折腾：
【已解决】Mac本地用supervisor去管理gunicorn的Python3的Flask
期间发现：不知道何时，Mac默认的pip，竟然变成python3的了。
需要重新把Mac本地的实际上是pip3的pip去重新安装回来python2的pip
-》否则后续系统使用pip，也会出现问题的。
感觉像是：
【已解决】Mac本地安装Python3的pipenv虚拟环境
中的：
<code>python3 -m pip install --upgrade --force-reinstall pip </code>
而把原本是python2的pip，强制安装成python3的pip了？
参考之前的去看看：
<code>➜ robotDemo ll /usr/local/bin/pip* -rwxr-xr-x 1 crifan admin 235B 4 17 11:05 /usr/local/bin/pip -rwxr-xr-x 1 crifan admin 235B 4 17 10:18 /usr/local/bin/pip2 -rwxr-xr-x 1 crifan admin 235B 4 17 10:18 /usr/local/bin/pip2.7 lrwxr-xr-x 1 crifan admin 33B 4 17 10:52 /usr/local/bin/pip3 -> ../Cellar/python/3.6.4_4/bin/pip3 lrwxr-xr-x 1 crifan admin 35B 4 17 10:52 /usr/local/bin/pip3.6 -> ../Cellar/python/3.6.4_4/bin/pip3.6 </code>
貌似好似存在pip的啊
但是为何：
<code>➜ robotDemo which pip pip: aliased to noglob pip </code>
?
其他的好像都正常：
<code>➜ robotDemo which pip2 /usr/local/bin/pip2 ➜ robotDemo which pip3 /usr/local/bin/pip3 ➜ robotDemo which python2 python2 not found ➜ robotDemo which python /usr/bin/python ➜ robotDemo python --version Python 2.7.10 ➜ robotDemo which python3 /usr/local/bin/python3 ➜ robotDemo python3 --version Python 3.6.4 </code>
mac python3 pip change to python2
python – How to override the pip command to Python3.x instead of Python2.7? – Stack Overflow
好像就是用对应的版本（Python2 or Python3）强制重新安装就可以了？
去试试
<code>python2 -m pip install --upgrade --force-reinstall pip </code>
结果：
<code>➜ robotDemo python2 -m pip install --upgrade --force-reinstall pip zsh: command not found: python2 </code>
换成：
<code>python -m pip install --upgrade --force-reinstall pip </code>
结果：
<code>➜ robotDemo python -m pip install --upgrade --force-reinstall pip /usr/bin/python: No module named pip </code>
换成：
<code>python --upgrade --force-reinstall pip </code>
好像不太对。
pip command is mixed up in python2 and python3 · Issue #50607 · Homebrew/legacy-homebrew
也是说：
<code>python3 -m pip install -U --force-reinstall pip python -m pip install -U --force-reinstall pip </code>
需要先去解决：
python -m pip install No module named pip
python – ImportError: No module named pip when trying to install packages – Stack Overflow
python – Pip is not working: ImportError: No module named ‘pip._internal’ – Ask Ubuntu
算了去试试：
<code>➜ robotDemo brew install pip Error: No available formula with the name "pip" Homebrew provides pip via: `brew install python`. However you will then have two Pythons installed on your Mac, so alternatively you can install pip via the instructions at: https://pip.readthedocs.io/en/stable/installing/ ➜ robotDemo brew install python-pip Error: No available formula with the name "python-pip" ==> Searching for a previously deleted formula (in the last month)... Warning: homebrew/core is shallow clone. To get complete history run: git -C "$(brew --repo homebrew/core)" fetch --unshallow Error: No previously deleted formula found. ==> Searching for similarly named formulae... ==> Searching local taps... Error: No similarly named formulae found. ==> Searching taps... ==> Searching taps on GitHub... Error: No formulae found in taps. </code>
去搜：
pip: aliased to noglob pip
alias – bypass ‘noglob’ for ‘which’ in zsh? – Super User
oh my zsh – zsh command cannot found pip – Stack Overflow
mac change pip3 to pip
How to change pip3 command to be pip? – Stack Overflow
QuickTip: How Do I Install pip on macOS or OS X?
