Unable to install python3-pip on Debian 8

Question

I want to install python3-pip but I always get errors:

sudo apt-get install python3-pip

The following packages have unmet dependencies:
 python3-pip : Depends: python3-setuptools but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

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sudo apt-get install python-setuptools


The following packages have unmet dependencies:
 python3-setuptools : Depends: python3-pkg-resources (= 5.5.1-1) but 33.1.1-1~bpo8+1 is to be installed
E: Unable to correct problems, you have held broken packages.

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sudo apt-get install python3-pkg-resources


Reading package lists... Done
Building dependency tree
Reading state information... Done
python3-pkg-resources is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 2 not upgraded.

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I already did update/upgrade but it still does not work

Answer 1

The python3-pkg-resources is removed from jessie-backports.

sudo apt purge python3-pkg-resources

It will be installed from the main repository as dependencies.

sudo apt install python3-pip

Answer 2

You could try

• sudo apt-get install python3-pkg-resources
• sudo apt-get install -f python3-pip

Maybe this is the solution, but I'm really not sure.

Answer 3

For those who are still stuck on reinstalling Python3 after doing some unholy (to Debian) removal of Python3 (and not using the apt-get remove python3 correctly, I offer this 100% recovery step.

https://stackoverflow.com/a/58980420/4379130