error: cannot uninstall 'simplejson', not able to install on Ubuntu 18.04,

+1 vote

Hi Guys,

I am trying to install OpenStack in my Ubuntu machine, but I am getting error while installing. I tried to remove "simplejson" but not able to do so.

$ sudo apt-get remove simplejson

Can anyone help me regarding this?

Thank You

Mar 20 in OpenStack by akhtar
• 25,210 points
1,799 views

1 answer to this question.

0 votes

Hi@akhtar,

This error occurs because of pip install command. Follow the below given steps.

  1. Go to the devstack folder.
  2. Edit the inc/python file
  3. Change line 198.
  4. from: $cmd_pip $upgrade $install_test_reqs \
  5. to: $cmd_pip $upgrade $install_test_reqs --ignore-installed \
Thank You
answered Mar 20 by MD
• 57,060 points

I ran into same issue, tried from both Ubuntu 18 and Ubuntu 20

Attempting uninstall: simplejson
Found existing installation: simplejson 3.16.0
ERROR: Cannot uninstall 'simplejson'. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall.

line 198 in inc/python is not the same as answered by MD. Here are lines 198-200 from the said file.

198         SETUPTOOLS_SYS_PATH_TECHNIQUE=rewrite \
199         $cmd_pip $upgrade \
200         $@

This issue got resolved with:

sudo apt purge python3-simplejson. However it got error on exit 139
same problem I had another error this time with " pysan1-modules"
did you fix it ?

You can use the below command to download this module.

$ pip install pyasn1-modules

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