再去看看：
<code>➜ robotDemo where pip pip: aliased to noglob pip /usr/local/bin/pip ➜ robotDemo which pip pip: aliased to noglob pip ➜ robotDemo ls -lh /usr/local/bin/pip* -rwxr-xr-x 1 crifan admin 235B 4 17 11:05 /usr/local/bin/pip -rwxr-xr-x 1 crifan admin 235B 4 17 10:18 /usr/local/bin/pip2 -rwxr-xr-x 1 crifan admin 235B 4 17 10:18 /usr/local/bin/pip2.7 lrwxr-xr-x 1 crifan admin 33B 4 17 10:52 /usr/local/bin/pip3 -> ../Cellar/python/3.6.4_4/bin/pip3 lrwxr-xr-x 1 crifan admin 35B 4 17 10:52 /usr/local/bin/pip3.6 -> ../Cellar/python/3.6.4_4/bin/pip3.6 ➜ robotDemo /usr/local/bin/pip --version pip 10.0.0 from /usr/local/lib/python3.6/site-packages/pip (python 3.6) ➜ robotDemo /usr/local/bin/pip2 --version zsh: /usr/local/bin/pip2: bad interpreter: /usr/local/opt/python/bin/python2.7: no such file or directory ➜ robotDemo /usr/local/bin/pip2.7 --version zsh: /usr/local/bin/pip2.7: bad interpreter: /usr/local/opt/python/bin/python2.7: no such file or directory ➜ robotDemo /usr/local/bin/pip3 --version pip 10.0.0 from /usr/local/lib/python3.6/site-packages/pip (python 3.6) </code>
看来是：
此处的python2的pip就有问题了。
mac python 重装 pip
mac python install pip
python – How do I install pip on macOS or OS X? – Stack Overflow
都说：
sudo easy_install pip
所以算了，还是先去解决：
【未解决】Mac中Python2的easy_install的问题：ImportError cannot import name ContextualZipFile
pip – Python 包和依赖关系管理 – Python开发 – 评论 | CTOLib码库
试试：
<code>pythonget-pip.py --user </code>
是可以的：
<code>➜ robotDemo python get-pip.py --user Collecting pip Using cached https://files.pythonhosted.org/packages/0f/74/ecd13431bcc456ed390b44c8a6e917c1820365cbebcb6a8974d1cd045ab4/pip-10.0.1-py2.py3-none-any.whl Collecting wheel Using cached https://files.pythonhosted.org/packages/1b/d2/22cde5ea9af055f81814f9f2545f5ed8a053eb749c08d186b369959189a8/wheel-0.31.0-py2.py3-none-any.whl pipenv 11.10.0 requires certifi, which is not installed. pipenv 11.10.0 requires requests[security], which is not installed. pipenv 11.10.0 requires virtualenv, which is not installed. matplotlib 1.3.1 requires nose, which is not installed. matplotlib 1.3.1 requires tornado, which is not installed. Installing collected packages: pip, wheel The script wheel is installed in '/Users/crifan/Library/Python/2.7/bin' which is not on PATH. Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location. Successfully installed pip-10.0.1 wheel-0.31.0 </code>
但是明显提示了：
/Users/crifan/Library/Python/2.7/bin
没有在PATH中
但是又不能直接放到PATH中，否则就和之前安装的python3的pipenv冲突了：
<code>➜ robotDemo ll /Users/crifan/Library/Python/3.6/bin total 40 -rwxr-xr-x 1 crifan staff 242B 4 17 14:35 pewtwo -rwxr-xr-x 1 crifan staff 226B 4 17 14:35 pipenv -rwxr-xr-x 1 crifan staff 237B 4 17 14:35 pipenv-resolver -rwxr-xr-x 1 crifan staff 232B 4 17 11:06 virtualenv -rwxr-xr-x 1 crifan staff 237B 4 17 11:06 virtualenv-clone </code>
然后看看此处的：
