When import matplotlib.pyplot cannot be done in pyenv-virtualenv environment

environment

OS:ubuntu14.04 LTS pyenv virtualenv 3.5.2 xxx to build python3 environment afterwards, pip install matplotlib Install matplotlib with: No problem so far. Dohama from here. In a dialogue environment >>>import matplotlib.pyplot When you do

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/user/.pyenv/versions/pyenv3.5.2/lib/python3.5/site-packages/matplotlib/pyplot.py", line 115, in <module>
    _backend_mod, new_figure_manager, draw_if_interactive, _show = pylab_setup()
  File "/home/user/.pyenv/versions/pyenv3.5.2/lib/python3.5/site-packages/matplotlib/backends/__init__.py", line 32, in pylab_setup
    globals(),locals(),[backend_name],0)
  File "/home/user/.pyenv/versions/pyenv3.5.2/lib/python3.5/site-packages/matplotlib/backends/backend_tkagg.py", line 6, in <module>
    from six.moves import tkinter as Tk
  File "/home/user/.pyenv/versions/pyenv3.5.2/lib/python3.5/site-packages/six.py", line 92, in __get__
    result = self._resolve()
  File "/home/user/.pyenv/versions/pyenv3.5.2/lib/python3.5/site-packages/six.py", line 115, in _resolve
    return _import_module(self.mod)
  File "/home/user/.pyenv/versions/pyenv3.5.2/lib/python3.5/site-packages/six.py", line 82, in _import_module
    __import__(name)
  File "/home/user/.pyenv/versions/3.5.2/lib/python3.5/tkinter/__init__.py", line 35, in <module>
    import _tkinter # If this fails your Python may not be configured for Tk
ImportError: No module named '_tkinter'

I get an error like this and can't take a step forward. I searched various sites and rewritten the backend of matplotlibrc, I tried putting in freetype and libpng, but it didn't work at all.

Conclusion

Change the version of matplotlib. If you check with pip freeze etc. and it is matplotlib == 2.0.0,

(xxx)pip uninstall matplotlib
(xxx)pip install matplotlib==1.4.3 * xxx is the virtualenv environment name

Try installing the previous version with. In my case, this succeeded in ʻimport of matplotlib.pyplot`.

Reference: matplotlib.pyplot stopped working well with version 1.5.0 @Mac

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