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Publish Ch. 28
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‎assets/book/learn_python_with_jupyter.pdf

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‎assets/notebooks/28_function_inputs.ipynb

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{
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"cells": [
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"# 28. Printing *Thank you* cards\n",
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"\n",
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"## Function inputs\n",
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"\n",
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"[Learn Python with Jupyter](https://learnpythonwithjupyter.com/) by [Serena Bonaretti](https://sbonaretti.github.io/) \n",
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"Narrative license: [CC BY-NC-SA](https://creativecommons.org/licenses/by-nc-sa/2.0/). Code license: [GNU-GPL v3](https://www.gnu.org/licenses/gpl-3.0.en.html) \n",
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"\n",
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"---"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"## 1. Basic *Thank you* cards\n",
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"- You recently hosted a party, and you want to send *Thank you* cards to those who attended. Create\n",
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"a function that takes a first name as an argument and prints a *Thank you* message containing an\n",
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"attendee’s name (e.g., *Thank you Maria*): "
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"def print_thank_you(first_name): \n",
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" \"\"\"Prints a string containing \"Thank you\" and a first name\n",
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" \n",
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" Parameters\n",
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" ----------\n",
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" first_name: string\n",
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" First name of a person\n",
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" \"\"\"\n",
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" \n",
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" print (\"Thank you\", first_name)"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"- Print two *Thank you* cards: "
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"print_thank_you(\"Maria\")"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"print_thank_you(\"Xiao\")"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"---\n",
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"## 2. Formal *Thank you* cards\n",
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"- After a second thought, you decide that it is more appropriate to print formal Thank you cards. Mod-\n",
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"ify the previous function to take three arguments—prefix, first name, and last name—and to print\n",
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"a thank you message containing them (e.g., *Thank you Mrs. Maria Lopez*): "
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"def print_thank_you(prefix, first_name, last_name): \n",
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" \"\"\"Prints a string containing \"Thank you\" and the inputs\n",
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" \n",
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" Parameters\n",
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" ----------\n",
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" prefix: string\n",
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" Usually Ms, Mrs, Mr\n",
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" first_name: string\n",
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" First name of a person\n",
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" last_name: string\n",
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" Last name of a person\n",
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" \"\"\"\n",
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"\n",
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" print (\"Thank you\", prefix, first_name, last_name)"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"- Print two formal *Thank you* cards: "
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"print_thank_you(\"Mrs\", \"Maria\", \"Lopez\")"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"print_thank_you(\"Mr\", \"Xiao\", \"Li\")"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"---\n",
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"## 3. Last name missing! \n",
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"- You are very happy with the *Thank you* cards, but you suddenly realize that some participants did\n",
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"not provide their last names! Adapt the function so that the last name has an empty string as a\n",
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"default value:"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"def print_thank_you(prefix, first_name, last_name=\"\"): \n",
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" \"\"\"Prints a string containing \"Thank you\" and the inputs\n",
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" \n",
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" Parameters\n",
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" ----------\n",
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" prefix: string\n",
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" Usually Ms, Mrs, Mr\n",
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" first_name: string\n",
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" First name of a person\n",
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" last_name: string\n",
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" Last name of a person. The default is an empty string\n",
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" \"\"\"\n",
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" \n",
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" print (\"Thank you\", prefix, first_name, last_name)"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"- Print two *Thank you* cards, one with a last name and one without a last name:"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"print_thank_you(\"Mrs\", \"Maria\", \"Lopez\")"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"print_thank_you(\"Mr\", \"Xiao\")"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"---\n",
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"## 4. Prefix and/or first name missing! \n",
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"- Finally, you realize that prefix and/or first name are also missing for some guests. Modify the function accordingly:"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"def print_thank_you(prefix=\"\", first_name=\"\", last_name=\"\"): \n",
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" \"\"\"Prints each input and a string containing \"Thank you\" and the inputs\n",
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" \n",
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" Parameters\n",
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" ----------\n",
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" prefix: string\n",
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" Usually Ms, Mrs, Mr. The default is an empty string\n",
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" first_name: string\n",
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" First name of a person. The default is an empty string\n",
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" last_name: string\n",
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" Last name of a person. The default is an empty string\n",
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" \"\"\"\n",
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" \n",
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" print (\"Prefix:\", prefix)\n",
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" print (\"First name:\", first_name)\n",
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" print (\"Last name:\", last_name)\n",
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" print (\"Thank you\", prefix, first_name, last_name)"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"- Print a *Thank you* card where the *first name* is missing:"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
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"tags": []
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},
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"outputs": [],
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"source": [
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"print_thank_you(prefix=\"Mrs\", last_name=\"Lopez\")"
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]
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},
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{
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"cell_type": "markdown",
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"metadata": {},
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"source": [
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"- Print a *Thank you* card where the *prefix* is missing:"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {
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"tags": []
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},
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"outputs": [],
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"source": [
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"print_thank_you(first_name=\"Xiao\", last_name=\"Li\")"
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]
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3 (ipykernel)",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"codemirror_mode": {
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"name": "ipython",
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"version": 3
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},
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"file_extension": ".py",
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"mimetype": "text/x-python",
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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"version": "3.9.6"
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},
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"widgets": {
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"application/vnd.jupyter.widget-state+json": {
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"state": {},
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"version_major": 2,
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"version_minor": 0
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}
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}
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},
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"nbformat": 4,
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"nbformat_minor": 4
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}

‎index.html

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<div class="col-lg-12">
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<div class="progress">
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<span class="skill">BOOK COMPLETION <i class="val">73%</i></span>
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<span class="skill">BOOK COMPLETION <i class="val">75%</i></span>
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<div class="progress-bar-wrap">
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<div class="progress-bar" role="progressbar" aria-valuenow="73" aria-valuemin="0" aria-valuemax="100"></div>
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<div class="progress-bar" role="progressbar" aria-valuenow="75" aria-valuemin="0" aria-valuemax="100"></div>
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</div>
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</div>
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<center>Next upload: <b>Chapter 28</b> on <b>September 9</b> </center>
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<center>Next upload: <b>Chapter 29</b> on <b>November 18</b> </center>
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</div>
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</div>
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<div class="resume-item pb-0">
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<h4>PART 8: Functions </h4>
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<ol start="28">
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<li>Stationary for a party<br> <i>Function inputs</i></li>
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<a href="assets/notebooks/28_function_inputs.ipynb" onclick="download" ></a><li>Printing Thank you cards<br> <i>Function inputs</i></li>
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<li>Username and password<br> <i>Function outputs</i></li>
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<li>People's age and odd numbers<br> <i>Type and value errors, and return</i></li>
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<li>Factorials<br> <i>Recursive functions</i></li>

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