I'm getting the following error: 'Collecting pydicom Retrying (Retry(total=4, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError(': Failed to establish a new connection: [Errno -2] Name or service not known',)': /simple/pydicom/' Can someone help ? Thanks!

Created by Nuno Marques nunoskew
Thanks Bruce, I have able to install the docker container successfully. As you mentioned the problem was on the installation of the docker and configuration of the dns.
Dear Bruce, I have the same problem "Failed to establish a new connection: [Errno -2]" while building the container. As you have suggested, the problem is with the pip install command for connecting to the Internet. I checked the Internet connection with the following command: ``` Server:~$ docker run -it --rm python /bin/sh # curl https://www.google.com curl: (6) Could not resolve host: www.google.com ``` Instead used the following command. It connects to the Internet. ``` Server:~$ docker run -it --rm --net=host python /bin/sh # curl https://www.google.com 302 Moved

302 Moved

The document has moved here. # exit ``` I am not sure how to pass this argument to the docker pip to install using Internet connection? If I bypass the pip install command. I am able to successfully build, login, and push. One of the main issue is configuration of dns server on the local machine. I will also have attempted to solve this using the examples from docker website "Configure a DNS server for use by Docker", link:https://docs.docker.com/engine/installation/linux/ubuntulinux/ to solve this issue. I have no result. Kindly clarify on this issue.
Hey Bruce, it didn't work. I'll look into https://github.com/docker/docker/issues/13381 more thoroughly and if i fix it, i'll post the solution to my problem. Thanks a lot for your help!
Nuno, the error seems to indicate a problem with pip reaching out to the internet. Pip is running inside a Docker container so I wonder if there is a problem with your Docker installation. You could try various things, like reaching out to the internet from an interactive container session, e.g. ``` # start up an interactive container session using the base 'python' image docker run -it --rm python /bin/sh # now, from inside the container curl https://www.google.com exit ``` Does the curl command return a bunch of HTML (Google's landing page)? If it doesn't work you could try using a different computer, or reinstalling Docker on your current machine.
also didn't work on https://github.com/brucehoff/dm-python-example. Same error!
This happened when you ran 'docker build'? Can you clone and run 'docker build' on the simple example: https://github.com/brucehoff/dm-python-example ? (This example also used pydicom.) Or do you encounter the same error?

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