在Django项目中嵌入绘图动画

Question

我跟随this tutorial使用matplotlib创建了一个图表动画。现在我想把这个图表嵌入到django项目中，我遵循了显示静态图像的this tutorial，而我想要一个动态图像。我对matplotlib非常了解，这是我在utilis.py中写的

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

import cryptocompare
from datetime import datetime 
from matplotlib.animation import FuncAnimation

def get_graph():
    buffer = BytesIO()
    plt.savefig(buffer, format='svg')
    buffer.seek(0)
    image_svg= buffer.getvalue()
    graph = base64.b64decode(image_svg)
    graph = graph.decode('utf-8')
    buffer.close()
    return graph

#get price of cryptocurrency
def get_crypto_price(cryptocurrency,currency):
    return cryptocompare.get_price(cryptocurrency,currency=currency)[cryptocurrency][currency]

#get fullname of the cryptocurrency
def get_crypto_name(cryptocurrency):
    return cryptocompare.get_coin_list()[cryptocurrency]['FullName'] 

# set style 
plt.style.use('seaborn')

#X: datetime objects, Y: price
x_vals = []
y_vals = []

#animate function evry second
def animate(i):

    plt.switch_backend('AGG')
    plt.figure()

    x_vals.append(datetime.now())
    y_vals.append(get_crypto_price('ETH', 'EUR'))

    plt.cla()

    #specify plot title
    plt.title(get_crypto_name('ETH') + 'Price live plotting')

    plt.gcf().canvas.set_window_title('Live Plotting ETH')
    plt.xlabel('Date')
    plt.ylabel('Price (EUR)')

    #actual plottib
    plt.plot_date(x_vals,y_vals,linestyle="solid",ms=0)

    plt.tight_layout()
    graph = get_graph()    
    return graph

#call animate function
ani = FuncAnimation(plt.gcf(), animate, interval=1000)

这是views.py

from django.shortcuts import render

# Create your views here.
from django.http import HttpResponse
from .utilis import animate

def index_view(request):
    chart = animate()
    return render(request, 'cryptochart/index.html', {'chart': chart})

这是index.html

{% if chart %}
        <img src="data:image/svg;base64, {{chart|safe}}">
    {% endif %}  

如果我运行代码，我得到的错误是：

animate() missing 1 required positional argument: 'i'

但我不知道如何解决这个问题，提前谢谢