<code>➜ robotDemo pip --version pip 10.0.1 from /usr/local/lib/python3.6/site-packages/pip (python 3.6) ➜ robotDemo which pip pip: aliased to noglob pip ➜ robotDemo ls -hl /Users/crifan/Library/Python/2.7/bin total 80 -rwxr-xr-x 1 crifan staff 253B 4 17 10:19 easy_install -rwxr-xr-x 1 crifan staff 253B 4 17 10:19 easy_install-2.7 -rwxr-xr-x 1 crifan staff 242B 4 17 10:19 pewtwo -rwxr-xr-x 1 crifan staff 215B 4 20 15:26 pip -rwxr-xr-x 1 crifan staff 215B 4 20 15:26 pip2 -rwxr-xr-x 1 crifan staff 215B 4 20 15:26 pip2.7 -rwxr-xr-x 1 crifan staff 226B 4 17 10:19 pipenv -rwxr-xr-x 1 crifan staff 237B 4 17 10:19 pipenv-resolver -rwxr-xr-x 1 crifan staff 237B 4 17 10:19 virtualenv-clone -rwxr-xr-x 1 crifan staff 212B 4 20 15:26 wheel ➜ robotDemo /Users/crifan/Library/Python/2.7/bin/pip --version pip 10.0.1 from /Users/crifan/Library/Python/2.7/lib/python/site-packages/pip (python 2.7) ➜ robotDemo /Users/crifan/Library/Python/2.7/bin/pipenv --version zsh: /Users/crifan/Library/Python/2.7/bin/pipenv: bad interpreter: /usr/local/opt/python/bin/python2.7: no such file or directory ➜ robotDemo /Users/crifan/Library/Python/2.7/bin/easy_install --version zsh: /Users/crifan/Library/Python/2.7/bin/easy_install: bad interpreter: /usr/local/opt/python/bin/python2.7: no such file or directory ➜ robotDemo /Users/crifan/Library/Python/2.7/bin/pewtwo --version zsh: /Users/crifan/Library/Python/2.7/bin/pewtwo: bad interpreter: /usr/local/opt/python/bin/python2.7: no such file or directory ➜ robotDemo /Users/crifan/Library/Python/2.7/bin/pip2.7 --version pip 10.0.1 from /Users/crifan/Library/Python/2.7/lib/python/site-packages/pip (python 2.7) ➜ robotDemo /Users/crifan/Library/Python/2.7/bin/pipenv-resolver --version zsh: /Users/crifan/Library/Python/2.7/bin/pipenv-resolver: bad interpreter: /usr/local/opt/python/bin/python2.7: no such file or directory ➜ robotDemo cat /Users/crifan/Library/Python/2.7/bin/pipenv #!/usr/local/opt/python/bin/python2.7 # -*- coding: utf-8 -*- import re import sys from pipenv import cli if __name__ == '__main__': sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0]) sys.exit(cli()) ➜ robotDemo ll /usr/local/opt/python/bin/py pydoc3@ python3@ python3.6@ python3.6m@ pyvenv@ pydoc3.6@ python3-config@ python3.6-config@ python3.6m-config@ pyvenv-3.6@ </code>
很明显，此处之前安装了python2的pipenv，使得：
/Users/crifan/Library/Python/2.7/bin
中有了：
pewtwo
pipenv
pipenv-resolver
virtualenv-clone
但是之前去删除掉python2的pipenv后，是把pipenv从：
/usr/local/opt/python/bin/
去掉了，但是却没有去掉：
/Users/crifan/Library/Python/2.7/bin
残留的那些文件
-》
所以感觉，可以放心的删除掉：
/Users/crifan/Library/Python/2.7/bin
之前残留的和pipenv相关的几个文件了。
但是删除之前，去看看此处的：
/Users/crifan/Library/Python/3.6/bin
中有哪些pipenv相关的文件
