import os
from flask import Flask, request, redirect, url_for, send_from_directory, render_template
from werkzeug.utils import secure_filename

UPLOAD_FOLDER = 'C:\Python27\Hernya'
ALLOWED_EXTENSIONS = set(['png', 'jpg', 'jpeg'])

app = Flask(__name__)
app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER

def allowed_file(filename):
    return '.' in filename and \
           filename.rsplit('.', 1)[1] in ALLOWED_EXTENSIONS

@app.route('/', methods=['GET', 'POST'])
def upload_file():
    if request.method == 'POST':
        file = request.files['file']
        if file and allowed_file(file.filename):
            filename = secure_filename(file.filename)
            file.save(os.path.join(app.config['UPLOAD_FOLDER'], filename))
            return redirect(url_for('uploaded_file',
                                    filename=filename))
    return render_template("t1.html")

@app.route('/uploads/<filename>')
def uploaded_file(filename):
    return render_template('t2.html', filename=filename)

if __name__=="__main__":
    app.run(debug=True)