How to make IPython notebook matplotlib plot inline

I am trying to use IPython notebook on MacOS X with Python 2.7.2 and IPython 1.1.0.

I cannot get matplotlib graphics to show up inline.

    import matplotlib
    import numpy as np
    import matplotlib.pyplot as plt
    %matplotlib inline

I have also tried %pylab inline and the ipython command line arguments --pylab=inline but this makes no difference.

    x = np.linspace(0, 3*np.pi, 500)
    plt.plot(x, np.sin(x**2))
    plt.title('A simple chirp')
    plt.show()

Instead of inline graphics, I get this:

    <matplotlib.figure.Figure at 0x110b9c450>

And matplotlib.get_backend() shows that I have the 'module://IPython.kernel.zmq.pylab.backend_inline' backend.

I used %matplotlib inline in the first cell of the notebook and it works. I think you should try:

    %matplotlib inline

    import matplotlib
    import numpy as np
    import matplotlib.pyplot as plt

You can also always start all your IPython kernels in inline mode by default by setting the following config options in your config files:

    c.IPKernelApp.matplotlib=<CaselessStrEnum>
      Default: None
      Choices: ['auto', 'gtk', 'gtk3', 'inline', 'nbagg', 'notebook', 'osx', 'qt', 'qt4', 'qt5', 'tk', 'wx']
      Configure matplotlib for interactive use with the default matplotlib backend.

From: stackoverflow.com/q/19410042

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