<code>➜ robotDemo ls -hl /Users/crifan/Library/Python/3.6/bin total 40 -rwxr-xr-x 1 crifan staff 242B 4 17 14:35 pewtwo -rwxr-xr-x 1 crifan staff 226B 4 17 14:35 pipenv -rwxr-xr-x 1 crifan staff 237B 4 17 14:35 pipenv-resolver -rwxr-xr-x 1 crifan staff 232B 4 17 11:06 virtualenv -rwxr-xr-x 1 crifan staff 237B 4 17 11:06 virtualenv-clone ➜ robotDemo ls -hl /Users/crifan/Library/Python/2.7/bin total 80 -rwxr-xr-x 1 crifan staff 253B 4 17 10:19 easy_install -rwxr-xr-x 1 crifan staff 253B 4 17 10:19 easy_install-2.7 -rwxr-xr-x 1 crifan staff 242B 4 17 10:19 pewtwo -rwxr-xr-x 1 crifan staff 215B 4 20 15:26 pip -rwxr-xr-x 1 crifan staff 215B 4 20 15:26 pip2 -rwxr-xr-x 1 crifan staff 215B 4 20 15:26 pip2.7 -rwxr-xr-x 1 crifan staff 226B 4 17 10:19 pipenv -rwxr-xr-x 1 crifan staff 237B 4 17 10:19 pipenv-resolver -rwxr-xr-x 1 crifan staff 237B 4 17 10:19 virtualenv-clone -rwxr-xr-x 1 crifan staff 212B 4 20 15:26 wheel </code>
另外，再去看看之前的PATH的路径：
<code>/Users/crifan/Library/Python/3.6/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin </code>
中不同路径下面，和python相关的：
<code>➜ robotDemo ll /usr/local/bin/py* lrwxr-xr-x 1 crifan admin 35B 4 17 10:52 /usr/local/bin/pydoc3 -> ../Cellar/python/3.6.4_4/bin/pydoc3 lrwxr-xr-x 1 crifan admin 37B 4 17 10:52 /usr/local/bin/pydoc3.6 -> ../Cellar/python/3.6.4_4/bin/pydoc3.6 -rwxr-xr-x 1 crifan admin 244B 12 26 20:49 /usr/local/bin/pyhtmlizer -rwxr-xr-x 1 crifan admin 240B 9 13 2017 /usr/local/bin/pylint -rwxr-xr-x 1 crifan admin 246B 9 13 2017 /usr/local/bin/pyreverse lrwxr-xr-x 1 crifan admin 36B 4 17 10:52 /usr/local/bin/python3 -> ../Cellar/python/3.6.4_4/bin/python3 lrwxr-xr-x 1 crifan admin 43B 4 17 10:52 /usr/local/bin/python3-config -> ../Cellar/python/3.6.4_4/bin/python3-config lrwxr-xr-x 1 crifan admin 38B 4 17 10:52 /usr/local/bin/python3.6 -> ../Cellar/python/3.6.4_4/bin/python3.6 lrwxr-xr-x 1 crifan admin 45B 4 17 10:52 /usr/local/bin/python3.6-config -> ../Cellar/python/3.6.4_4/bin/python3.6-config lrwxr-xr-x 1 crifan admin 39B 4 17 10:52 /usr/local/bin/python3.6m -> ../Cellar/python/3.6.4_4/bin/python3.6m lrwxr-xr-x 1 crifan admin 46B 4 17 10:52 /usr/local/bin/python3.6m-config -> ../Cellar/python/3.6.4_4/bin/python3.6m-config lrwxr-xr-x 1 crifan admin 35B 4 17 10:52 /usr/local/bin/pyvenv -> ../Cellar/python/3.6.4_4/bin/pyvenv lrwxr-xr-x 1 crifan admin 39B 4 17 10:52 /usr/local/bin/pyvenv-3.6 -> ../Cellar/python/3.6.4_4/bin/pyvenv-3.6 ➜ robotDemo ll /usr/local/bin/pip* -rwxr-xr-x 1 crifan admin 235B 4 20 15:21 /usr/local/bin/pip -rwxr-xr-x 1 crifan admin 235B 4 17 10:18 /usr/local/bin/pip2 -rwxr-xr-x 1 crifan admin 235B 4 17 10:18 /usr/local/bin/pip2.7 -rwxr-xr-x 1 crifan admin 235B 4 20 15:21 /usr/local/bin/pip3 -rwxr-xr-x 1 crifan admin 235B 4 20 15:21 /usr/local/bin/pip3.6 </code>
然后去看看：
/usr/local/bin
下面的pip和python：
<code>➜ robotDemo /usr/local/bin/pip --version pip 10.0.1 from /usr/local/lib/python3.6/site-packages/pip (python 3.6) ➜ robotDemo /usr/local/bin/pip2 --version zsh: /usr/local/bin/pip2: bad interpreter: /usr/local/opt/python/bin/python2.7: no such file or directory ➜ robotDemo /usr/local/bin/pip2.7 --version zsh: /usr/local/bin/pip2.7: bad interpreter: /usr/local/opt/python/bin/python2.7: no such file or directory ➜ robotDemo /usr/local/bin/pip3 --version pip 10.0.1 from /usr/local/lib/python3.6/site-packages/pip (python 3.6) ➜ robotDemo /usr/local/bin/pip3.6 --version pip 10.0.1 from /usr/local/lib/python3.6/site-packages/pip (python 3.6) </code>
