views.py 文件源码

def qrcode_view(request, key):
    wallet = get_object_or_404(Wallet, key=key)
    img = qrcode.make(
        wallet.bcaddr_uri, box_size=6, error_correction=qrcode.ERROR_CORRECT_M)
    output = StringIO.StringIO()
    img.save(output, "PNG")
    c = output.getvalue()
    return HttpResponse(c, content_type="image/png")