base.py", line 437, in init
self.__connect(first_connect_check=True)
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/pool/base.py", line 639, in __connect
connection = pool._invoke_creator(self)
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/engine/strategies.py", line 114, in connect
return dialect.connect(*cargs, **cparams)
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/engine/default.py", line 453, in connect
return self.dbapi.connect(*cargs, **cparams)
File "/usr/local/python/lib/python3.6/site-packages/psycopg2/init.py", line 130, in connect
conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
psycopg2.OperationalError: could not connect to server: Connection refused
Is the server running on host "localhost" (::1) and accepting
TCP/IP connections on port 5432?
could not connect to server: Connection refused
Is the server running on host "localhost" (127.0.0.1) and accepting
TCP/IP connections on port 5432?
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "runserver.py", line 175, in
cli.main()
File "/usr/local/python/lib/python3.6/site-packages/flask/cli.py", line 380, in main
return AppGroup.main(self, *args, **kwargs)
File "/usr/local/python/lib/python3.6/site-packages/click/core.py", line 717, in main
rv = self.invoke(ctx)
File "/usr/local/python/lib/python3.6/site-packages/click/core.py", line 1137, in invoke
return _process_result(sub_ctx.command.invoke(sub_ctx))
File "/usr/local/python/lib/python3.6/site-packages/click/core.py", line 956, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "/usr/local/python/lib/python3.6/site-packages/click/core.py", line 555, in invoke
return callback(*args, **kwargs)
File "/usr/local/python/lib/python3.6/site-packages/click/decorators.py", line 17, in new_func
return f(get_current_context(), *args, **kwargs)
File "/usr/local/python/lib/python3.6/site-packages/flask/cli.py", line 257, in decorator
return __ctx.invoke(f, *args, **kwargs)
File "/usr/local/python/lib/python3.6/site-packages/click/core.py", line 555, in invoke
return callback(*args, **kwargs)
File "runserver.py", line 105, in initdb
db.drop_all()
File "/usr/local/python/lib/python3.6/site-packages/flask_sqlalchemy/init.py", line 1015, in drop_all
self._execute_for_all_tables(app, bind, 'drop_all')
File "/usr/local/python/lib/python3.6/site-packages/flask_sqlalchemy/init.py", line 999, in _execute_for_all_tables
op(bind=self.get_engine(app, bind), **extra)
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/sql/schema.py", line 4313, in drop_all
ddl.SchemaDropper, self, checkfirst=checkfirst, tables=tables
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 2032, in _run_visitor
with self._optional_conn_ctx_manager(connection) as conn:
File "/usr/local/python/lib/python3.6/contextlib.py", line 81, in enter
return next(self.gen)
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 2024, in _optional_conn_ctx_manager
with self._contextual_connect() as conn:
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 2226, in _contextual_connect
self._wrap_pool_connect(self.pool.connect, None),
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 2266, in _wrap_pool_connect
e, dialect, self
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 1536, in _handle_dbapi_exception_noconnection
util.raise_from_cause(sqlalchemy_exception, exc_info)
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/util/compat.py", line 383, in raise_from_cause
reraise(type(exception), exception, tb=exc_tb, cause=cause)
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/util/compat.py", line 128, in reraise
raise value.with_traceback(tb)
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 2262, in _wrap_pool_connect
return fn()
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/pool/base.py", line 363, in connect
return _ConnectionFairy._checkout(self)
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/pool/base.py", line 760, in _checkout
fairy = _ConnectionRecord.checkout(pool)
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/pool/base.py", line 492, in checkout
rec = pool._do_get()
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/pool/impl.py", line 139, in _do_get
self._dec_overflow()
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/util/langhelpers.py", line 68, in exit
compat.reraise(exc_type, exc_value, exc_tb)
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/util/compat.py", line 129, in reraise
raise value
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/pool/impl.py", line 136, in _do_get
return self._create_connection()
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/pool/base.py", line 308, in _create_connection
return _ConnectionRecord(self)
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/pool/base.py", line 437, in init
self.__connect(first_connect_check=True)
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/pool/base.py", line 639, in __connect
connection = pool._invoke_creator(self)
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/engine/strategies.py", line 114, in connect
return dialect.connect(*cargs, **cparams)
File "/usr/local/python/lib/python3.6/site-packages/sqlalchemy/engine/default.py", line 453, in connect
return self.dbapi.connect(*cargs, **cparams)
File "/usr/local/python/lib/python3.6/site-packages/psycopg2/init.py", line 130, in connect
conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
sqlalchemy.exc.OperationalError: (psycopg2.OperationalError) could not connect to server: Connection refused
Is the server running on host "localhost" (::1) and accepting
TCP/IP connections on port 5432?
could not connect to server: Connection refused
Is the server running on host "localhost" (127.0.0.1) and accepting
TCP/IP connections on port 5432?
(Background on this error at: http://sqlalche.me/e/e3q8)
数据库未启动，默认使用postgresql, 可修改配置
SQLALCHEMY_DATABASE_URI = 'sqlite:///test.db'
数据库未启动，默认使用
postgresql, 可修改配置SQLALCHEMY_DATABASE_URI = 'sqlite:///test.db'
感谢回复！
请问改好数据库后，又报如下错误如何解决？
[yangning@localhost maple-bbs-master]$ python3 runserver.py initdb
/usr/local/python/lib/python3.6/site-packages/flask_sqlalchemy/init.py:839: FSADeprecationWarning: SQLALCHEMY_TRACK_MODIFICATIONS adds significant overhead and will be disabled by default in the future. Set it to True or False to suppress this warning.
'SQLALCHEMY_TRACK_MODIFICATIONS adds significant overhead and '
/usr/local/python/lib/python3.6/site-packages/flask_caching/init.py:184: UserWarning: Flask-Cache: CACHE_TYPE is set to null, caching is effectively disabled.
warnings.warn("Flask-Cache: CACHE_TYPE is set to null, "
这是警告，可以忽略
这是警告，可以忽略
感谢回复！
[yangning@localhost maple-bbs-master]$ python3 runserver.py create_index
运行这一句的话 还是 会报错 没有 这个命令？
/usr/local/python/lib/python3.6/site-packages/flask_sqlalchemy/init.py:839: FSADeprecationWarning: SQLALCHEMY_TRACK_MODIFICATIONS adds significant overhead and will be disabled by default in the future. Set it to True or False to suppress this warning.
'SQLALCHEMY_TRACK_MODIFICATIONS adds significant overhead and '
/usr/local/python/lib/python3.6/site-packages/flask_caching/init.py:184: UserWarning: Flask-Cache: CACHE_TYPE is set to null, caching is effectively disabled.
warnings.warn("Flask-Cache: CACHE_TYPE is set to null, "
Usage: runserver.py [OPTIONS] COMMAND [ARGS]...
Try "runserver.py --help" for help.
Error: No such command "create_index".
使用python runserver.py --help试试， 现在可能是python runserver.py create-index，这和click的版本有关