文章目录

Python for Everybody
- 课程简介
- Installing Python
- - Getting started with Python on a Macintosh
  - Writing a Python 3 program on Macintosh
  - Starting Terminal on Macintosh OS/X
  - Where Are You?
  - Where can you go?
  - Running Your Python Program in the Terminal

Python for Everybody

Exploring Data Using Python 3
Dr. Charles R. Severance

课程简介

Python for Everybody 零基础程序设计（Python 入门）

This course aims to teach everyone the basics of programming computers using Python. 本课程旨在向所有人传授使用 Python 进行计算机编程的基础知识。

We cover the basics of how one constructs a program from a series of simple instructions in Python. 我们介绍了如何通过 Python 中的一系列简单指令构建程序的基础知识。

The course has no pre-requisites and avoids all but the simplest mathematics. Anyone with moderate computer experience should be able to master the materials in this course. 该课程没有任何先决条件，除了最简单的数学之外，避免了所有内容。任何具有中等计算机经验的人都应该能够掌握本课程中的材料。

This course will cover Chapters 1-5 of the textbook “Python for Everybody”. Once a student completes this course, they will be ready to take more advanced programming courses. 本课程将涵盖《Python for Everyday》教科书的第 1-5 章。学生完成本课程后，他们将准备好学习更高级的编程课程。

This course covers Python 3.

coursera

Python for Everybody 零基础程序设计（Python 入门）

Charles Russell Severance
Clinical Professor

个人主页
Twitter

University of Michigan

课程资源

coursera原版课程视频
coursera原版视频-中英文精校字幕-B站
Dr. Chuck官方翻录版视频-机器翻译字幕-B站

PY4E-课程配套练习
Dr. Chuck Online - 系列课程开源官网

Installing Python

Getting started with Python on a Macintosh

Getting started with Python on a Macintosh

Python 2 and Python 3 are already installed on Macintosh OS/X operating system so all you need to add is a programmer text editor.

Installing A Programmer Text Editor

If you already have a programmer text editor like VS-Code installed you can use it in the class or you can install it on your system.

https://code.visualstudio.com/

If the installation for VSCode looks a little too complex, we recommend the free and open source Brackets text editor. It is easy to install and is very capable for your needs in the course.

https://brackets.io/

Writing a Python 3 program on Macintosh

We have a short step-by-step video showing how to use a programmer editor and write your first Python 3 program.
This video uses the Bracket editor - which we suggest you to install and use, or the VS-Code, if you don’t already have a programming text editor.

https://www.youtube.com/watch?v=9lOdVSNUKfY

Starting Terminal on Macintosh OS/X

The Terminal program on Macintosh is kind of buried under Macintosh HD -> Applications -> Utilities -> Terminal

There are several shortcuts that you might find helpful. You can go into the upper-right of your screen and click on the Spotlight search button and type terminal and you can execute Terminal from the pop-up list of items.

You can get Terminal to stay in your dock once terminal is launched by clicking and holding on the Terminal icon in the dock and then selecting “Keep in Dock”. Then you can quickly launch Terminal by clicking on the icon in the dock.

Where Are You?

When the command line starts up, you are in your “home” directory. In each of these examples, your logged in account should be used instead of csev.

    Macintosh Home Directory:        /Users/csev

The command line prompt usually includes some clue as to where you are at in the folder structure on your hard drive. If you want to really figure out where you are, on Macintosh use the pwd command.

    udhcp-macvpn-624:~ csev$ pwd/Users/csevudhcp-macvpn-624:~ csev$

Where can you go?

Generally the first thing you want to do when you open a command line interface is to navigate to the right folder. Say you wanted to run a file from your desktop. The command is cd Desktop

    udhcp-macvpn-624:~ csev$ pwd/Users/csevudhcp-macvpn-624:~ csev$ cd Desktopudhcp-macvpn-624:Desktop csev$ pwd/Users/csev/Desktopudhcp-macvpn-624:Desktop csev$

Nifty Trick: On the cd command, you can partially type a folder name like Desktop and then press the TAB key and the system will auto-complete the folder name if you have typed enough that the system can accurately guess what you mean to type.

Going Backwards (or Upwards)

You can change directory to the parent folder (the folder “above” the folder you are in using the cd … command.
It just says “go up one”.

    udhcp-macvpn-624:Desktop csev$ pwd/Users/csev/Desktopudhcp-macvpn-624:Desktop csev$ cd ..udhcp-macvpn-624:~ csev$ pwd/Users/csevudhcp-macvpn-624:~ csev$

If you get Lost…
If you can’t figure out what folder you are in and/or cannot figure out how to get to the folder you want to get to “home” simply close and re-open the Command Line / Terminal window.

What Files/Folders are Here?

You can list the contents of the current directory using the ls -l command.

    udhcp-macvpn-624:Desktop csev$ pwd/Users/csev/Desktopudhcp-macvpn-624:Desktop csev$ ls -l total 8-rw-r--r--  1 csev  staff   15 Sep 16 15:17 hello.pyudhcp-macvpn-624:Desktop csev$

Running Your Python Program in the Terminal

Start the Terminal program, navigate to the proper directory and type the following command:

    python3 hello.py

This loads the Python 3 interpreter and runs firstprog.py, showing the program output and / or errors in the Terminal window.

Some Cool Hints on The Macintosh Terminal Program

You can scroll back through previous commands by pressing the up and down arrows and re-execute commands using the enter key. This can save a lot of typing. If you like keeping your screen uncluttered, you can clear the scroll back buffer by pressing the Command key and the K key at the same time.

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Chapter 1-2: Installing Python - Installing Python 3 on a Macintosh | Python for Everybody 讲义笔记_En

文章目录

Python for Everybody

课程简介

Installing Python

Getting started with Python on a Macintosh

Writing a Python 3 program on Macintosh

Starting Terminal on Macintosh OS/X

Where Are You?

Where can you go?

Running Your Python Program in the Terminal

Chapter 1-2: Installing Python - Installing Python 3 on a Macintosh | Python for Everybody 讲义笔记_En相关推荐

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