intro-to-python/03_conditionals/04_review.ipynb

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{
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"source": [
"# Chapter 3: Conditionals & Exceptions (Review Questions)"
]
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"cell_type": "markdown",
"metadata": {},
"source": [
"The questions below assume that you have read [Chapter 3 <img height=\"12\" style=\"display: inline-block\" src=\"../static/link/to_nb.png\">](https://nbviewer.jupyter.org/github/webartifex/intro-to-python/blob/develop/03_conditionals/00_content.ipynb).\n",
"\n",
"Be concise in your answers! Most questions can be answered in *one* sentence."
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Essay Questions "
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"**Q1**: What is the **singleton** design pattern? How many objects does the expression `[True, False, True, False]` generate in memory?"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
" < your answer >"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"**Q2**: What do we mean when we talk about **truthy** and **falsy** expressions?"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
" < your answer >"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"**Q3**: Describe in your own words the concept of **short-circuiting**! What does it imply for an individual sub-expression in a boolean expression?"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
" < your answer >"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"**Q4**: Explain how the conceptual difference between a **statement** and an **expression** relates to the difference between a **conditional statement** and a **conditional expression**."
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
" < your answer >"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"**Q5**: Why is the use of **temporary variables** encouraged in Python?"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
" < your answer >"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"**Q6**: What does the `finally`-clause enforce in this code snippet? How can a `try` statement be useful *without* an `except`-clause?"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"```python\n",
"try:\n",
" print(\"Make a request to a service on the internet\")\n",
"finally:\n",
" print(\"This could be clean-up code\")\n",
"```"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
" < your answer >"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## True / False Questions"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"Motivate your answer with *one short* sentence!"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"**Q7**: The objects `True`, `False`, and `None` represent the idea of *yes*, *no*, and *maybe* answers in a natural language.\n",
"\n",
"Hint: you also respond with a code cell."
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
" < your answer >"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"**Q8**: The `try` statement is useful for handling **syntax** errors."
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
" < your answer >"
]
}
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"name": "python",
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"pygments_lexer": "ipython3",
"version": "3.12.2"
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"toc": {
"base_numbering": 1,
"nav_menu": {},
"number_sections": false,
"sideBar": true,
"skip_h1_title": true,
"title_cell": "Table of Contents",
"title_sidebar": "Contents",
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