alpine package py-pip missing

Question

Im trying to install python pip in my alpine using Docker compose file but get the following error.

ERROR: unsatisfiable constraints:
  py-pip (missing):
    required by: world[py-pip]
ERROR: Service 'web' failed to build: The command '/bin/sh -c apk add py-pip' returned a non-zero code: 1

Answer 1

Do update first:

apk add --update py-pip

Or:

apk update
apk add py-pip

Answer 2

For python3 on alpine edge:

apk add py3-setuptools

Answer 3

You have to use appropriate pip version depending on Alpine branch:

• Alpine v3.12 or newer, use apk add --update py3-pip
• Alpine v3.5 - v3.11, use apk add --update py2-pip
• Alpine v3.3 - v3.4, use apk add --update py-pip

Answer 4

For me --no-cache option worked.

apk add --no-cache py-pip

Answer 5

I've found the following:

$ apk add --update py3-pip

Answer 6

The command '/bin/sh -c pip install django-mass-edit && pip install django-admin-list-filter-dropdown && pip install SQLAlchemy && pip

Answer 7

AlpineWSL 3.14.0 | Last commands is a solution, info from ircs://irc.oftc.net/alpine-linux

apk update
apk upgrade
apk add python2
python -m ensurepip --upgrade

Example

pip install -r requirements.txt
DEPRECATION: Python 2.7 will reach the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 won't be maintained after that date. A future version of pip will drop support for Python 2.7. More details about Python 2 support in pip, can be found at https://pip.pypa.io/en/latest/development/release-process/#python-2-support
...
Successfully installed certifi-2021.10.8 chardet-4.0.0 idna-2.10 requests-2.26.0 urllib3-1.26.7
WARNING: You are using pip version 19.2.3, however version 20.3.4 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.