virtualen中的SQLAlchemy错误

Question

我试图在没有根权限的计算机上运行python脚本。为此，我使用Python2.7设置了一个virtualenv，然后添加了需要并行Python和SQLAlchemy的两个包。运行脚本时出现以下错误：

(virtPython)thaddeus:recipes ab940$ python2.7 matchIngsParallel.py 
Starting pp with 8 workers
Reading ingredients into dictionary
Traceback (most recent call last):
  File "matchIngsParallel.py", line 65, in <module>
    for synonym, parentIng in session.query(IngSyn.synonym, IngSyn.parentIng): 
  File "build/bdist.macosx-10.6-intel/egg/sqlalchemy/orm/query.py", line 2227, in     __iter__
  File "build/bdist.macosx-10.6-intel/egg/sqlalchemy/orm/query.py", line 2242, in     _execute_and_instances
  File "build/bdist.macosx-10.6-intel/egg/sqlalchemy/engine/base.py", line 1449, in execute
  File "build/bdist.macosx-10.6-intel/egg/sqlalchemy/engine/base.py", line 1584, in _execute_clauseelement
  File "build/bdist.macosx-10.6-intel/egg/sqlalchemy/engine/base.py", line 1698, in _execute_context
  File "build/bdist.macosx-10.6-intel/egg/sqlalchemy/engine/base.py", line 1691, in _execute_context
  File "build/bdist.macosx-10.6-intel/egg/sqlalchemy/engine/default.py", line 331, in do_execute
sqlalchemy.exc.OperationalError: (OperationalError) no such table: ingSyns u'SELECT     "ingSyns".synonym AS "ingSyns_synonym", "ingSyns"."parentIng" AS "ingSyns_parentIng" \nFROM     "ingSyns"' ()

似乎所有的东西都被正确地导入，但是数据库没有被正确地访问。在

脚本如下：

^{pr2}$

（此代码缩短，但包含错误发生的位置）

assignDB如下所示：

^{3}$

然后是类定义。在

不过，我在其他电脑上也试过了。我很困惑到底出了什么问题！在

Answer 1

脚本可以访问数据库，但是它中似乎没有表。我想您是从另一台机器复制脚本的，您是否也复制了SQLite数据库文件^{cd1>}？