08 - Modules and packages.ipynb

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  {
   "cell_type": "markdown",
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   "source": [
    "# Modules"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Check out `module.py`."
   ]
  },
  {
   "cell_type": "code",
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   "metadata": {},
   "outputs": [],
   "source": [
    "import module"
   ]
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  },
  {
   "cell_type": "code",
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   "source": [
    "from module import add"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "**Question: What happens when importing a module?**"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "`__name__` is the name of the module, or `__main__` if we asked python to run a module as a script with, for example, `python module.py`."
   ]
  },
  {
   "cell_type": "markdown",
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   "source": [
    "# Packages\n",
    "\n",
    "A folder with an `__init__.py` file."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "import package.foo"
   ]
  },
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   "execution_count": null,
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   "outputs": [],
   "source": [
    "package.foo.bar()"
   ]
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   "cell_type": "code",
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   "outputs": [],
   "source": [
    "package.foo.baz()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "from package import foo\n",
    "foo.bar()\n",
    "foo.baz()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
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   "source": [
    "import package"
   ]
  },
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   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "package.bar()"
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   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": [
    "package.baz()"
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