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I want to install ns3.33 simulator on my ubuntu 20.04.2LTS and when I run the command:

apt-get install python-pygraphviz python-kiwi python-pygoocanvas libgoocanvas-dev ipython

I have these errors:

Package ipython is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source

E: Unable to locate package python-pygraphviz E: Unable to locate package python-kiwi E: Unable to locate package python-pygoocanvas E: Unable to locate package libgoocanvas-dev E: Package 'ipython' has no installation candidate

I have tried these commands, but the same problem:

sudo apt update sudo apt install python-pip python3-pip

sudo -H pip install ipython sudo -H pip3 install ipython

How to solve this ?

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  • 1
    ipython binary packages are available in Ubuntu 16.04 and 18.04. They were dropped before 20.04 and are no longer available for newer releases.
    – user535733
    Feb 14, 2021 at 21:01
  • So, what should I do ?
    – Sara
    Feb 14, 2021 at 21:17
  • Install 18.04 since it is a LTS supported version and have at it for the next just over two years. Or find a version that works with modern software.
    – user1179897
    Feb 14, 2021 at 22:22
  • ipython is no longer available in the repository. Instead, ipython3 should be installed.
    – lightsaber
    Jan 22, 2023 at 12:04

1 Answer 1

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If you install it from the GitHub it should work with 20.04.

Go to https://github.com/ipython/ipython/releases and download the Source Code (tar.gz) file.

Extract the contents:

tar zxvf ipython-7.18.1.tar.gz

Enter the newly created directory:

cd ipython-7.18.1/

Then use pip3 to install it:

pip3 install .

Don't forget to add the . at the end of the command meaning to install from here.

Hope this helps!

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