Python 烧瓶错误请求错误；由于多个POST请求而出现问题

上面是我的Python/Flask代码

问题是，当我点击UpdateDescriptionSubmit按钮（即html代码中处理的第二篇文章）时，我得到一个400错误

@app.route("/gallery-manager", methods = ["GET", "POST"])
def gallery_manager():
if request.method == "POST":    
    if(request.form["image-url"] and request.form["description"]) is not None:
        model.add_new_image(request.form["image-url"], request.form["description"])
        id, image, description, amount_of_images = model.get_gallery()
        return render_template("gallery-manager.html", image = image, description = description, amount_of_images = amount_of_images, id = id)


    if request.form['update-description'] is not None:
        print("hello")



id, image, description, amount_of_images = model.get_gallery()
return render_template("gallery-manager.html", image = image, description = description, amount_of_images = amount_of_images, id = id)

我意识到，当其中一个POST字段为空且无法找到时，就会发生此错误。我知道这是因为当我点击第二个POST submit按钮时，它会运行第一个POST检查（request.form[“image url”]等），并发现它满足了运行该代码的要求，但无法运行，因为更新描述仍然为空。我如何避免这种情况

换句话说，我如何处理多个POST方法

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谢谢，

这是因为表单中缺少表单应发送请求的操作部分

Bad Request
The browser (or proxy) sent a request that this server could not understand.

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我将其发送到html代码所在的原始页面，并收到相同的错误。我将其发送到另一个带有POST方法处理程序的页面，但仍然收到相同的错误。我的另一个POST请求没有任何操作，工作正常（位于其上方）。我回答了您的问题。不抱歉，仍然是相同的错误。无论如何，谢谢

Bad Request
The browser (or proxy) sent a request that this server could not understand.

<form  action="/whereYouWantToSendRequest" method="post">

  <input type="text" name="image-url" value = "new"/>
    <input type="text" name="update-description" value = "update"/>

if request.form["image-url"] == "new":
     somethinggg
elif request.form["update-description"] =="update":
     sommmm