terminal runs python 2.7 when I have python 3.5 installed on mac.

Question

I was installing, uninstalling and reinstalling pythons on my mac, and I think things are screwed up a little.

At first by default, terminal ran Python 3.5 when I typed

$python

, but after doing some things, it installed 2.7 and now the terminal runs python 2.7 instead of 3.5

I installed python 3.5 form http://python.org/.

When I open up bash_profile

$vim ~/.bash_profile

This is what shows up

# virtualenv
export WORKON_HOME=~/.virtualenvs
source /usr/local/bin/virtualenvwrapper.sh


# Setting PATH for Python 3.5
# The orginal version is saved in .bash_profile.pysave
PATH="/Library/Frameworks/Python.framework/Versions/3.5/bin:${PATH}"
export PATH

Now when I type:

$ python

This shows up:

Python 2.7.11 (default, Jun 23 2016, 17:25:20) 
[GCC 4.2.1 Compatible Apple LLVM 7.3.0 (clang-703.0.31)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> 

How can I reset all the python stuff(remove older versions, etc) to the factory version that i had when I first bought Mac(python3.5)?

Answer 1

This worked for me:

Python 3.x

python3

Python 2.x

python

in terminal

Answer 2

To see what command is actually going to run when you type python at the prompt, check the top result of:

type -a python

This will list any aliases as well as taking into account the full PATH definition. To figure out why python 2 is getting precedence over python 3, be sure to check your ~/.bashrc file if it exists as well as your ~/.bash_profile.

Answer 3

To check your Python binaries, run:

$ which -a python python2 python3

Then check which python path comes first.

Then either set your $PATH or $PYTHONPATH (then reload your shell), or use python2 or python3 command instead.

You can also use following workaround:

PATH="/usr/bin:$PATH" ./python_script.py

where /usr/bin is pointing to the right Python binary.