Pyramid、Python3、SQLAlchemy和MySQL

我希望Pyramid、Python3、SQLAlchemy和MySQL在一台机器上运行良好。这个问题一直存在，但很久以前，我希望答案已经改变了

问题：

什么驱动程序可以让Python3金字塔应用程序通过SQLAalchemy与MySQL进行良好的对话？这可能吗

在这个项目中，我一直认为切换数据库是一件简单的事情，现在我有点卡住了，降级到Python2.7并不是我想经历的事情。所以我的第二个问题是：

如果在不降级的情况下无法很好地与MySQL对话，那么除了SQLite之外，还有Python 3可以使用的数据库吗

或者最后，我如何克服下面“我尝试过的东西”一节中提到的任何问题

我尝试过的东西：

PyMySQL

我安装了PyMySQL，我甚至让它抱怨密码不正确和数据库丢失，所以它做对了。但当我尝试初始化数据库时（使用

初始化\u foo\u db

），一切都变糟了：

2013-02-06 17:18:31,282 INFO  [sqlalchemy.engine.base.Engine][MainThread] b'SELECT DATABASE()'
2013-02-06 17:18:31,282 INFO  [sqlalchemy.engine.base.Engine][MainThread] ()
Traceback (most recent call last):
  File "/home/sheena/MegaCatalogue/env/local/lib/python3.2/site-packages/SQLAlchemy-0.7.8-py3.2.egg/sqlalchemy/pool.py", line 719, in _do_get
return self._pool.get(wait, self._timeout)
File "/home/sheena/MegaCatalogue/env/local/lib/python3.2/site-packages/SQLAlchemy-0.7.8-py3.2.egg/sqlalchemy/util/queue.py", line 137, in get
raise Empty
sqlalchemy.util.queue.Empty

