Matplotlib into a Django Template

Question

Im using python 3.4 and Django 1.8. I want to \"print\" a matplotlib result in a Django template. I reach this a few days ago, so I continue in other things of my Django App

Answer 1

    from io import BytesIO
    import base64
    import matplotlib.pyplot as plt
    import numpy as np

    def graphic(request):

        pos = np.arange(10)+ 2 

        fig = plt.figure(figsize=(8, 3))
        ax = fig.add_subplot(111)

        ax.barh(pos, np.arange(1, 11), align='center')
        ax.set_yticks(pos)
        ax.set_yticklabels(('#hcsm',
            '#ukmedlibs',
            '#ImmunoChat',
            '#HCLDR',
            '#ICTD2015',
            '#hpmglobal',
            '#BRCA',
            '#BCSM',
            '#BTSM',
            '#OTalk',), 
            fontsize=15)
        ax.set_xticks([])
        ax.invert_yaxis()

        ax.set_xlabel('Popularity')
        ax.set_ylabel('Hashtags')
        ax.set_title('Hashtags')

        plt.tight_layout()

        buffer = BytesIO()
        plt.savefig(buffer, format='png')
        buffer.seek(0)
        image_png = buffer.getvalue()
        buffer.close()

        graphic = base64.b64encode(image_png)
        graphic = graphic.decode('utf-8')

        return render(request, 'graphic.html',{'graphic':graphic})

and in the template:

I have:

matplotlib==3.0.2 and Django==2.1.4