Python virtualenv在错误的位置查找以便于安装和维护；其他文件

不知怎的，我在mac上搞砸了python 2.7的安装，所以我尝试用“brew安装python”重新安装。现在，当我尝试创建一个新的virtualenv时，它抛出了一个关于找不到/bin/easy\u install的错误。easy_安装实际上位于/usr/local/bin/easy_安装中。如果我将其符号链接到/bin，virtualenv将以/bin/pip失败，依此类推-它查找的每个文件实际上都在/usr/local/bin而不是/bin

如何永久性地使virtualenv位于正确的位置：/usr/local/bin

$ virtualenv env
New python executable in /Users/myusername/code/lambda/env/bin/python2.7
Also creating executable in /Users/myusername/code/lambda/env/bin/python
Installing setuptools, pip, wheel...
  Complete output from command /Users/myusername/c...da/env/bin/python2.7 -c "import sys, pip; sys...d\"] + sys.argv[1:]))" setuptools pip wheel:
  Ignoring indexes: https://pypi.python.org/simple
Collecting setuptools
Collecting pip
Collecting wheel
Installing collected packages: setuptools, pip, wheel
Exception:
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/site-packages/virtualenv_support/pip-7.1.2-py2.py3-none-any.whl/pip/basecommand.py", line 211, in main
    status = self.run(options, args)
  File "/usr/local/lib/python2.7/site-packages/virtualenv_support/pip-7.1.2-py2.py3-none-any.whl/pip/commands/install.py", line 311, in run
    root=options.root_path,
  File "/usr/local/lib/python2.7/site-packages/virtualenv_support/pip-7.1.2-py2.py3-none-any.whl/pip/req/req_set.py", line 646, in install
    **kwargs
  File "/usr/local/lib/python2.7/site-packages/virtualenv_support/pip-7.1.2-py2.py3-none-any.whl/pip/req/req_install.py", line 803, in install
    self.move_wheel_files(self.source_dir, root=root)
  File "/usr/local/lib/python2.7/site-packages/virtualenv_support/pip-7.1.2-py2.py3-none-any.whl/pip/req/req_install.py", line 998, in move_wheel_files
    isolated=self.isolated,
  File "/usr/local/lib/python2.7/site-packages/virtualenv_support/pip-7.1.2-py2.py3-none-any.whl/pip/wheel.py", line 465, in move_wheel_files
    generated.extend(maker.make(spec))
  File "/usr/local/lib/python2.7/site-packages/virtualenv_support/pip-7.1.2-py2.py3-none-any.whl/pip/_vendor/distlib/scripts.py", line 353, in make
    self._make_script(entry, filenames, options=options)
  File "/usr/local/lib/python2.7/site-packages/virtualenv_support/pip-7.1.2-py2.py3-none-any.whl/pip/_vendor/distlib/scripts.py", line 257, in _make_script
    self._write_script(scriptnames, shebang, script, filenames, ext)
  File "/usr/local/lib/python2.7/site-packages/virtualenv_support/pip-7.1.2-py2.py3-none-any.whl/pip/_vendor/distlib/scripts.py", line 231, in _write_script
    self._fileop.write_binary_file(outname, script_bytes)
  File "/usr/local/lib/python2.7/site-packages/virtualenv_support/pip-7.1.2-py2.py3-none-any.whl/pip/_vendor/distlib/util.py", line 388, in write_binary_file
    with open(path, 'wb') as f:
IOError: [Errno 13] Permission denied: '/bin/easy_install'
----------------------------------------
...Installing setuptools, pip, wheel...done.
Traceback (most recent call last):
  File "/usr/local/bin/virtualenv", line 9, in <module>
    load_entry_point('virtualenv==13.2.0.dev0', 'console_scripts', 'virtualenv')()
  File "/usr/local/lib/python2.7/site-packages/virtualenv.py", line 699, in main
    symlink=options.symlink)
  File "/usr/local/lib/python2.7/site-packages/virtualenv.py", line 872, in create_environment
    install_wheel(to_install, py_executable, search_dirs)
  File "/usr/local/lib/python2.7/site-packages/virtualenv.py", line 837, in install_wheel
    'PIP_USER': '0'
  File "/usr/local/lib/python2.7/site-packages/virtualenv.py", line 777, in call_subprocess
    % (cmd_desc, proc.returncode))
OSError: Command /Users/myusername/c...da/env/bin/python2.7 -c "import sys, pip; sys...d\"] + sys.argv[1:]))" setuptools pip wheel failed with error code 2

