无法安装 pipenv，无法升级 pip setuptools答案

【问题标题】：Unable to install pipenv, unable to upgrade pip's setup tools无法安装 pipenv，无法升级 pip setuptools
【发布时间】：2018-03-26 22:27:02
【问题描述】：

我正在尝试设置环境以在新笔记本电脑上执行一些 Python。我先做了brew install python3，然后去确保我用pip --version 安装了pip。终端说我没有，所以我做了brew install pip。

然后我去用pip install pipenv安装pipenv。我收到此错误消息：

Command "python setup.py egg_info" failed with error code 1 in /private/var/folders/9t/pk6bmgc968d_fys24blkrgc40000gn/T/pip-build-o6M3Ve/pipenv/.

搜索时，我看到有人说 pip 的设置工具需要用pip install --upgrade setuptools 更新。当我尝试时，我得到了一个很长的错误，我将在下面发布。我对这个有点不知所措，不知道从哪里开始。感谢您提供任何和所有帮助。

例外：

Traceback (most recent call last):
  File "/Library/Python/2.7/site-packages/pip-9.0.3-py2.7.egg/pip/basecommand.py", line 215, in main
    status = self.run(options, args)
  File "/Library/Python/2.7/site-packages/pip-9.0.3-py2.7.egg/pip/commands/install.py", line 342, in run
    prefix=options.prefix_path,
  File "/Library/Python/2.7/site-packages/pip-9.0.3-py2.7.egg/pip/req/req_set.py", line 778, in install
    requirement.uninstall(auto_confirm=True)
  File "/Library/Python/2.7/site-packages/pip-9.0.3-py2.7.egg/pip/req/req_install.py", line 754, in uninstall
    paths_to_remove.remove(auto_confirm)
  File "/Library/Python/2.7/site-packages/pip-9.0.3-py2.7.egg/pip/req/req_uninstall.py", line 115, in remove
    renames(path, new_path)
  File "/Library/Python/2.7/site-packages/pip-9.0.3-py2.7.egg/pip/utils/__init__.py", line 267, in renames
    shutil.move(old, new)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/shutil.py", line 299, in move
    copytree(src, real_dst, symlinks=True)
  File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/shutil.py", line 208, in copytree
    raise Error, errors

错误：

[('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/markers.pyc', '/var/folders/9t/pk6bmgc968d_fys24blkrgc40000gn/T/pip-Rp7V_U-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/markers.pyc', "[Errno 1] Operation not permitted: '/var/folders/9t/pk6bmgc968d_fys24blkrgc40000gn/T/pip-Rp7V_U-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/markers.pyc'"), ('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/__init__.py', '/var/folders/9t/pk6bmgc968d_fys24blkrgc40000gn/T/pip-Rp7V_U-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/__init__.py', "[Errno 1] Operation not permitted: '/var/folders/9t/pk6bmgc968d_fys24blkrgc40000gn/T/pip-Rp7V_U-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/__init__.py'"), ('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/markers.py', '/var/folders/9t/pk6bmgc968d_fys24blkrgc40000gn/T/pip-Rp7V_U-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/markers.py', "[Errno 1] Operation not permitted: '/var/folders/9t/pk6bmgc968d_fys24blkrgc40000gn/T/pip-Rp7V_U-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/markers.py'"), ('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/__init__.pyc', '/var/folders/9t/pk6bmgc968d_fys24blkrgc40000gn/T/pip-Rp7V_U-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/__init__.pyc', "[Errno 1] Operation not permitted: '/var/folders/9t/pk6bmgc968d_fys24blkrgc40000gn/T/pip-Rp7V_U-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib/__init__.pyc'"), ('/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib', '/var/folders/9t/pk6bmgc968d_fys24blkrgc40000gn/T/pip-Rp7V_U-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib', "[Errno 1] Operation not permitted: '/var/folders/9t/pk6bmgc968d_fys24blkrgc40000gn/T/pip-Rp7V_U-uninstall/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/_markerlib'")]

【问题讨论】：

通过brew安装python3后，应该使用pip3或者软链接到pip，（不需要通过brew安装pip）可以参考我的另一个答案：@ 987654321@
@CSJ 我需要摆脱pip吗？
是的，按照下面提到的答案将其删除

标签： python python-3.x python-2.7 pip pipenv

【解决方案1】：

你已经安装了 Python 3，但是 pip 属于 Python 2。首先，卸载你已经安装的 pip。现在你应该安装 pip3，例如使用brew install pip3。但是，pip3 应该已经与 Python 3 一起安装了，所以首先要确保 pip3 确实没有安装。

【讨论】：