How to install python3 pip / pip3 in Alpine Linux

Problem:

You want to install pip3 (also called python3-pip) in Alpine linux, but running apk install python3-pip shows you that the package doesn’t exist

/ # apk add python3-pip
ERROR: unable to select packages:
  python3-pip (no such package):
    required by: world[python3-pip]

Solution:

You need to install py3-pip instead using

apk add py3-pip

Example output:

/ # apk add py3-pip
(1/35) Installing libbz2 (1.0.8-r1)
(2/35) Installing expat (2.2.10-r1)
(3/35) Installing libffi (3.3-r2)
[...]