Issue with matplotlib out of the blue

Question

I am getting this issue

Traceback (most recent call last):
  File "Path.py", line 4, in <module>
    import matplotlib.pyplot as plt
  File "C:\Python27\lib\site-packages\matplotlib\__init__.py", line 131, in <module>
    from matplotlib.rcsetup import defaultParams, validate_backend, cycler
  File "C:\Python27\lib\site-packages\matplotlib\rcsetup.py", line 29, in <module>
    from matplotlib.fontconfig_pattern import parse_fontconfig_pattern
  File "C:\Python27\lib\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

I have tried so far:-

To uninstall functools_lru_cache and install it again
To uninstall matplotlib and install it again
Removing the folders from site-dist and installing again

I have installed Python and Pylint for VS Code when it broke. It is not only related to VS Code, I cannot run the code directly from CMD either.

It seems a dependencies trouble. you should check if you have that library installed... — Julio CamPlaz, Mar 26 '18 at 11:08
What is your python file called? if it is called path.py, it may cause issues...try renaming it — CodeCupboard, Mar 26 '18 at 11:10
@JulioCamPlaz when I am trying to install it through pip it says I am already meeting the requirements and that it is installed. — Rasmus Ekman, Mar 26 '18 at 11:17
@CodeCupboard the file has a different name, masked the path as it was a long windows path. But the files name is "Test.py". Which worked before the weekend. — Rasmus Ekman, Mar 26 '18 at 11:18
Do you have to do it with matplotlib??? Have you tried with bokeh or another library? — Julio CamPlaz, Mar 26 '18 at 11:23

score 0 · Answer 1 · answered Mar 26 '18 at 11:10

0

Consider using this technique for importing the ‘lru_cache’ function:

try:
    from functools import lru_cache
except ImportError:
    from backports.functools_lru_cache import lru_cache

Anyway, this is the website: https://pypi.python.org/pypi/backports.functools_lru_cache

you can do it this way too in a line command

pip install backports.functools_lru_cache

answered Mar 26 '18 at 11:10

Julio CamPlaz

857
8
18

Tried these from other stackoverflow posts. But didnt help me. – Rasmus Ekman Mar 26 '18 at 11:16

Issue with matplotlib out of the blue

1 Answers1