带有 headerSection: AttributeError: __enter__答案

【问题标题】：with headerSection: AttributeError: __enter__带有 headerSection: AttributeError: __enter__
【发布时间】：2022-08-16 16:15:27
【问题描述】：

我是 python 和 streamlit 的新手。我正在尝试为我的应用程序创建一个登录过程。但是当我尝试运行应用程序时，我收到以下错误。

with headerSection: AttributeError: __enter__

import streamlit as st
from user import login

headerSection = st.container
mainSection = st.container
loginSection = st.container
logoutSection = st.container

def main_page():
    with mainSection:
        st.text(\"Things to do\")

def loggedOut_clicked():
    st.session_state[\'loggedIn\'] = False


def logout_page():
    loginSection.empty();
    with logoutSection:
        st.button(\"Log out\", key=\"logout\", on_click=loggedOut_clicked)


def loggedIn_clicked(userName, password):
    if login(userName, password):
        st.session_state[\'loggedIn\'] = True
    else:
        st.session_state[\'loggedIn\'] = False
        st.error(\"Invalid user name or password\")


def login_page():
    with loginSection:
        if st.session_state[\'loggedIn\'] == False:
            userName = st.text_input(placeholder=\"Enter emailAddress\")
            password = st.text_input(placeholder=\"Enter password\", type=\"password\")
            st.button(\"Login\", on_click=loggedIn_clicked, args=(userName, password))


with headerSection:
    st.title(\"Talent Search\")
    if \'loggedIn\' not in st.session_state:
        st.session_state[\'loggedIn\'] = False
        login_page()
    else:
        if st.session_state[\'loggedIn\']:
            logout_page()
            main_page()

我使用 \'streamlit run app.py\' 来运行应用程序

谢谢

标签： python-3.x streamlit

【解决方案1】：

因为您的 st.container 缺少括号(), 你需要添加()到你的容器st.container()

headerSection = st.container()  # Add () to st.container
mainSection = st.container()  # Add () to st.container
loginSection = st.container()  # Add () to st.container
logoutSection = st.container()  # Add () to st.container

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