但它应该在/usr/local/bin中查找，因为这是我现在唯一的简单安装，并且它可以工作：

$ which easy_install
/usr/local/bin/easy_install

$ easy_install
install_dir /usr/local/lib/python2.7/site-packages/
error: No urls, filenames, or requirements specified (see --help)

我曾经尝试过pip卸载virtualenv，然后pip安装virtualenv，但没有帮助-同样的问题

有人知道怎么解决这个问题吗

谢谢

====================

编辑：解决了！

---

尝试使用/usr/local/bin/virtualenv-2.7，效果如预期。我移动了/usr/local/bin/virtualenv，然后将/usr/local/bin/virtualenv-2.7符号链接回/usr/local/bin/virtualenv--现在看来世界上一切都很好。

解决了！尝试使用/usr/local/bin/virtualenv-2.7，效果如预期。我移动了/usr/local/bin/virtualenv，然后将/usr/local/bin/virtualenv-2.7符号链接回/usr/local/bin/virtualenv--现在看来世界上一切都很好。

我编译了自己的Python 3，然后安装了virtualenvwrapper。但在我从编译自己的Python转换到使用Python之后，我遇到了上述问题中描述的问题

好像是

出了什么事virtualenv脚本的一部分

我得到的错误如下：

nb@ubuntu-0xA520322HC30H:~/proj/redis-py$ mkvirtualenv --python='/usr/bin/python3' redispytest
bash: /home/nb/.local/bin/virtualenv: /usr/local/bin/python3.6: bad interpreter: No such file or directory

我的系统Python设置具有以下符号链接和Python位置：

nb@ubuntu-0xA520322HC30H:~/proj/redis-py$ ls -la /usr/bin/python3
lrwxrwxrwx 1 root root 9 Feb  8 11:43 /usr/bin/python3 -> python3.5
nb@ubuntu-0xA520322HC30H:~/proj/redis-py$ ls -la /usr/bin/python3.5
-rwxr-xr-x 2 root root 4464400 Nov 28 08:53 /usr/bin/python3.5
nb@ubuntu-0xA520322HC30H:~/proj/redis-py$ which python3.5
/usr/bin/python3.5
nb@ubuntu-0xA520322HC30H:~/proj/redis-py$ ls -la /usr/bin/python3.5
-rwxr-xr-x 2 root root 4464400 Nov 28 08:53 /usr/bin/python3.5
nb@ubuntu-0xA520322HC30H:~/proj/redis-py$ ls -la /usr/bin/python3.6
-rwxr-xr-x 2 root root 4695328 Jan 28 10:49 /usr/bin/python3.6
nb@ubuntu-0xA520322HC30H:~/proj/redis-py$ which virtualenv
/home/nb/.local/bin//virtualenv

在/home/nb/.local/bin/imk_中：

nb@ubuntu-0xA520322HC30H:~/proj/redis-py$ cd ~/.local/bin
nb@ubuntu-0xA520322HC30H:~/.local/bin$ ls
pbr  pip2    pip3    virtualenv        virtualenvwrapper_lazy.sh
pip  pip2.7  pip3.5  virtualenv-clone  virtualenvwrapper.sh

