Estoy tratando de eliminar Python 2.7 y reemplazarlo con Python 3.6. Lo principal que quiero hacer es escribir "python" y mi terminal usa python 3.6, pero por alguna razón tengo restricciones para actualizar python.
Instalé python 3 con:
brew install python3
A continuación se muestran los comandos que estoy ejecutando. ¿Podría alguien por favor ayudarme?
Guys-MacBook-Pro:bin guy$ python --version
Python 2.7.10
Guys-MacBook-Pro:bin guy$ python3 --version
Python 3.6.5
Guys-MacBook-Pro:bin guy$ whereis python
/usr/bin/python
Guys-MacBook-Pro:bin guy$ whereis python3
Guys-MacBook-Pro:bin guy$ pwd
/usr/bin
Guys-MacBook-Pro:bin guy$ ls -l | grep python
-rwxr-xr-x 1 root wheel 66880 Mar 27 23:03 python
-rwxr-xr-x 4 root wheel 925 Oct 7 2017 python-config
lrwxr-xr-x 1 root wheel 75 Apr 2 15:56 python2.7 -> ../../System/Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7
lrwxr-xr-x 1 root wheel 82 Apr 2 15:56 python2.7-config -> ../../System/Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7-config
-rwxr-xr-x 1 root wheel 66880 Mar 27 23:03 pythonw
lrwxr-xr-x 1 root wheel 76 Apr 2 15:56 pythonw2.7 -> ../../System/Library/Frameworks/Python.framework/Versions/2.7/bin/pythonw2.7
Guys-MacBook-Pro:bin guy$ ls -l /usr/local/bin|grep python
lrwxr-xr-x 1 guy admin 43 Apr 16 15:25 easy_install-3.6 -> ../Cellar/python/3.6.5/bin/easy_install-3.6
lrwxr-xr-x 1 guy admin 31 Apr 16 15:25 pip3 -> ../Cellar/python/3.6.5/bin/pip3
lrwxr-xr-x 1 guy admin 33 Apr 16 15:25 pip3.6 -> ../Cellar/python/3.6.5/bin/pip3.6
lrwxr-xr-x 1 root wheel 69 Apr 16 12:42 python3 -> ../../../Library/Frameworks/Python.framework/Versions/3.6/bin/python3
lrwxr-xr-x 1 root wheel 76 Apr 16 12:42 python3-config -> ../../../Library/Frameworks/Python.framework/Versions/3.6/bin/python3-config
lrwxr-xr-x 1 root wheel 71 Apr 16 12:42 python3.6 -> ../../../Library/Frameworks/Python.framework/Versions/3.6/bin/python3.6
lrwxr-xr-x 1 root wheel 78 Apr 16 12:42 python3.6-config -> ../../../Library/Frameworks/Python.framework/Versions/3.6/bin/python3.6-config
lrwxr-xr-x 1 root wheel 72 Apr 16 12:42 python3.6m -> ../../../Library/Frameworks/Python.framework/Versions/3.6/bin/python3.6m
lrwxr-xr-x 1 root wheel 79 Apr 16 12:42 python3.6m-config -> ../../../Library/Frameworks/Python.framework/Versions/3.6/bin/python3.6m-config
lrwxr-xr-x 1 guy admin 33 Apr 16 15:25 wheel3 -> ../Cellar/python/3.6.5/bin/wheel3
Guys-MacBook-Pro:bin guy$ sudo ln -s /Library/Frameworks/Python.framework/Versions/3.6/bin/python3 python
ln: python: Operation not permitted
Guys-MacBook-Pro:bin guy$ sudo su
sh-3.2# pwd
/usr/bin
sh-3.2# ln -s /Library/Frameworks/Python.framework/Versions/3.6/bin/python3 python
ln: python: Operation not permitted
sh-3.2# exit
exit
Guys-MacBook-Pro:bin guy$ sudo su -
Guys-MacBook-Pro:~ root# cd /usr/bin
Guys-MacBook-Pro:bin root# ln -s /Library/Frameworks/Python.framework/Versions/3.6/bin/python3 python
ln: python: Operation not permitted
Guys-MacBook-Pro:bin root#
Ya no necesita ejecutar brew install python3para instalar Python 3.x, ya que la fórmula pythonahora tiene como valor predeterminado Python 3.x. Simplemente ejecuta:
brew install python
para instalar Python 3.x.
El binario de Python instalado en Homebrew todavía se nombra python3, por lo que la ejecución pythonse realizará de forma predeterminada en Apple Python, que sigue siendo Python 2.x. Para evitarlo, alias pythonpara python3ejecutar:
alias python="python3"
y debería hacer el truco. Es posible que desee eliminar python3la fórmula instalada de Homebrew ejecutando:
brew uninstall python3
Millivías
Nimesh Neema