[Django]-Give a bytes to reportlab.lib.utils.ImageReader

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I think you have to pass buff to ImageReader somehow.

I’m using this function to save and draw the figures I generate with matplotlib and it works perfectly for me.

seek(offset, whence=SEEK_SET) Change the stream position to the given offset. Behaviour depends on the whence parameter. The default value for whence is SEEK_SET.

getvalue() doesn’t work except the seek(0)

def save_and_draw(fig, x_img, y_img, width_img=width_img, height_img=height_img): 
    imgdata = BytesIO()
    fig.savefig(imgdata, format='png')
    imgdata.seek(0)
    imgdata = ImageReader(imgdata)
            
    self.c.drawImage(imgdata, x_img, y_img, width_img, height_img)
    plt.close(fig)
👤Murilo Sitonio

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