再去看看：
/usr/bin/
下面的pip和python：
<code>➜ robotDemo ll /usr/bin/pip* ls: /usr/bin/pip*: No such file or directory ➜ robotDemo ll /usr/bin/py* -rwxr-xr-x 4 root wheel 925B 7 16 2017 /usr/bin/pydoc lrwxr-xr-x 1 root wheel 74B 11 15 12:14 /usr/bin/pydoc2.7 -> ../../System/Library/Frameworks/Python.framework/Versions/2.7/bin/pydoc2.7 -rwxr-xr-x 1 root wheel 65K 3 28 12:02 /usr/bin/python -rwxr-xr-x 4 root wheel 925B 7 16 2017 /usr/bin/python-config lrwxr-xr-x 1 root wheel 75B 11 15 12:14 /usr/bin/python2.7 -> ../../System/Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7 lrwxr-xr-x 1 root wheel 82B 11 15 12:14 /usr/bin/python2.7-config -> ../../System/Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7-config -rwxr-xr-x 1 root wheel 65K 3 28 12:02 /usr/bin/pythonw lrwxr-xr-x 1 root wheel 76B 11 15 12:14 /usr/bin/pythonw2.7 -> ../../System/Library/Frameworks/Python.framework/Versions/2.7/bin/pythonw2.7 ➜ robotDemo /usr/bin/python --version Python 2.7.10 </code>
以及：
<code>➜ robotDemo ll /bin/pip* ls: /bin/pip*: No such file or directory ➜ robotDemo ll /bin/py* ls: /bin/py*: No such file or directory ➜ robotDemo ll /usr/sbin/pip* ls: /usr/sbin/pip*: No such file or directory ➜ robotDemo ll /usr/sbin/py* ls: /usr/sbin/py*: No such file or directory ➜ robotDemo ll /sbin/pip* ls: /sbin/pip*: No such file or directory ➜ robotDemo ll /sbin/py* ls: /sbin/py*: No such file or directory </code>
还是不行，所以去手动把所用的python解析器改为python2的：
<code>➜ bin /usr/local/bin/pip --version pip 10.0.1 from /usr/local/lib/python3.6/site-packages/pip (python 3.6) ➜ bin ll /usr/local/bin/pip -rwxr-xr-x 1 crifan admin 235B 4 20 15:21 /usr/local/bin/pip ➜ bin cat /usr/local/bin/pip #!/usr/local/opt/python/bin/python3.6 # -*- coding: utf-8 -*- import re import sys from pip._internal import main if __name__ == '__main__': sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0]) sys.exit(main()) ➜ bin vi /usr/local/bin/pip ➜ bin cat /usr/local/bin/pip #!/usr/bin/python # -*- coding: utf-8 -*- import re import sys from pip._internal import main if __name__ == '__main__': sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0]) sys.exit(main()) </code>
然后再去看看结果pip是否从3变成2的
终于变过来了：
<code>➜ bin /usr/local/bin/pip --version pip 10.0.1 from /Users/crifan/Library/Python/2.7/lib/python/site-packages/pip (python 2.7) </code>
然后再去继续重新安装：
