J.A.R.V.I.S (source code)

At First You need some modules to run your J.A.R.V.I.S . Then what are the requirements ?

certifi==2017.11.5

chardet==3.0.4

gTTS==1.2.2

gTTS-token==1.1.1

idna==2.6

mpg123==0.4

PyAudio==0.2.11

pytz==2017.3

requests==2.18.4

SpeechRecognition==3.8.1

urllib3==1.24.2

beautifulsoup4==4.6.0

weather-api==0.0.4

The main source code of J.A.R.V.I.S  is 

from gtts import gTTS

import speech_recognition as sr

import os

import re

import webbrowser

import smtplib

import requests

from weather import Weather

def talkToMe(audio):

    "speaks audio passed as argument"

    print(audio)

    for line in audio.splitlines():

        os.system("say " + audio)

    #  use the system's inbuilt say command instead of mpg123

    #  text_to_speech = gTTS(text=audio, lang='en')

    #  text_to_speech.save('audio.mp3')

    #  os.system('mpg123 audio.mp3')

def myCommand():

    "listens for commands"

    r = sr.Recognizer()

    with sr.Microphone() as source:

        print('Ready...')

        r.pause_threshold = 1

        r.adjust_for_ambient_noise(source, duration=1)

        audio = r.listen(source)

    try:

        command = r.recognize_google(audio).lower()

        print('You said: ' + command + '\n')

    #loop back to continue to listen for commands if unrecognizable speech is received

    except sr.UnknownValueError:

        print('Your last command couldn\'t be heard')

        command = myCommand();

    return command

def assistant(command):

    "if statements for executing commands"

    if 'open reddit' in command:

        reg_ex = re.search('open reddit (.*)', command)

        url = 'https://www.reddit.com/'

        if reg_ex:

            subreddit = reg_ex.group(1)

            url = url + 'r/' + subreddit

        webbrowser.open(url)

        print('Done!')

    elif 'open website' in command:

        reg_ex = re.search('open website (.+)', command)

        if reg_ex:

            domain = reg_ex.group(1)

            url = 'https://www.' + domain

            webbrowser.open(url)

            print('Done!')

        else:

            pass

    elif 'what\'s up' in command:

        talkToMe('Just doing my thing')

    elif 'joke' in command:

        res = requests.get(

                'https://icanhazdadjoke.com/',

                headers={"Accept":"application/json"}

                )

        if res.status_code == requests.codes.ok:

            talkToMe(str(res.json()['joke']))

        else:

            talkToMe('oops!I ran out of jokes')

    elif 'current weather in' in command:

        reg_ex = re.search('current weather in (.*)', command)

        if reg_ex:

            city = reg_ex.group(1)

            weather = Weather()

            location = weather.lookup_by_location(city)

            condition = location.condition()

            talkToMe('The Current weather in %s is %s The tempeture is %.1f degree' % (city, condition.text(), (int(condition.temp())-32)/1.8))

    elif 'weather forecast in' in command:

        reg_ex = re.search('weather forecast in (.*)', command)

        if reg_ex:

            city = reg_ex.group(1)

            weather = Weather()

            location = weather.lookup_by_location(city)

            forecasts = location.forecast()

            for i in range(0,3):

                talkToMe('On %s will it %s. The maximum temperture will be %.1f degree.'

                         'The lowest temperature will be %.1f degrees.' % (forecasts[i].date(), forecasts[i].text(), (int(forecasts[i].high())-32)/1.8, (int(forecasts[i].low())-32)/1.8))

    elif 'email' in command:

        talkToMe('Who is the recipient?')

        recipient = myCommand()

        if 'John' in recipient:

            talkToMe('What should I say?')

            content = myCommand()

            #init gmail SMTP

            mail = smtplib.SMTP('smtp.gmail.com', 587)

            #identify to server

            mail.ehlo()

            #encrypt session

            mail.starttls()

            #login

            mail.login('username', 'password')

            #send message

            mail.sendmail('John Fisher', 'JARVIS2.0@protonmail.com', content)

            #end mail connection

            mail.close()

            talkToMe('Email sent.')

        else:

            talkToMe('I don\'t know what you mean!')

talkToMe('I am ready for your command')

#loop to continue executing multiple commands

while True:

    assistant(myCommand())

Don't copy this code. At first learn then apply --sagnik sarkar