31

I want to be able to visit a webpage and it will run a python function and display the progress in the webpage.

So when you visit the webpage you can see the output of the script as if you ran it from the command line.

Based on the answer here

How to continuously display python output in a webpage?

I am trying to display output from PYTHON

I am trying to use Markus Unterwaditzer's code with a python function.

import flask
import subprocess

app = flask.Flask(__name__)

def test():
    print "Test"

@app.route('/yield')
def index():
    def inner():
        proc = subprocess.Popen(
            test(),
            shell=True,
            stdout=subprocess.PIPE
        )

        while proc.poll() is None:
            yield proc.stdout.readline() + '<br/>\n'
    return flask.Response(inner(), mimetype='text/html')  # text/html is required for most browsers to show the partial page immediately

app.run(debug=True, port=5005)

And it runs but I don't see anything in the browser.

4

2 に答える 2

33

こんにちは、テスト関数を呼び出したくないようですが、出力を提供する実際のコマンド ライン プロセスです。また、proc.stdout.readline などから iterable を作成します。また、Python から、必要な Python コードをサブプロセスにプルして別のファイルに入れる必要があることを含めるのを忘れていたと言いました。

import flask
import subprocess
import time          #You don't need this. Just included it so you can see the output stream.

app = flask.Flask(__name__)

@app.route('/yield')
def index():
    def inner():
        proc = subprocess.Popen(
            ['dmesg'],             #call something with a lot of output so we can see it
            shell=True,
            stdout=subprocess.PIPE
        )

        for line in iter(proc.stdout.readline,''):
            time.sleep(1)                           # Don't need this just shows the text streaming
            yield line.rstrip() + '<br/>\n'

    return flask.Response(inner(), mimetype='text/html')  # text/html is required for most browsers to show th$

app.run(debug=True, port=5000, host='0.0.0.0')
于 2013-03-12T06:04:05.857 に答える