Voici ce que j’ai fait pour faire l’installation de pip sur Mac OS :

$ curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 1662k  100 1662k    0     0   560k      0  0:00:02  0:00:02 --:--:--  560k

$ python3 get-pip.py
Collecting pip
  Downloading https://files.pythonhosted.org/packages/d7/41/34dd96bd33958e52cb4da2f1bf0818e396514fd4f4725a79199564cd0c20/pip-19.0.2-py2.py3-none-any.whl (1.4MB)
    100% |████████████████████████████████| 1.4MB 154kB/s 
Installing collected packages: pip
  Found existing installation: pip 18.1
    Uninstalling pip-18.1:
      Successfully uninstalled pip-18.1
Successfully installed pip-19.0.2

$ pip install feedparser
Collecting feedparser
  Downloading https://files.pythonhosted.org/packages/91/d8/7d37fec71ff7c9dbcdd80d2b48bcdd86d6af502156fc93846fb0102cb2c4/feedparser-5.2.1.tar.bz2 (192kB)
    100% |████████████████████████████████| 194kB 500kB/s 
Building wheels for collected packages: feedparser
  Building wheel for feedparser (setup.py) ... done
  Stored in directory: ....
Successfully built feedparser
Installing collected packages: feedparser
Successfully installed feedparser-5.2.1