xcode-选择PyObc-core安装过程中的错误

Question

我正在尝试安装pyobjc内核，这是pyautogui的一个要求。我在安装时遇到以下错误。我已经使用更新了setuptools

pip3 install --upgrade setuptools

而且还利用

sudo python3 ez_setup.py

我在OSX Yosemite上使用Python 3.5。

我看到下面的代码对xcode有要求。这就是为什么需要xcode进行安装的原因吗？

pip3 install pyobjc-core
Collecting pyobjc-core
  Using cached pyobjc-core-3.1.1.tar.gz
    Complete output from command python setup.py egg_info:
    running egg_info
    creating pip-egg-info/pyobjc_core.egg-info
    writing include/pyobjc-compat.h to pip-egg-info/pyobjc_core.egg-info/include/pyobjc-compat.h
    writing include/pyobjc-api.h to pip-egg-info/pyobjc_core.egg-info/include/pyobjc-api.h
    writing namespace_packages to pip-egg-info/pyobjc_core.egg-info/namespace_packages.txt
    writing top-level names to pip-egg-info/pyobjc_core.egg-info/top_level.txt
    writing dependency_links to pip-egg-info/pyobjc_core.egg-info/dependency_links.txt
    writing pip-egg-info/pyobjc_core.egg-info/PKG-INFO
    writing manifest file 'pip-egg-info/pyobjc_core.egg-info/SOURCES.txt'
    warning: manifest_maker: standard file '-c' not found

    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 "", line 1, in 
      File "/private/var/folders/zw/573csqzn0pnbjkb44gw2s7800000gn/T/pip-build-72bxsxfe/pyobjc-core/setup.py", line 696, in 
        **parse_package_metadata()
      File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/distutils/core.py", line 148, in setup
        dist.run_commands()
      File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/distutils/dist.py", line 955, in run_commands
        self.run_command(cmd)
      File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/distutils/dist.py", line 974, in run_command
        cmd_obj.run()
      File "/private/var/folders/zw/573csqzn0pnbjkb44gw2s7800000gn/T/pip-build-72bxsxfe/pyobjc-core/setup.py", line 371, in run
        egg_info.egg_info.run(self)
      File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/setuptools-23.0.0-py3.5.egg/setuptools/command/egg_info.py", line 193, in run
      File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/setuptools-23.0.0-py3.5.egg/setuptools/command/egg_info.py", line 216, in find_sources
      File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/setuptools-23.0.0-py3.5.egg/setuptools/command/egg_info.py", line 300, in run
      File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/setuptools-23.0.0-py3.5.egg/setuptools/command/egg_info.py", line 329, in add_defaults
      File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/setuptools-23.0.0-py3.5.egg/setuptools/command/sdist.py", line 132, in add_defaults
      File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/distutils/cmd.py", line 299, in get_finalized_command
        cmd_obj.ensure_finalized()
      File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/distutils/cmd.py", line 107, in ensure_finalized
        self.finalize_options()
      File "/private/var/folders/zw/573csqzn0pnbjkb44gw2s7800000gn/T/pip-build-72bxsxfe/pyobjc-core/setup.py", line 525, in finalize_options
        universal_newlines=True).strip()
      File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/subprocess.py", line 629, in check_output
        **kwargs).stdout
      File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/subprocess.py", line 711, in run
        output=stdout, stderr=stderr)
    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/zw/573csqzn0pnbjkb44gw2s7800000gn/T/pip-build-72bxsxfe/pyobjc-core/

Answer 1

错误很明显：你需要xcode...

这很傻，但不幸的是，有这些开发工具与它联系在一起，因为许多包需要开发工具（在你的特定情况下，xcodebuild需要它），你必须安装xcode（不管怎样，它是免费的）