Installation Issue with matplotlib Python [duplicate]

python macos matplotlib anaconda

This question already has answers here: python matplotlib framework under macosx? (11 answers) Closed 8 years ago.

I have issue after installing the matplotlib package unable to import matplotlib.pyplot as plt. Any suggestion will be greatly appreciate.

>>> import matplotlib.pyplot as plt
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "//anaconda/lib/python2.7/site-packages/matplotlib-1.3.1-py2.7-macosx-10.5-x86_64.egg/matplotlib/pyplot.py", line 98, in <module>
    _backend_mod, new_figure_manager, draw_if_interactive, _show = pylab_setup()
  File "//anaconda/lib/python2.7/site-packages/matplotlib-1.3.1-py2.7-macosx-10.5-x86_64.egg/matplotlib/backends/__init__.py", line 28, in pylab_setup
    globals(),locals(),[backend_name],0)
  File "//anaconda/lib/python2.7/site-packages/matplotlib-1.3.1-py2.7-macosx-10.5-x86_64.egg/matplotlib/backends/backend_macosx.py", line 21, in <module>
    from matplotlib.backends import _macosx
**RuntimeError**: Python is not installed as a framework. The Mac OS X backend will not be able to function correctly if Python is not installed as a framework. See the Python documentation for more information on installing Python as a framework on Mac OS X. Please either reinstall Python as a framework, or try one of the other backends.

This link reports to the same issue you are presenting here.

Running pythonw instead of python worked for me

J4cK

Problem Cause

In mac os image rendering back end of matplotlib (what-is-a-backend to render using the API of Cocoa by default). There are Qt4Agg and GTKAgg and as a back-end is not the default. Set the back end of macosx that is differ compare with other windows or linux os.

Solution

I assume you have installed the pip matplotlib, there is a directory in your root called ~/.matplotlib.

Create a file ~/.matplotlib/matplotlibrc there and add the following code: backend: TkAgg

From this link you can try different diagrams.

Yep, this works! If anyone wants to understand what happened, see matplotlib.org/faq/usage_faq.html#what-is-a-backend

Some users may not want to change the backend for all of their scripts. This page -- matplotlib.org/faq/usage_faq.html#what-is-a-backend -- tells another way: include the statement import matplotlib as mpl then mpl.use('TkAgg') right after that, then do the import for pyplot.

As a follow up question, why is there a folder .matplotlib in my root folder instead of in the virtual environment where I installed it?

Python 3.3.6, I get this:

File "/opt/local/Library/Frameworks/Python.framework/Versions/3.3/lib/python3.3/tkinter/__init__.py", line 40, in <module> import _tkinter # If this fails your Python may not be configured for Tk ImportError: No module named '_tkinter'

Thanks for this :D I used virtualenv with your fix and it worked for me!

Installation Issue with matplotlib Python [duplicate]

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