如何在flas中显示类对象的列表

Question

我有一个python列表，其中列表中的每个元素都是类的对象：

message = [
    <File(tar_file:appstream-glib-0.1.5.tar.xz, filename:/appstream-glib-0.1.5/config.guess, sha256:4a86808b907403ad6801c0661a4524dfa07c0b898a2cef6e7fa0cf82a09b9c53)>, 
    <File(tar_file:totem-3.12.1.tar.xz, filename:/totem-3.12.1/build-aux/config.guess, sha256:4a86808b907403ad6801c0661a4524dfa07c0b898a2cef6e7fa0cf82a09b9c53)>,
    <File(tar_file:gvfs-1.20.2.tar.xz, filename:/gvfs-1.20.2/config.guess, sha256:4a86808b907403ad6801c0661a4524dfa07c0b898a2cef6e7fa0cf82a09b9c53)>,
    <File(tar_file:gnome-software-3.12.2.tar.xz, filename:/gnome-software-3.12.2/config.guess, sha256:4a86808b907403ad6801c0661a4524dfa07c0b898a2cef6e7fa0cf82a09b9c53)>,
    <File(tar_file:gnome-packagekit-3.12.2.tar.xz, filename:/gnome-packagekit-3.12.2/config.guess, sha256:4a86808b907403ad6801c0661a4524dfa07c0b898a2cef6e7fa0cf82a09b9c53)>,
    <File(tar_file:gnome-color-manager-3.12.2.tar.xz, filename:/gnome-color-manager-3.12.2/config.guess, sha256:4a86808b907403ad6801c0661a4524dfa07c0b898a2cef6e7fa0cf82a09b9c53)>,
    <File(tar_file:gnome-chess-3.12.2.tar.xz, filename:/gnome-chess-3.12.2/config.guess, sha256:4a86808b907403ad6801c0661a4524dfa07c0b898a2cef6e7fa0cf82a09b9c53)>,
    <File(tar_file:gnome-power-manager-3.12.2.tar.xz, filename:/gnome-power-manager-3.12.2/config.guess, sha256:4a86808b907403ad6801c0661a4524dfa07c0b898a2cef6e7fa0cf82a09b9c53)>,
    <File(tar_file:evolution-mapi-3.12.2.tar.xz, filename:/evolution-mapi-3.12.2/config.guess, sha256:4a86808b907403ad6801c0661a4524dfa07c0b898a2cef6e7fa0cf82a09b9c53)>,
    <File(tar_file:cockpit-0.7.tar.bz2, filename:/cockpit-0.7/tools/config.guess, sha256:4a86808b907403ad6801c0661a4524dfa07c0b898a2cef6e7fa0cf82a09b9c53)>,
    <File(tar_file:xf86-video-freedreno-1.1.0.tar.bz2, filename:/xf86-video-freedreno-1.1.0/config.guess, sha256:4a86808b907403ad6801c0661a4524dfa07c0b898a2cef6e7fa0cf82a09b9c53)>, 
    <File(tar_file:elfutils-0.159.tar.bz2, filename:/elfutils-0.159/config/config.guess, sha256:4a86808b907403ad6801c0661a4524dfa07c0b898a2cef6e7fa0cf82a09b9c53)>,
    <File(tar_file:ibus-table-1.5.0.20140519.tar.gz, filename:/ibus-table-1.5.0.20140519/config.guess, sha256:4a86808b907403ad6801c0661a4524dfa07c0b898a2cef6e7fa0cf82a09b9c53)>, 
    <File(tar_file:fence-agents-4.0.9.tar.xz, filename:/fence-agents-4.0.9/config.guess, sha256:4a86808b907403ad6801c0661a4524dfa07c0b898a2cef6e7fa0cf82a09b9c53)>
]

列表中每个元素的类型是->；类summershum.model.File

我想通过flask将列表作为响应返回，并在本地主机上显示其内容，但它不显示任何内容。在

我就是这样做的。在

^{pr2}$

正确的做法是什么？在

Answer 1

这是通常将对象从视图返回到样板的方式：

在视图方法中：

@app.route('/files')
def display_files():
    '''code to retrieve list of file objects'''
    return render_template('files.html', all_files=all_files)

然后在模板文件中，您可以访问all_files作为：

^{pr2}$

烧瓶模板文档here