python 2.7 functools_lru_cache does not import although installed

Question

When I try to import matplotlib I get an error

Traceback (most recent call last):
  File \"\", line 1, in 
  File \"/usr/local/lib         


        

Answer 1

I had the same problem but I fixed it.

Uninstall first

pip uninstall backports.functools_lru_cache

and then re-install it.

pip install backports.functools_lru_cache

Now I'm able to import matplotlib. Hope this helps.

Answer 2

I had same issue, re-installation of backports.functools_lru_cache resolved the issue

Answer 3

The pip command was actually the pip3, and the "ImportError" was happening when I used python (2.7).

pip2 uninstall backports.functools_lru_cache

then,

pip2 install backports.functools_lru_cache

fixed my problem.

Answer 4

If someone is still having that problem and reinstalling backports.functools_lru_cache do not work in his case, as it was in my case, then probably installing older version of matplotlib would work. For example:

pip install matplotlib==2.0.2

Problem occurred for version 2.2.0, I switched to 2.0.2 and it is working now. I did not check other versions.

Answer 5

You are using pyhton 2. try to use pip2 instead:

• pip2 uninstall matplotlib
• sudo apt-get autoremove python-matplotlib
• sudo apt-get install python-matplotlib

Answer 6

Also meet this issue on Ubuntu 16. Uninstall & reinstall not work for me.

My solution is reinstall from apt.

pip uninstall matplotlib
sudo apt-get autoremove python-matplotlib
sudo apt-get install python-matplotlib