How to install pip3 on my Mac?

问题:

I'm trying to install pip3, but I'm not having any luck. Also, I tried sudo install and it did not work. How could I install pip3 on my Mac?

sudo easy_install pip3
Password:
Searching for pip3
Reading https://pypi.python.org/simple/pip3/
Couldn't find index page for 'pip3' (maybe misspelled?)
Scanning index of all packages (this may take a while)
Reading https://pypi.python.org/simple/

No local packages or download links found for pip3
error: Could not find suitable distribution for Requirement.parse('pip3')

回答1:

UPDATED - Homebrew version after 1.5

According to the official Homebrew page:

On 1st March 2018 the python formula will be upgraded to Python 3.x and a python@2 formula will be added for installing Python 2.7 (although this will be keg-only so neither python nor python2 will be added to the PATH by default without a manual brew link --force). We will maintain python2, python3 and python@3 aliases.

So to install Python 3, run the following command:

brew install python3

Then, the pip or pip3 is installed automatically, and you can install any package by pip install <package>.

---

The older version of Homebrew

Not only brew install python3 but also brew postinstall python3

So you must run:

brew install python3
brew postinstall python3

Note that you should check the console, as it might get you errors and in that case, the pip3 is NOT installed.

回答2:

You could use home-brew

Then just run:

brew install python3

回答3:

I solved the same problem with these commands:

curl -O https://bootstrap.pypa.io/get-pip.py
sudo python3 get-pip.py

回答4:

Python3 was working successfully but without pip3. Tried many advises from stackoverflow, quora and others. (numerous installs and uninstalls)

Python3 was always fine but without pip3. Finally I downloaded Python3 from: https://www.python.org/downloads/

By simple mouse clicks and everything (Python3 + pip3) is working fine now.

回答5:

For me brew postinstall python3 didn't work. Found this solution on GitHub homebrew issues page:

$ brew rm python 
$ rm -rf /usr/local/opt/python
$ brew prune 
$ brew install python3

回答6:

To install or upgrade pip, download get-pip.py from the official site. Then run the following command:

sudo python get-pip.py 

and it will install pip for your python version which runs the script.

回答7:

Similar to Oksana but add python3

$ brew rm python 
$ brew rm python3 
$ rm -rf /usr/local/opt/python
$ rm -rf /usr/local/opt/python3
$ brew prune 
$ brew install python3
$ brew postinstall python3

Seem now work for pip3 under mac os x 10.13.3 Xcode 9.2

回答8:

I ran the below where <user>:<group> matched the other <user>:<group> for other files in the /usr/local/lib/python3.7/site-packages/ directory:

sudo chown -R <user>:<group> /usr/local/lib/python3.7/site-packages/pip*
brew postinstall python3