i have 2 pages in a flask project. On page 1 i enter data, which I then send to another python script which I execute.
After the script is finished I want to redirect the page to page 2, where I want to use a csv file created by the python script on page 1.
I’ve started with the following code, without a redirect:

@app.route('/page1', methods=['GET', 'POST'])
def page1():
    if request.method == 'POST':
        var = request.form['var']

        script_path = os.path.join(os.path.dirname(_file_), 'python', 'script.py')

        result = subprocess.run([sys.executable, script_path, var], capture_output=True, text=True)


        return f"<pre>{result.stdout}</pre><br><pre>{result.stderr}</pre>"


    return render_template('page1.html')

This works fine, so the script is executed and after the csv is created the page reloads and my debug message is displayed.

Now I tried adding the redict by replacing the last return with:

return redirect(url_for('page2'))

The redirect itselfs, works, but I get redirected instantly, so the python script is not executed and because of that the csv file is not created…

What am I doing wrong?

Thank you for your help!

dont really now what else i should try