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "../bin/initialize_mega_db", line 9, in <module>
load_entry_point('mega==0.0', 'console_scripts', 'initialize_mega_db')()
  File "/home/sheena/MegaCatalogue/env/mega/mega/scripts/initializedb.py", line 46, in main
Base.metadata.create_all(engine)
  File "/home/sheena/MegaCatalogue/env/local/lib/python3.2/site-packages/SQLAlchemy-0.7.8-py3.2.egg/sqlalchemy/schema.py", line 2567, in create_all
tables=tables)
  File "/home/sheena/MegaCatalogue/env/local/lib/python3.2/site-packages/SQLAlchemy-0.7.8-py3.2.egg/sqlalchemy/engine/base.py", line 2301, in _run_visitor
conn = self.contextual_connect(close_with_result=False)
  File "/home/sheena/MegaCatalogue/env/local/lib/python3.2/site-packages/SQLAlchemy-0.7.8-py3.2.egg/sqlalchemy/engine/base.py", line 2492, in contextual_connect
self.pool.connect(), 
  File "/home/sheena/MegaCatalogue/env/local/lib/python3.2/site-packages/SQLAlchemy-0.7.8-py3.2.egg/sqlalchemy/pool.py", line 224, in connect
return _ConnectionFairy(self).checkout()
  File "/home/sheena/MegaCatalogue/env/local/lib/python3.2/site-packages/SQLAlchemy-0.7.8-py3.2.egg/sqlalchemy/pool.py", line 387, in __init__
rec = self._connection_record = pool._do_get()
  File "/home/sheena/MegaCatalogue/env/local/lib/python3.2/site-packages/SQLAlchemy-0.7.8-py3.2.egg/sqlalchemy/pool.py", line 741, in _do_get
con = self._create_connection()
  File "/home/sheena/MegaCatalogue/env/local/lib/python3.2/site-packages/SQLAlchemy-0.7.8-py3.2.egg/sqlalchemy/pool.py", line 188, in _create_connection
return _ConnectionRecord(self)
  File "/home/sheena/MegaCatalogue/env/local/lib/python3.2/site-packages/SQLAlchemy-0.7.8-py3.2.egg/sqlalchemy/pool.py", line 273, in __init__
pool.dispatch.first_connect.exec_once(self.connection, self)
  File "/home/sheena/MegaCatalogue/env/local/lib/python3.2/site-packages/SQLAlchemy-0.7.8-py3.2.egg/sqlalchemy/event.py", line 279, in exec_once
self(*args, **kw)
  File "/home/sheena/MegaCatalogue/env/local/lib/python3.2/site-packages/SQLAlchemy-0.7.8-py3.2.egg/sqlalchemy/event.py", line 288, in __call__
fn(*args, **kw)
  File "/home/sheena/MegaCatalogue/env/local/lib/python3.2/site-packages/SQLAlchemy-0.7.8-py3.2.egg/sqlalchemy/engine/strategies.py", line 168, in first_connect
dialect.initialize(c)
  File "/home/sheena/MegaCatalogue/env/local/lib/python3.2/site-packages/SQLAlchemy-0.7.8-py3.2.egg/sqlalchemy/dialects/mysql/base.py", line 1999, in initialize
default.DefaultDialect.initialize(self, connection)
  File "/home/sheena/MegaCatalogue/env/local/lib/python3.2/site-packages/SQLAlchemy-0.7.8-py3.2.egg/sqlalchemy/engine/default.py", line 177, in initialize
self._get_default_schema_name(connection)
  File "/home/sheena/MegaCatalogue/env/local/lib/python3.2/site-packages/SQLAlchemy-0.7.8-py3.2.egg/sqlalchemy/dialects/mysql/base.py", line 1964, in _get_default_schema_name
return connection.execute('SELECT DATABASE()').scalar()
  File "/home/sheena/MegaCatalogue/env/local/lib/python3.2/site-packages/SQLAlchemy-0.7.8-py3.2.egg/sqlalchemy/engine/base.py", line 1449, in execute
params)
  File "/home/sheena/MegaCatalogue/env/local/lib/python3.2/site-packages/SQLAlchemy-0.7.8-py3.2.egg/sqlalchemy/engine/base.py", line 1628, in _execute_text
statement, parameters
  File "/home/sheena/MegaCatalogue/env/local/lib/python3.2/site-packages/SQLAlchemy-0.7.8-py3.2.egg/sqlalchemy/engine/base.py", line 1691, in _execute_context
context)
  File "/home/sheena/MegaCatalogue/env/local/lib/python3.2/site-packages/SQLAlchemy-0.7.8-py3.2.egg/sqlalchemy/engine/default.py", line 333, in do_execute
cursor.execute(statement, parameters)
  File "/home/sheena/MegaCatalogue/env/local/lib/python3.2/site-packages/PyMySQL3-0.5-py3.2.egg/pymysql/cursors.py", line 108, in execute
query = query % escaped_args
TypeError: unsupported operand type(s) for %: 'bytes' and 'tuple'

我得到：

oursqlx/compat.h:13:19: fatal error: mysql.h: No such file or directory
compilation terminated.
error: command 'gcc' failed with exit status 1

支气管炎

这安装没有错误，但我似乎无法找到我应该告诉SQLAlchemy寻找什么。在相应的

settings.ini

文件中，我尝试了：

sqlalchemy.url = mysql+myconnpy://...

还有很多其他的事情。谷歌在这个问题上让我失望了

更新-进步的表象

我已成功安装了我们的SQL生成依赖项：

sudo aptitude install python-pip libmysqlclient-dev

然后我下载了我们的SQL0.9.3并运行：

setup.py install

结果如下：

cython not found, using previously-cython'd .c file.
running install
running build
running build_ext
running install_lib
copying build/lib.linux-x86_64-3.2/oursql.cpython-32mu.so -> /home/sheena/MegaCatalogue/env/lib/python3.2/site-packages
running install_egg_info
Writing /path/to/virtualenv/foo/lib/python3.2/site-packages/oursql-0.9.3.egg-info

我打开了一个shell，显然该模块不存在——无论如何它都无法导入。但出于某种原因，如果我说help（）然后是modules，它就会被列出

cython not found, using previously-cython'd .c file.
running install
running build
running build_ext
running install_lib
copying build/lib.linux-x86_64-3.2/oursql.cpython-32mu.so -> /home/sheena/MegaCatalogue/env/lib/python3.2/site-packages
running install_egg_info
Writing /path/to/virtualenv/foo/lib/python3.2/site-packages/oursql-0.9.3.egg-info