关于python：安装pyobjc时出错：Anaconda2.1 python3.4或2.7，OSX 10.9

Error installing pyobjc: Anaconda2.1 python3.4 or 2.7, OSX 10.9

sudo pip install pyobjc返回：

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File"/Users/USER/anaconda/lib/python2.7/subprocess.py", line 573, in check_output
raise CalledProcessError(retcode, cmd, output=output)
subprocess.CalledProcessError: Command '['/usr/bin/xcodebuild', '-version', '-sdk', 'macosx', 'Path']' returned non-zero exit status 1

----------------------------------------
Command"python setup.py egg_info" failed with error code 1 in /private/var/folders/48/0c48tlds0knggddqs9lwf5900000gn/T/pip-build-RZEwHr/pyobjc-core

两者都有

1	easy_install -U pyobjc

和

1	python install setup.py install

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xcode-select: error: tool 'xcodebuild' requires Xcode, but active developer directory '/Library/Developer/CommandLineTools' is a command line tools instance
Traceback (most recent call last):
File"setup.py", line 185, in <module>
keywords=['Objective-C', 'bridge', 'Cocoa'],

......更多的输出线......
在负载中输入文件"/Users/USER/anaconda/lib/python2.7/pickle.py"，第1382行
返回Unpickler(文件).load()
文件"/Users/USER/anaconda/lib/python2.7/pickle.py"，第858行，载入中
dispatchkey
在load_reduce中输入文件"/Users/USER/anaconda/lib/python2.7/pickle.py"，第1133行
value = func(* args)
TypeError：init()至少需要3个参数(给定1个)

至少还有一些人遇到过类似的问题：
错误在OSX 10.10.2上的Anaconda python上安装pyobjc

有人解决了吗？