关于python：Flask中request.method ==’POST’时python：Redirect()不起作用

Redirect() is not working when request.method == 'POST' in Flask

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我正在构建一个Web应用程序，并尝试使用redirect()函数链接两个html。但是，当我单击"提交"按钮时，login.html不会重定向到success.html(即浏览器仍在login.html中)

下面是我的python代码：

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from flask import Flask, redirect, url_for, render_template, request, abort
app = Flask(__name__)

@app.route('/')
def index():
return render_template('login.html')

@app.route('/login',methods = ['POST', 'GET'])
def login():
if request.method == 'POST':
if request.form['username'] == 'admin':
return redirect(url_for('success'))
else:
abort(401)
else:
return redirect(url_for('index'))

@app.route('/success', methods = ['POST', 'GET'])
def success():
return 'logged in successfully'

if __name__ == '__main__':
app.run(debug = True)

还有html代码：

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<html>
<body>
<form action ="login" method ="post">
<p>Enter Name:</p>
<p><input type ="text" name ="username" /></p>
<p><input type ="submit" value ="submit" /></p>
</form>
</body>
</html>