Lessons/Lesson04_Lists_Intro.ipynb

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    "# Lists\n",
    "Lists can be used to group different values together - it's just a collection of things.\n",
    "\n",
    "You can make a list in Python by putting different things in a box of brackets `[]` separated by commas:"
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   "source": [
    "# command Python to make a list and store it in my_list\n",
    "my_list = ['pizza', 'fries', 3, -2.5, 'donuts']\n",
    "\n",
    "# command Python to print my_list\n"
   ]
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   "source": [
    "Now let's make a list of fruit and save it to the variable `fruit`. Have your list include apple, banana, grape, and any other fruit you want!"
   ]
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   "source": [
    "# command Python to make a list of fruit including apple, banana, and grape\n",
    "\n",
    "# command Python to print the list of fruit\n"
   ]
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   "source": [
    "You can also see how many things there are in your list using `len`:"
   ]
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   "source": [
    "# command Python to find the length of my_list\n"
   ]
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   "source": [
    "Let's find the length of `fruit` list:"
   ]
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   "outputs": [],
   "source": [
    "# command Python to find the length of your fruit list\n"
   ]
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   "source": [
    "To add lists together, all you have to do is use the `+` operator."
   ]
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   "source": [
    "# command python to add my_list and fruit\n"
   ]
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   "source": [
    "You can also make a list that includes variables:"
   ]
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   "source": [
    "# assign the value 1 to the variable a\n",
    "\n",
    "# assign the value 2 to the variable b\n"
   ]
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   "source": [
    "# make a list including values and variables and save it to the variable numbers\n",
    "numbers = [0, a, b, a+b]\n",
    "# print the numbers list\n"
   ]
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   "source": [
    "To add a value to a list, you can use `.append()`:"
   ]
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   "source": [
    "# append 4 to the list numbers\n",
    "numbers.append(4)\n",
    "# print numbers\n"
   ]
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   "source": [
    "Let's add mango to our fruit list:"
   ]
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    "# add mango to fruit list\n",
    "\n",
    "# print fruit\n"
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   "source": [
    "You just learned how to:\n",
    "* Make a list ([])\n",
    "* Find the length of a list (len)\n",
    "* Add lists together (+)\n",
    "* Add things to a list (.append)\n",
    "\n",
    "Now it's time to practice what you learned!"
   ]
  }
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