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

Question

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.

Answer 1

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

Answer 2

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

Answer 3

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

Answer 4

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)

Answer 5

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

Answer 6

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