我想知道代码中这个神秘而又完全不存在的/usr/local/bin/python3.6在哪里

所以我安装了一个全文搜索工具，并在~/.local文件夹中查找它

nb@ubuntu-0xA520322HC30H:~$ cd .local
nb@ubuntu-0xA520322HC30H:~/.local$ sudo apt-get install --quiet --quiet silversearcher-ag
nb@ubuntu-0xA520322HC30H:~/.local$ ag '/usr/local/bin/python3.6'
bin/virtualenv-clone
1:#!/usr/local/bin/python3.6

bin/pbr
1:#!/usr/local/bin/python3.6

看起来有两处是对Python的静态引用

我现在有两个选择：

我可以编辑其中的/usr/local/bin/python3.6文本，以参考/usr/bin/python3.6

我可以从
/usr/local/bin/python3.6
->
/usr/bin/python3.6

对于
bin/virtualenv克隆
文件，我选择了选项1：

但我也做了选择2，以防这个问题在我的系统的其他地方存在

nb@ubuntu-0xA520322HC30H:~$ sudo ln -s /usr/bin/python3.6 /usr/local/bin/python3.6

好吧，不管是什么，这都奏效了：

nb@ubuntu-0xA520322HC30H:~/.local$ mkvirtualenv --python='/usr/bin/python3' redispytest
Running virtualenv with interpreter /usr/bin/python3
Using base prefix '/usr'
New python executable in /home/nb/Envs/redispytest/bin/python3
Also creating executable in /home/nb/Envs/redispytest/bin/python
Installing setuptools, pip, wheel...done.
virtualenvwrapper.user_scripts creating /home/nb/Envs/redispytest/bin/predeactivate
virtualenvwrapper.user_scripts creating /home/nb/Envs/redispytest/bin/postdeactivate
virtualenvwrapper.user_scripts creating /home/nb/Envs/redispytest/bin/preactivate
virtualenvwrapper.user_scripts creating /home/nb/Envs/redispytest/bin/postactivate
virtualenvwrapper.user_scripts creating /home/nb/Envs/redispytest/bin/get_env_details
(redispytest) nb@ubuntu-0xA520322HC30H:~/.local$

总结：找出您的virtualenv尝试使用的解释器位置，并将该位置与实际Python进行符号链接

您需要这样做的原因是，至少有几个virtualenv位置将有一个
#行，该行引用特定位置，但如果您从编译自己的Python切换到使用PPA，则不会更改

起初，我对这样做犹豫不决，因为我更喜欢让包管理器处理这类事情，而不是让我的路径太复杂。但似乎真的没有其他方法来解决这个问题。我尝试卸载并重新安装了
virtualenv
和
virtualenvwrapper
，但没有成功

嗯嗯。。。在my.local/bin中有pbr。下一步是什么，我的本地/冰箱？该死的时髦人士。
/，这可能是吹毛求疵，但我认为这样一个好问题应该有一个更具疑问的标题。这样其他像我这样迷路的人会更快地找到它。您能否将标题更改为“如何使virtualenv在Python中始终处于正确的位置：/usr/local/bin？”
nb@ubuntu-0xA520322HC30H:~/.local$ mkvirtualenv --python='/usr/bin/python3' redispytest
Running virtualenv with interpreter /usr/bin/python3
Using base prefix '/usr'
New python executable in /home/nb/Envs/redispytest/bin/python3
Also creating executable in /home/nb/Envs/redispytest/bin/python
Installing setuptools, pip, wheel...done.
virtualenvwrapper.user_scripts creating /home/nb/Envs/redispytest/bin/predeactivate
virtualenvwrapper.user_scripts creating /home/nb/Envs/redispytest/bin/postdeactivate
virtualenvwrapper.user_scripts creating /home/nb/Envs/redispytest/bin/preactivate
virtualenvwrapper.user_scripts creating /home/nb/Envs/redispytest/bin/postactivate
virtualenvwrapper.user_scripts creating /home/nb/Envs/redispytest/bin/get_env_details
(redispytest) nb@ubuntu-0xA520322HC30H:~/.local$