無效語法類模板（元類= _TemplateMetaclass）與mod_wsgi的，apache和SQLAlchemy的

Question

我有一個劇本，我導入：

from bottle import route, request 
from sqlalchemy import create_engine, MetaData 
from sqlalchemy.ext.declarative import declarative_base 
from sqlalchemy.orm import sessionmaker 
from sqlalchemy import Table, Column, Integer 
import xml.etree.cElementTree as ET 

@route('/getmember') 
def get_member(): 
    pass 
run(host='localhost', port=8080, reloader=True) 

我可以用瓶子搭建Web服務器成功運行此腳本：$python3.2 getmember.py

上述工作完成後我想用Apache和mod_wsgi運行應用程序，我創建一個名爲adapter.wsgi腳本：

import sys, os, bottle 
sys.path = ['/var/www/getmember/'] + sys.path 
os.chdir(os.path.dirname(__file__)) 
import getmember 
application = bottle.default_app() 

在Apache中，我有：

WSGIDaemonProcess getmember user=www-data group=www-data processes=1 threads=5 python-path=/usr/lib/python3.2/site-packages 
WSGIScriptAlias /getmember /var/www/idcheck/adapter.wsgi 
<Directory /var/www/getmember> 
    WSGIProcessGroup getmember 
    WSGIApplicationGroup %{GLOBAL} 
    Order deny,allow 
    Allow from all 
</Directory> 

當我運行使用瀏覽器上的這個腳本：localhost/getmember，我得到一個HTTP 200錯誤和Apache錯誤日誌顯示：

mod_wsgi (pid=10271): Exception occurred processing WSGI script '/var/www/getmember/adapter.wsgi'. 
Traceback (most recent call last): 
    File "/var/www/getmember/adapter.wsgi", line 7, in <module> 
    import getmember # This loads your application 
    File "/var/www/getmember/getmember.py", line 10, in <module> 
    from sqlalchemy import create_engine, MetaData 
    File "/usr/lib/python3.2/site-packages/SQLAlchemy-0.8.0b2-py3.2.egg/sqlalchemy/__init__.py", line 10, in <module> 
    from .sql import (
    File "/usr/lib/python3.2/site-packages/SQLAlchemy-0.8.0b2-py3.2.egg/sqlalchemy/sql/__init__.py", line 7, in <module> 
    from .expression import (
    File "/usr/lib/python3.2/site-packages/SQLAlchemy-0.8.0b2-py3.2.egg/sqlalchemy/sql/expression.py", line 34, in <module> 
    from .. import util, exc, inspection 
    File "/usr/lib/python3.2/site-packages/SQLAlchemy-0.8.0b2-py3.2.egg/sqlalchemy/util/__init__.py", line 7, in <module> 
    from .compat import callable, cmp, reduce, defaultdict, py25_dict, \\ 
    File "/usr/lib/python3.2/site-packages/SQLAlchemy-0.8.0b2-py3.2.egg/sqlalchemy/util/compat.py", line 100, in <module> 
    from urllib.parse import parse_qsl 
    ImportError: No module named parse 

那麼，爲什麼它的工作在正常的python調用下（意思是所有的庫和包都可以），但在Apache下它會拋出這個錯誤？我感覺它無法找到該軟件包需要的路徑，但不知道如何添加它。

編輯

我跑了import sys和print sys.path讓所有當我運行python3.2環境已加載的路徑。我有多個路徑，我加入到了Python路徑中的Apache：

WSGIDaemonProcess idcheck user=www-data group=www-data processes=1 threads=5 python-path=/usr/local/lib/python3.2/dist-packages/distribute-0.6.34-py3.2.egg:/usr/local/lib/python3.2/dist-packages/logilab_common-0.58.3-py3.2.egg:/usr/local/lib/python3.2/dist-packages/logilab_astng-0.24.1-py3.2.egg:/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.8.0b2-py3.2.egg:/usr/local/lib/python3.2/dist-packages/psycopg2-2.4.6-py3.2-linux-x86_64.egg:/usr/local/lib/python3.2/dist-packages/pip-1.2.1-py3.2.egg:/usr/local/lib/python3.2/dist-packages/sqlautocode-0.6b1-py3.2.egg:/usr/lib/python3.2:/usr/lib/python3.2/plat-linux2:/usr/lib/python3.2/lib-dynload:/usr/local/lib/python3.2/dist-packages:/usr/lib/python3/dist-packages 

就這樣，早期的錯誤消失了，我得到了無效的語法這個新的。有沒有用SQLAlchemy和mod_wsgi + Apache破解的東西？

mod_wsgi (pid=21339): Target WSGI script '/var/www/getmember/adapter.wsgi' cannot be loaded as Python module. 
mod_wsgi (pid=21339): Exception occurred processing WSGI script '/var/www/getmember/adapter.wsgi'. 
Traceback (most recent call last): 
    File "/var/www/getmember/adapter.wsgi", line 6, in <module> 
    import getmember # This loads your application 
    File "/var/www/getmember/getmember.py", line 10, in <module> 
    from sqlalchemy import create_engine, MetaData 
    File "/usr/local/lib/python3.2/dist-packages/SQLAlchemy-0.8.0b2-py3.2.egg/sqlalchemy/__init__.py", line 7, in <module> 
    import inspect as _inspect 
    File "/usr/lib/python3.2/inspect.py", line 36, in <module> 
    import string 
    File "/usr/lib/python3.2/string.py", line 89 
    class Template(metaclass=_TemplateMetaclass): 
          ^
SyntaxError: invalid syntax 

Answer 1

也許Apache正在使用版本2的Python可執行文件？您可以檢查apache用戶的搜索路徑，或者查看WSGI指令WSGIPythonHome/WSGIPythonExecutable。

嘗試：

import sys 

-snip-

@route('/test', method='GET') 
def test(): 
    return sys.version 

或者：

#grep Python /var/log/httpd/error_log