python manage.py sql 抛出找不到合适的图像异常

Question

我的 macbook pro 在 Intel 处理器上运行 OS X 10.7。我已经安装了 Django 1.3.1、MySQL-python 1.2.3。所有的软件包都安装得很好。当我执行命令“python manage.py sql poll”时，我遇到了以下异常。

Traceback (most recent call last):
  File "manage.py", line 14, in <module>
    execute_manager(settings)
  File "/Library/Python/2.7/site-packages/django/core/management/__init__.py", line 438, in execute_manager
    utility.execute()
  File "/Library/Python/2.7/site-packages/django/core/management/__init__.py", line 379, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/Library/Python/2.7/site-packages/django/core/management/__init__.py", line 261, in fetch_command
    klass = load_command_class(app_name, subcommand)
  File "/Library/Python/2.7/site-packages/django/core/management/__init__.py", line 67, in load_command_class
    module = import_module('%s.management.commands.%s' % (app_name, name))
  File "/Library/Python/2.7/site-packages/django/utils/importlib.py", line 35, in import_module
    __import__(name)
  File "/Library/Python/2.7/site-packages/django/core/management/commands/sql.py", line 4, in <module>
    from django.core.management.sql import sql_create
  File "/Library/Python/2.7/site-packages/django/core/management/sql.py", line 6, in <module>
    from django.db import models
  File "/Library/Python/2.7/site-packages/django/db/__init__.py", line 78, in <module>
    connection = connections[DEFAULT_DB_ALIAS]
  File "/Library/Python/2.7/site-packages/django/db/utils.py", line 93, in __getitem__
    backend = load_backend(db['ENGINE'])
  File "/Library/Python/2.7/site-packages/django/db/utils.py", line 33, in load_backend
    return import_module('.base', backend_name)
  File "/Library/Python/2.7/site-packages/django/utils/importlib.py", line 35, in import_module
    __import__(name)
  File "/Library/Python/2.7/site-packages/django/db/backends/mysql/base.py", line 14, in <module>
    raise ImproperlyConfigured("Error loading MySQLdb module: %s" % e)
django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb module: dlopen(/Users/khoa/.python-eggs/MySQL_python-1.2.3-py2.7-macosx-10.7-intel.egg-tmp/_mysql.so, 2): no suitable image found.  Did find:
    /Users/khoa/.python-eggs/MySQL_python-1.2.3-py2.7-macosx-10.7-intel.egg-tmp/_mysql.so: mach-o, but wrong architecture

Answer 1

您正在使用的 Python（可能是 Apple 提供的 Python 2.7.1）很有可能在 64 位模式下运行，但您安装的 MySQLdb 扩展模块仅是 32 位。或者，可能，反过来。这个 shell 命令的输出应该告诉你扩展模块是为什么架构编译的：

file /Users/khoa/.python-eggs/MySQL_python-1.2.3-py2.7-macosx-10.7-intel.egg-tmp/_mysql.so

您安装的 MySQLdb 扩展模块和 MySQL 客户端库必须与您正在使用的 Python 实例的架构具有共同的架构。