02 - The absolute basics.ipynb

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   "source": [
    "# The absolute basics"
   ]
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   "source": [
    "## Ways to run python"
   ]
  },
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    "- Interactive interpreter: Go to the terminal and run `python`.\n",
    "- Running a script: Go to the terminal and run `python name_of_your_script.py`. Try it out with the script `module.py`.\n",
    "- Multiple tools that uses python, like integrated development environments (IDEs), or jupyter notebooks, which are what we're using today."
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "The jupyter notebook: text cells and executable code cells with output underneath."
   ]
  },
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   ],
   "source": [
    "1 + 1"
   ]
  },
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   "source": [
    "## Comments"
   ]
  },
  {
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   "source": [
    "# This is a comment\n",
    "\n",
    "# There is no such thing as multiple lines comments.\n",
    "# Just add # in front of each line."
   ]
  },
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   "source": [
    "## Names and values\n",
    "\n",
    "Lowercase letters with underscores"
   ]
  },
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   "source": [
    "Name errors"
   ]
  },
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   "source": [
    "*Note: always read the exception.*"
   ]
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   "source": [
    "## Numbers\n",
    "\n",
    "`+, -, *, /, %, **, ()`"
   ]
  },
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   "source": [
    "*Note: the result of division is always a float. You can explicitly convert to int by _casting_.*"
   ]
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   "source": [
    "*Note: large numbers.*"
   ]
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   "source": [
    "## Booleans"
   ]
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   "source": [
    "`and`, `or`, and `not`"
   ]
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   "source": [
    "**Question: XOR?**"
   ]
  },
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   "source": [
    "## `None`"
   ]
  },
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     "text": [
      "here\n"
     ]
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  },
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   "source": [
    "## Strings\n",
    "\n",
    "Single / double quotes. Why?"
   ]
  },
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   "metadata": {},
   "source": [
    "`len`"
   ]
  },
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  },
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    "`str` methods"
   ]
  },
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  },
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   "source": [
    "The `in` operator"
   ]
  },
  {
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  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "*Note: functions vs. methods vs. operators*"
   ]
  },
  {
   "cell_type": "markdown",
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   "source": [
    "Slicing"
   ]
  },
  {
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   "execution_count": null,
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  {
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   "source": [
    "String formatting / interpolation"
   ]
  },
  {
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   "execution_count": null,
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  },
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   "metadata": {},
   "source": [
    "*Note: [there are many ways to format a string](https://zerokspot.com/weblog/2015/12/31/new-string-formatting-in-python/)*"
   ]
  },
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   "cell_type": "markdown",
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   "source": [
    "## Casting\n",
    "\n",
    "`str`, `bool`, `int`, `float`"
   ]
  },
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   "source": [
    "*Note: `None`, `0`, and empty strings/lists/dicts/tuples all evaluate to `False`, hence \"falsy\". All other values are \"truthy\".*"
   ]
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   "metadata": {},
   "source": [
    "## *Exercise*\n",
    "\n",
    "Write code that output a sentence with your mother name and the age she was when you were born. For me, the solution is `'My mother, Irit, was 24 years old when I was born'`. Change the variables and write the code to produce your version of the sentence."
   ]
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   "source": [
    "# --- CHANGE THE VALUES ------ #\n",
    "my_age = 31\n",
    "my_mothers_age = 55\n",
    "my_mothers_name = 'Irit'\n",
    "\n",
    "# --- WRITE YOUR CODE HERE --- #\n",
    "\n",
    "# ---------------------------- #"
   ]
  }
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