<code>➜ bin python -m pip install -U --force-reinstall pip Collecting pip Using cached https://files.pythonhosted.org/packages/0f/74/ecd13431bcc456ed390b44c8a6e917c1820365cbebcb6a8974d1cd045ab4/pip-10.0.1-py2.py3-none-any.whl pipenv 11.10.0 requires certifi, which is not installed. pipenv 11.10.0 requires requests[security], which is not installed. pipenv 11.10.0 requires virtualenv, which is not installed. matplotlib 1.3.1 requires nose, which is not installed. matplotlib 1.3.1 requires tornado, which is not installed. Installing collected packages: pip Found existing installation: pip 10.0.1 Uninstalling pip-10.0.1: Successfully uninstalled pip-10.0.1 Rolling back uninstall of pip Could not install packages due to an EnvironmentError: [Errno 13] Permission denied: '/Library/Python/2.7/site-packages/pip-10.0.1.dist-info' Consider using the `--user` option or check the permissions. ➜ bin python -m pip install -U --force-reinstall pip --user Collecting pip Using cached https://files.pythonhosted.org/packages/0f/74/ecd13431bcc456ed390b44c8a6e917c1820365cbebcb6a8974d1cd045ab4/pip-10.0.1-py2.py3-none-any.whl pipenv 11.10.0 requires certifi, which is not installed. pipenv 11.10.0 requires requests[security], which is not installed. pipenv 11.10.0 requires virtualenv, which is not installed. matplotlib 1.3.1 requires nose, which is not installed. matplotlib 1.3.1 requires tornado, which is not installed. Installing collected packages: pip Found existing installation: pip 10.0.1 Uninstalling pip-10.0.1: Successfully uninstalled pip-10.0.1 Successfully installed pip-10.0.1 ➜ bin which pip pip: aliased to noglob pip ➜ bin where pip pip: aliased to noglob pip /usr/local/bin/pip ➜ bin /usr/local/bin/pip --version pip 10.0.1 from /Users/crifan/Library/Python/2.7/lib/python/site-packages/pip (python 2.7) ➜ bin ll /usr/local/bin/pip -rwxr-xr-x 1 crifan admin 215B 4 20 15:47 /usr/local/bin/pip </code>
好像是没什么效果的。
不过不论如何，此处新开终端，至少是可以找到python2的pip了：
<code>Last login: Fri Apr 20 14:34:13 on ttys007 ➜ ~ which pip pip: aliased to noglob pip ➜ ~ where pip pip: aliased to noglob pip /usr/local/bin/pip ➜ ~ pip --version pip 10.0.1 from /Users/crifan/Library/Python/2.7/lib/python/site-packages/pip (python 2.7) ➜ ~ </code>
所以，此处，把pip从python3换成python2的任务，算是完成了。
【总结】
此处，之前的pip，是：
<code>➜ bin /usr/local/bin/pip --version pip 10.0.1 from /usr/local/lib/python3.6/site-packages/pip (python 3.6) ➜ bin ll /usr/local/bin/pip -rwxr-xr-x 1 crifan admin 235B 4 20 15:21 /usr/local/bin/pip ➜ bin cat /usr/local/bin/pip #!/usr/local/opt/python/bin/python3.6 # -*- coding: utf-8 -*- import re import sys from pip._internal import main if __name__ == '__main__': sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0]) sys.exit(main()) </code>
即：
从pip是：/usr/local/bin/pip
然后内部是用python解析器：/usr/local/opt/python/bin/python3.6
所以出来的pip –version
是3.6的
最后把：
<code>#!/usr/local/opt/python/bin/python3.6 </code>
改为：
<code>#!/usr/bin/python </code>
然后再去看看pip就是python2的了：
<code>➜ bin /usr/local/bin/pip --version pip 10.0.1 from /Users/crifan/Library/Python/2.7/lib/python/site-packages/pip (python 2.7) </code>
暂时就不深究了。