如何将以Dash编写的网站显示为静态PDF(Python)？

Question

我想将我在dash中制作的网站导出为静态PDF.这是我网站的代码(它只是一个包含3列的图表):

import dash
import dash_core_components as dcc
import dash_html_components as html
import pdfkit
from flask import Flask, render_template, make_response

app = dash.Dash()
app.layout = html.Div(
                className="three columns",
                children=html.Div([
                    dcc.Graph(
                        id='right-top-graph',
                        figure={
                            'data': [{
                                'x': [1, 2, 3],
                                'y': [3, 1, 2],
                                'type': 'bar'
                            }],
                            'layout': {
                                'height': 400,
                                'margin': {'l': 10, 'b': 20, 't': 0, 'r': 0}
                            }
                        }
                    ),


                ])
            )

app.css.append_css({
    'external_url': 'https://codepen.io/chriddyp/pen/bWLwgP.css'
})

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

我尝试使用pdfkit将此代码添加到我的脚本中,但它不起作用(收到一个错误,告诉我render_template()需要1个位置参数但是给出了2个):

rendered = render_template('pdf_template.html',app)
pdf = pdfkit.from_string(rendered, False)
response = make_response(pdf)
response.headers['Content-Type'] = 'application/pdf'
response.headers['Content-Disposition'] = 'attachment; filename=output.pdf'

有没有人知道如何将我的破折号网站转换为PDF？

提前致谢.

Answer 1

您是否尝试过按以下方式运行脚本（我刚刚将脚本的 pdf 创建部分粘贴到呈现仪表板站点的位置）：

import dash
import dash_core_components as dcc
import dash_html_components as html
import pdfkit
from flask import Flask, render_template, make_response

app = dash.Dash()
app.layout = html.Div(
                className="three columns",
                children=html.Div([
                    dcc.Graph(
                        id='right-top-graph',
                        figure={
                            'data': [{
                                'x': [1, 2, 3],
                                'y': [3, 1, 2],
                                'type': 'bar'
                            }],
                            'layout': {
                                'height': 400,
                                'margin': {'l': 10, 'b': 20, 't': 0, 'r': 0}
                            }
                        }
                    ),


                ])
            )

app.css.append_css({
    'external_url': 'https://codepen.io/chriddyp/pen/bWLwgP.css'
})

rendered = render_template('pdf_template.html',app)
pdf = pdfkit.from_string(rendered, False)
response = make_response(pdf)
response.headers['Content-Type'] = 'application/pdf'
response.headers['Content-Disposition'] = 'attachment; filename=output.pdf'



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