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import pandas as pd import matplotlib.pyplot as plt from matplotlib import style style.use('ggplot') 

gives me an error message:

Traceback (most recent call last): File "", line 2, in ImportError: No module named 'matplotlib'

So I go to cmd and typed pip install matplotlib but I get 'Requirement already satisfied'.

I am not really sure what to do....

8
  • what version of python are you using to run your code? I men how are you running your code. Commented May 27, 2017 at 2:38
  • Just checking, are you sure you installed it for the correct version of Python? Commented May 27, 2017 at 2:39
  • 2
    quite simply you are mixing wrong python versions or wrong virtualenvs Commented May 27, 2017 at 2:40
  • Hi, I am using Pycharm and I believe the version is 3.5 Commented May 27, 2017 at 2:41
  • so if I were to remove old versions then it should work? Commented May 27, 2017 at 2:42

2 Answers 2

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Based on the information you have provided. Go to PyCharm Preferences. Then go to Project:your-project-name, inside this to Project Interpreter. enter image description here

and make sure this interpreter has installed matplotlib. Othersiwe, click on the + sign and add the library you need.enter image description here

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3 Comments

Nice nice nice, just good, that's an example of a perfect answer ;)
Sorry and thank you. I solved the problem. I was doing 'pip install matplotlib' in a different directory. For some reason, I had two different directories 'Scripts', one of which contains pip and the other doesnt.
@JunJang, it's okay. Just consider this solution as an alternative. You probably are using virtual environments (not sure).
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If you want to install a package in pycharm, follow the instructions here:

https://www.jetbrains.com/help/pycharm/2017.1/installing-uninstalling-and-upgrading-packages.html

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