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name Punditsdkoslkdosdkoskdo

How to install pip for Python 3 on Mac OS X?

OS X (Mavericks) has Python 2.7 stock installed. But I do all my own personal Python stuff with 3.3. I just flushed my 3.3.2 install and installed the new 3.3.3. So I need to install pyserial again. I can do it the way I've done it before, which is:

  1. Download pyserial from pypi
  2. untar pyserial.tgz
  3. cd pyserial
  4. python3 setup.py install

But I'd like to do like the cool kids do, and just do something like pip3 install pyserial. But it's not clear how I get to that point. And just that point. Not interested (unless I have to be) in virtualenv yet.

UPDATE: This is no longer necessary with Python3.4. It installs pip3 as part of the stock install.

I ended up posting this same question on the python mailing list, and got the following answer:

# download and install setuptools
curl -O https://bootstrap.pypa.io/ez_setup.py
python3 ez_setup.py
# download and install pip
curl -O https://bootstrap.pypa.io/get-pip.py
python3 get-pip.py

Which solved my question perfectly. After adding the following for my own:

cd /usr/local/bin
ln -s ../../../Library/Frameworks/Python.framework/Versions/3.3/bin/pip pip

So that I could run pip directly, I was able to:

# use pip to install
pip install pyserial

or:

# Don't want it?
pip uninstall pyserial
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I had to go through this process myself and chose a different way that I think is better in the long run.

I installed homebrew

ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

then:

brew doctor

The last step gives you some warnings and errors that you have to resolve. One of those will be to download and install the Mac OS X command-line tools.

then:

brew install python3

This gave me python3 and pip3 in my path.

pieter$ which pip3 python3
/usr/local/bin/pip3
/usr/local/bin/python3
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    • Thanks for this, was looking for a good solution. For people seeing this in the future (who will get the same message I got from ruby), the Homebrew installer has moved and the new command is: ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

Install Python3 on mac

1. brew install python3
2. curl https://bootstrap.pypa.io/get-pip.py | python3
3. python3

Use pip3 to install modules

1. pip3 install ipython
2. python3 -m IPython

:)

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  1. brew install python3
  2. create alias in your shell profile

    • eg. alias pip3="python3 -m pip" in my .zshrc

? ~ pip3 --version

pip 9.0.1 from /usr/local/lib/python3.6/site-packages (python 3.6)

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Here is my simple solution:

If you have python2 and python3 both installed in your system, the pip upgrade will point to python2 by default. Hence, we must specify the version of python(python3) and use the below command:

python3 -m pip install --upgrade pip

This command will uninstall the previously installed pip and install the new version- upgrading your pip.

This will save memory and declutter your system.

Image - How the upgrading of pip in Python3 works on MacOS

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To use Python EasyInstall (which is what I think you're wanting to use), is super easy!

sudo easy_install pip

so then with pip to install Pyserial you would do:

pip install pyserial
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      • 2
    • How does easy_install determine that it's for python3? I have a usrlocalineasy_install dated Sep 13 2012. I'm suspicious that is from/for the stock 2.7. Sadly, easy_install --version isn't helpful. --help doesn't even give any useful hints.
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    • @TravisGriggs, well uninstalling 2.7 can be a bad idea if not done correctly. try typing which easy_install in terminal following by less easy_install. It should give me more information on the version you're using.
    • Yeah, I had checked that. It's a binary, not a symlink. Since python3 mostly installs in /Library/Frameworks/Python/..., that makes me strongly suspicious that it is for 2.7.

On Mac OS X Mojave python stands for python of version 2.7 and python3 for python of version 3. The same is pip and pip3. So, to upgrade pip for python 3 do this:

~$ sudo pip3 install --upgrade pip
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simply run following on terminal if you don't have pip installed on your mac.

sudo easy_install pip

download python 3 here: python3

once you're done with these 2 steps, make sure to run the following to verify whether you've installed them successfully.

python3 --version
pip3 --version
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For a fresh new Mac, you need to follow below steps:-

  1. Make sure you have installed Xcode
  2. sudo easy_install pip
  3. /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
  4. brew doctor
  5. brew doctor
  6. brew install python3

And you are done, just type python3 on terminal and you will see python 3 installed.

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I had the same problem with python3 and pip3. Decision: solving all conflicts with links and other stuff when do

brew doctor

After that

brew reinstall python3
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