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Asked: 2018-06-15 06:02:15 +0800 CST

Python matplotlib - ImportError: No module named functools_lru_cache

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I have installed matplotlib for Python using pip which was completed without error. Yet I get this error when I try to import it:

import matplotlib
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/rishabh/.local/lib/python2.7/site-packages/matplotlib/__init__.py", line 131, in <module>
    from matplotlib.rcsetup import defaultParams, validate_backend, cycler
  File "/home/rishabh/.local/lib/python2.7/site-packages/matplotlib/rcsetup.py", line 29, in <module>
    from matplotlib.fontconfig_pattern import parse_fontconfig_pattern
  File "/home/rishabh/.local/lib/python2.7/site-packages/matplotlib/fontconfig_pattern.py", line 28, in <module>
    from backports.functools_lru_cache import lru_cache
ImportError: No module named functools_lru_cache
python pip matplotlib

2 Answers

  1. try this I had same problem this morning

    sudo apt-get install python-matplotlib

    I also am using python3.7 a little later after I installed a few modules. I ran.

    pip3 install matplotlib

    I can now import matplotlib.

    • 5

  2. Uninstall first 

    pip uninstall backports.functools_lru_cache

    and then re-install it 

    pip install backports.functools_lru_cache

    like described in this answer.

    • 4