flask_file_upload

index.py

from flask import Flask,render_template,jsonify,Response,json,url_for,request


import os
app = Flask(__name__)
UPLOAD_FOLDER=os.path.basename("uploads")
ALLOWED_EXTENSIONS = set(['csv'])
app.config['UPLOAD_FOLDER']=UPLOAD_FOLDER

def allowed_file(filename):
    return '.' in filename and \
           filename.rsplit('.', 1)[1] in ALLOWED_EXTENSIONS
@app.route('/')
def hello_world():
    return render_template("home.html")

@app.route('/keywords')
def keywords():
    data= jsonify(
        username="vikas",
        email="vikas",
        id=12
    )
    return data

@app.route('/upload',methods=['GET','POST'])
def upload():
    if request.method=="POST":
        file= request.files.get('csvupload')
        f = os.path.join(app.config['UPLOAD_FOLDER'], file.filename)
        file.save(f)
        print (file)
        return render_template("files.html")
    else:
        return render_template("files.html")

@app.route('/about')
def about():
    return 'my website quick easy and simple'

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