Question

我正在使用OSX 10.8和PyCharm来处理Python开发项目。我已经使用网站上的说明为mac安装了MySQL-python

http://blog.infoentropy.com/MySQL-python_EnvironmentError_mysql_config_not_found

但是，运行项目会给我这个错误：

django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb module: dlopen(/Users/ashishagarwal/.python-eggs/MySQL_python-1.2.3-py2.7-macosx-10.6-intel.egg-tmp/_mysql.so, 2): Symbol not found: _mysql_affected_rows
  Referenced from: /Users/ashishagarwal/.python-eggs/MySQL_python-1.2.3-py2.7-macosx-10.6-intel.egg-tmp/_mysql.so
  Expected in: flat namespace
 in /Users/ashishagarwal/.python-eggs/MySQL_python-1.2.3-py2.7-macosx-10.6-intel.egg-tmp/_mysql.so

错误中提到的文件存在于该位置 - /Users/ashishagarwal/.python-eggs/MySQL_python-1.2.3-py2.7-macosx-10.6-intel.egg-tmp/_mysql.so

整个错误消息是 -

/usr/local/bin/python2.7-32 /Users/ashishagarwal/Optimus/MashPotato/backend/mashpotato/manage.py testserver --addrport 8000
Running on development server
Traceback (most recent call last):
  File "/Users/ashishagarwal/Optimus/MashPotato/backend/mashpotato/manage.py", line 10, in <module>
    execute_from_command_line(sys.argv)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/core/management/__init__.py", line 453, in execute_from_command_line
    utility.execute()
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/core/management/__init__.py", line 392, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/core/management/__init__.py", line 272, in fetch_command
    klass = load_command_class(app_name, subcommand)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/core/management/__init__.py", line 77, in load_command_class
    module = import_module('%s.management.commands.%s' % (app_name, name))
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/utils/importlib.py", line 35, in import_module
    __import__(name)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/south/management/commands/__init__.py", line 10, in <module>
    import django.template.loaders.app_directories
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/template/loaders/app_directories.py", line 23, in <module>
    mod = import_module(app)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/utils/importlib.py", line 35, in import_module
    __import__(name)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/contrib/admin/__init__.py", line 3, in <module>
    from django.contrib.admin.helpers import ACTION_CHECKBOX_NAME
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/contrib/admin/helpers.py", line 4, in <module>
    from django.contrib.admin.util import (flatten_fieldsets, lookup_field,
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/contrib/admin/util.py", line 6, in <module>
    from django.db import models
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/db/__init__.py", line 40, in <module>
    backend = load_backend(connection.settings_dict['ENGINE'])
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/db/__init__.py", line 34, in __getattr__
    return getattr(connections[DEFAULT_DB_ALIAS], item)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/db/utils.py", line 93, in __getitem__
    backend = load_backend(db['ENGINE'])
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/db/utils.py", line 27, in load_backend
    return import_module('.base', backend_name)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/utils/importlib.py", line 35, in import_module
    __import__(name)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/django/db/backends/mysql/base.py", line 17, in <module>
    raise ImproperlyConfigured("Error loading MySQLdb module: %s" % e)
django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb module: dlopen(/Users/ashishagarwal/.python-eggs/MySQL_python-1.2.3-py2.7-macosx-10.6-intel.egg-tmp/_mysql.so, 2): Symbol not found: _mysql_affected_rows
  Referenced from: /Users/ashishagarwal/.python-eggs/MySQL_python-1.2.3-py2.7-macosx-10.6-intel.egg-tmp/_mysql.so
  Expected in: flat namespace
 in /Users/ashishagarwal/.python-eggs/MySQL_python-1.2.3-py2.7-macosx-10.6-intel.egg-tmp/_mysql.so

Process finished with exit code 1

Answer 1

首先应该通过Homebrew安装MySQL，以使python-mysql在OS X上正常工作。

pip uninstall MySQL-python
brew install mysql
pip install MySQL-python

Answer 2

确保您拥有最新版本的Xcode，包括命令行工具。我只是从应用程序商店下载了2GB更新。我有一个类似的问题，特别是this，并修复了它。

干杯！

Answer 3

我很早以前用homebrew安装了mysql，所以当我在升级OSX之后遇到麻烦时，我再次用brew reinstall mysql@5.7（我运行5.7.10）重新安装了它，然后重新安装了MySQL-python，我希望它可以解决。遇到上述错误。

这确实让我大吃一惊，在花了几个小时之后，我不知道该怎么做，从源头和一切重建。尝试了其他适用于mysql的python应用程序，但这是同一回事。

我以某种方式意识到由MySQL-python构建的客户端使用了错误的版本，因此我检查了/usr/local/opt/mysql的链接位置和链接所在的位置，它已链接至我通过安装的先前版本dmg喜欢7年前！一旦我删除了该链接，然后运行brew link mysql，然后创建了一个新的virtualenv并从头开始安装了所有软件包，它终于可以工作了！

Answer 4

如果您使用python：

import mysql.connector

你必须首先下载mysql Connector这里是链接link

在mac上安装MySQL-python

4 个答案: