升级ML后，python的开发环境悲剧了。

[paloalto]

(︸_︸) 不知道哪里出了问题。

以前好不容易才搭好的，最近用着特顺手，结果升级之后发现少了好多东西？（本来只剩5G空间的，升级之后变成了50多G）。mysql之类的好在，但是web.py、mysqldb什么的都需要重新装。/library/python/2.7/site-packages里空空如也。

LZ正在苦逼的装包中。

( >﹏<。)

[paloalto]

mysql-python还装不上。。。

$ sudo easy_install mysql-python
Searching for mysql-python
Reading http://pypi.python.org/simple/mysql-python/
Reading http://sourceforge.net/projects/mysql-python/
Reading http://sourceforge.net/projects/mysql-python
Best match: MySQL-python 1.2.3
Downloading http://download.sourceforge.net/sourceforge/mysql-python/MySQL-python-1.2.3.tar.gz
Processing MySQL-python-1.2.3.tar.gz
Running MySQL-python-1.2.3/setup.py -q bdist_egg --dist-dir /tmp/easy_install-KsFBj4/MySQL-python-1.2.3/egg-dist-tmp-5MHDrO
warning: no files found matching 'MANIFEST'
warning: no files found matching 'ChangeLog'
warning: no files found matching 'GPL'
unable to execute clang: No such file or directory
error: Setup script exited with error: command 'clang' failed with exit status 1

[pepsin]

Ruby的情况是有些需要gcc的因为gcc丢失出错了，Xcode把command line tool装上然后重新link一下就好了。或许你的一些情况类似这个？

[nichan]

开虚拟机吧233

[nichan]

正经的说， 开虚拟机用linux做， 坏了大不了重开一个， 自己的系统折腾起来挺麻烦的。

[paloalto]

@pepsin 新系统似乎是不用GCC，改用Clang了，本来我正在研究怎么装Clang，但是看了你的恢复之后决定先装上command line tool，但是不知道你说的Link一下是指什么?还请详细赐教。
@nichan 额..我也知道在虚拟机里开发是最合适的，但是还是习惯在mac里做。。。感觉每次都要开虚拟机好麻烦。。

[cyberscorpio]

也在苦逼的下载 xcode，这个速度啊，看着真是令人浑身乏力，忧从中来，不可断绝

[paloalto]

补记一下后续：

command line tool装上之后，用easy_install安装mysql-python:

$ sudo easy_install mysql-python
Password:
Searching for mysql-python
Reading http://pypi.python.org/simple/mysql-python/
Reading http://sourceforge.net/projects/mysql-python/
Reading http://sourceforge.net/projects/mysql-python
Best match: MySQL-python 1.2.3
Downloading http://download.sourceforge.net/sourceforge/mysql-python/MySQL-python-1.2.3.tar.gz
Processing MySQL-python-1.2.3.tar.gz
Running MySQL-python-1.2.3/setup.py -q bdist_egg --dist-dir /tmp/easy_install-XKbf0S/MySQL-python-1.2.3/egg-dist-tmp-Y1AssU
warning: no files found matching 'MANIFEST'
warning: no files found matching 'ChangeLog'
warning: no files found matching 'GPL'
clang: warning: argument unused during compilation: '-mno-fused-madd'
In file included from _mysql.c:36:
/usr/local/mysql-5.5.25-osx10.6-x86_64/include/my_config.h:329:11: warning: 'SIZEOF_SIZE_T' macro
redefined
#define SIZEOF_SIZE_T SIZEOF_LONG
^
/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7/pymacconfig.h:43:17: note:
previous definition is here
# define SIZEOF_SIZE_T 8
^
In file included from _mysql.c:36:
/usr/local/mysql-5.5.25-osx10.6-x86_64/include/my_config.h:422:9: warning: 'HAVE_WCSCOLL' macro redefined
#define HAVE_WCSCOLL
^
/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7/pyconfig.h:891:9: note:
previous definition is here
#define HAVE_WCSCOLL 1
^
_mysql.c:253:14: warning: implicit conversion loses integer precision: 'Py_ssize_t' (aka 'long') to 'int'
[-Wshorten-64-to-32]
cmd_argc = PySequence_Size(cmd_args);
~ ^~~~~~~~~~~~~~~~~~~~~~~~~
_mysql.c:278:12: warning: implicit conversion loses integer precision: 'Py_ssize_t' (aka 'long') to 'int'
[-Wshorten-64-to-32]
groupc = PySequence_Size(groups);
~ ^~~~~~~~~~~~~~~~~~~~~~~
_mysql.c:405:14: warning: implicit conversion loses integer precision: 'Py_ssize_t' (aka 'long') to 'int'
[-Wshorten-64-to-32]
int j, n2=PySequence_Size(fun);
~~ ^~~~~~~~~~~~~~~~~~~~
_mysql.c:986:9: warning: implicit conversion loses integer precision: 'unsigned long' to 'int'
[-Wshorten-64-to-32]
len = mysql_real_escape_string(&(self->connection), out, in, size);
~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
_mysql.c:988:9: warning: implicit conversion loses integer precision: 'unsigned long' to 'int'
[-Wshorten-64-to-32]
len = mysql_escape_string(out, in, size);
~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
_mysql.c:1016:9: warning: implicit conversion loses integer precision: 'Py_ssize_t' (aka 'long') to 'int'
[-Wshorten-64-to-32]
size = PyString_GET_SIZE(s);
~ ^~~~~~~~~~~~~~~~~~~~
/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7/stringobject.h:92:32: note:
expanded from macro 'PyString_GET_SIZE'
#define PyString_GET_SIZE(op) Py_SIZE(op)
^
/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7/object.h:116:56: note:
expanded from macro 'Py_SIZE'
#define Py_SIZE(ob) (((PyVarObject*)(ob))->ob_size)
~~~~~~~~~~~~~~~~~~~~~~^~~~~~~
_mysql.c:1025:9: warning: implicit conversion loses integer precision: 'unsigned long' to 'int'
[-Wshorten-64-to-32]
len = mysql_real_escape_string(&(self->connection), out+1, in, size);
~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
_mysql.c:1027:9: warning: implicit conversion loses integer precision: 'unsigned long' to 'int'
[-Wshorten-64-to-32]
len = mysql_escape_string(out+1, in, size);
~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
_mysql.c:1111:11: warning: implicit conversion loses integer precision: 'Py_ssize_t' (aka 'long') to 'int'
[-Wshorten-64-to-32]
if ((n = PyObject_Length(o)) == -1) goto error;
~ ^~~~~~~~~~~~~~~~~~
/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7/abstract.h:434:25: note:
expanded from macro 'PyObject_Length'
#define PyObject_Length PyObject_Size
^
_mysql.c:1298:10: warning: implicit conversion loses integer precision: 'size_t' (aka 'unsigned long') to
'int' [-Wshorten-64-to-32]
len = strlen(buf);
~ ^~~~~~~~~~~
_mysql.c:1300:10: warning: implicit conversion loses integer precision: 'size_t' (aka 'unsigned long') to
'int' [-Wshorten-64-to-32]
len = strlen(buf);
~ ^~~~~~~~~~~
_mysql.c:1336:11: warning: implicit conversion loses integer precision: 'size_t' (aka 'unsigned long') to
'int' [-Wshorten-64-to-32]
len = strlen(buf);
~ ^~~~~~~~~~~
_mysql.c:1338:11: warning: implicit conversion loses integer precision: 'size_t' (aka 'unsigned long') to
'int' [-Wshorten-64-to-32]
len = strlen(buf);
~ ^~~~~~~~~~~
_mysql.c:1421:10: warning: comparison of unsigned expression < 0 is always false [-Wtautological-compare]
if (how < 0 || how >= sizeof(row_converters)) {
~~~ ^ ~
16 warnings generated.
zip_safe flag not set; analyzing archive contents...
Adding MySQL-python 1.2.3 to easy-install.pth file

Installed /Library/Python/2.7/site-packages/MySQL_python-1.2.3-py2.7-macosx-10.8-intel.egg
Processing dependencies for mysql-python
Finished processing dependencies for mysql-python

虽然有一些奇怪的东西出现，但好歹装上了。

接着去web.py下运行project试试能不能启动:

$ python application.py
Traceback (most recent call last):
File "application.py", line 13, in <module>
import config
File "/Users/hanjiyun/Project/sputnik/config.py", line 10, in <module>
db = web.database(dbn='mysql', db='mlss', user='sputnik', passwd='paloalto-3859675')
File "/Library/Python/2.7/site-packages/web.py-0.37-py2.7.egg/web/db.py", line 1143, in database
return _databases[dbn](**params)
File "/Library/Python/2.7/site-packages/web.py-0.37-py2.7.egg/web/db.py", line 975, in __init__
import MySQLdb as db
File "build/bdist.macosx-10.8-intel/egg/MySQLdb/__init__.py", line 19, in <module>
File "build/bdist.macosx-10.8-intel/egg/_mysql.py", line 7, in <module>
File "build/bdist.macosx-10.8-intel/egg/_mysql.py", line 6, in __bootstrap__
ImportError: dlopen(/Users/hanjiyun/.python-eggs/MySQL_python-1.2.3-py2.7-macosx-10.8-intel.egg-tmp/_mysql.so, 2): Library not loaded: libmysqlclient.18.dylib
Referenced from: /Users/hanjiyun/.python-eggs/MySQL_python-1.2.3-py2.7-macosx-10.8-intel.egg-tmp/_mysql.so
Reason: image not found

悲剧，后来在 http://yan-yan.info/2011/install-mysql-5.5-on-mac-os-10.7-with-python-support.html 找到办法：

在/etc的profile文件中加入一行
export DYLD_LIBRARY_PATH="$DYLD_LIBRARY_PATH:/usr/local/mysql/lib"

然后重启电脑。

再次运行项目，发现无法与Mysql连接，我这才想起来mysql还没启动，我的mysql版本是mysql-5.5.25-osx10.6-x86_64，需要通过“系统偏好设置” 中的MySQL面板来启动。



但是启动的时候发现报错：

Warning: The /usr/local/mysql/data directory is not owned by the 'mysql' or '_mysql' user

在stackoverflow找到解决办法：
http://stackoverflow.com/questions/4762543/mysql-what-user-should-own-usr-local-mysql-on-mac

按照帖子中说的，运行命令：
sudo chown -R _mysql:wheel /usr/local/mysql/data
Mysql顺利启动。

再次运行项目：
$ python application.py
http://0.0.0.0:8080/


终于搞定了。


绳命在于折腾。

[paloalto]

刚又有新发现。

上面提到
————
在/etc的profile文件中加入一行
export DYLD_LIBRARY_PATH="$DYLD_LIBRARY_PATH:/usr/local/mysql/lib"
————

刚才在运行nginx是发现有点小问题：

$ sudo nginx
dyld: DYLD_ environment variables being ignored because main executable (/usr/bin/sudo) is setuid or setgid

多了一行提示，但是没什么影响。

似乎是profile中的那行DYLD_LIBRARY_PATH的原因，我现在注释掉了，明天重新开机后看看会有什么情况。

[ratazzi]

@paloalto 别用环境变量了，直接
sudo ln -s /usr/local/mysql/lib/libmysqlclient.18.dylib /usr/lib/libmysqlclient.18.dylib 做个软连接就行了

[rikugun]

开发这个玩意，我建议是用 home brew 了， 大部分软件都是新的，而且 prefix 是 /usr/local

,这样升级系统也就是 改下 PATH就可以了。
我从 lion 升到 ml 就没太多问题

[yaozhifeng]

virtualenv 应该不受影响吧

[jfding]

mac下用python上virtualenv啊，“千万别”直接往系统site目录里装东西

[Rabbit52]

@paloalto 我跟楼主过程一样，但是我项目跑不起来
Traceback (most recent call last):
File "/Library/Python/2.7/site-packages/web.py-0.37-py2.7.egg/web/wsgiserver/__init__.py", line 1245, in communicate
req.respond()
File "/Library/Python/2.7/site-packages/web.py-0.37-py2.7.egg/web/wsgiserver/__init__.py", line 775, in respond
self.server.gateway(self).respond()
File "/Library/Python/2.7/site-packages/web.py-0.37-py2.7.egg/web/wsgiserver/__init__.py", line 2018, in respond
response = self.req.server.wsgi_app(self.env, self.start_response)
File "/Library/Python/2.7/site-packages/web.py-0.37-py2.7.egg/web/httpserver.py", line 306, in __call__
return self.app(environ, xstart_response)
File "/Library/Python/2.7/site-packages/web.py-0.37-py2.7.egg/web/httpserver.py", line 274, in __call__
return self.app(environ, start_response)
File "/Library/Python/2.7/site-packages/web.py-0.37-py2.7.egg/web/application.py", line 279, in wsgi
result = self.handle_with_processors()
File "/Library/Python/2.7/site-packages/web.py-0.37-py2.7.egg/web/application.py", line 249, in handle_with_processors
return process(self.processors)
File "/Library/Python/2.7/site-packages/web.py-0.37-py2.7.egg/web/application.py", line 246, in process
raise self.internalerror()
File "/Library/Python/2.7/site-packages/web.py-0.37-py2.7.egg/web/application.py", line 478, in internalerror
return debugerror.debugerror()
File "/Library/Python/2.7/site-packages/web.py-0.37-py2.7.egg/web/debugerror.py", line 305, in debugerror
return web._InternalError(djangoerror())
File "/Library/Python/2.7/site-packages/web.py-0.37-py2.7.egg/web/debugerror.py", line 290, in djangoerror
djangoerror_r = Template(djangoerror_t, filename=__file__, filter=websafe)
File "/Library/Python/2.7/site-packages/web.py-0.37-py2.7.egg/web/template.py", line 846, in __init__
code = self.compile_template(text, filename)
File "/Library/Python/2.7/site-packages/web.py-0.37-py2.7.egg/web/template.py", line 926, in compile_template
ast = compiler.parse(code)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/compiler/transformer.py", line 51, in parse
return Transformer().parsesuite(buf)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/compiler/transformer.py", line 128, in parsesuite
return self.transform(parser.suite(text))
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/compiler/transformer.py", line 124, in transform
return self.compile_node(tree)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/compiler/transformer.py", line 167, in compile_node
raise WalkerError, ('unexpected node type', n)
WalkerError: ('unexpected node type', 339)

楼主帮看看哇~？