{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Reading data interactively"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "cat hello.py\n",
    "#!/usr/bin/env python3\n",
    "\n",
    "name = input(\"Please enter your name: \")\n",
    "print(\"Hello, \" + name)\n",
    "\n",
    "# ./hello.py \n",
    "# Please enter your name: Roger\n",
    "# #Output will be Hello, Roger"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "# defining a function called 'to_seconds' which takes hours, minutes and seconds as\n",
    "# inputs and returns their total equivalent in seconds by multiplying each with its\n",
    "# corresponding factor (3600 for hours, 60 for minutes) and then summing them up.\n",
    "def to_seconds(hours, minutes, seconds):\n",
    "    return hours*3600+minutes*60+seconds\n",
    "\n",
    "# Print a welcome message to the user\n",
    "print(\"Welcome to this time converter\")\n",
    "\n",
    "# set 'cont' variable to \"y\" initially for entering into while loop.\n",
    "cont = \"y\"\n",
    "\n",
    "# while condition is true (user wants to continue), keep asking the\n",
    "# number of hours, minutes and seconds from the user and print their total equivalent\n",
    "# in seconds by calling 'to_seconds' function. Ask if they want to do another conversion.\n",
    "# If not, break the loop.\n",
    "while(cont.lower() == \"y\"):\n",
    "    hours = int(input(\"Enter the number of hours: \"))\n",
    "    minutes = int(input(\"Enter the number of minutes: \"))\n",
    "    seconds = int(input(\"Enter the number of seconds: \"))\n",
    "\n",
    "    print(\"That's {} seconds\".format(to_seconds(hours, minutes, seconds)))\n",
    "    print()\n",
    "    cont = input(\"Do you want to do another conversion? [y to continue] \")\n",
    "    \n",
    "# print a goodbye message when user decides to stop the program.\n",
    "print(\"Goodbye!\")\n"
   ]
  }
 ],
 "metadata": {
  "language_info": {
   "name": "python"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 2
}