Embedded Files
Python Enhancement Proposals, PEPs, provide guidance for many aspects of programming in Python. One of particular importance to this class is PEP 20, The Zen of Python. Keep it in mind as you make decisions about your programs. Another one to consider is PEP 8, but keep in mind this is the most important part of PEP 8.
How to take a screenshot of a window
How to take a screenshot of a window
- Press Shift-Command-4. The pointer changes to a crosshair.
- Press the Space bar. The pointer changes to a camera.
- Move the camera over a window to highlight it.
- Click your mouse or trackpad. To cancel, press the Esc (Escape) key before you click.
- Find the screenshot as a .png file on your desktop.
Practice Making Functions
Practice Making Functions
CodingBat by Nick Parlante is a site to practice writing code to solve relatively simple problems involving strings, list, and boolean logic.
Running your program
Running your program
This video above demonstrates using terminal to run a Python 3 program.
The above video by Raymond Hettinger covers quickly many ways to improve your Python code including some techniques useful for the final project.
Printing without making a newline
Printing without making a newline
A comma at the end of a print statement enabled printing without a newline at the end in Python 2, but in Python 3 the print function keyword argument "end" changes the default from a newline to any other string. An empty string provides the same behavior as a comma in Python 2.
print('some string', end='')Installing the required software on your Mac
Installing the required software on your Mac
- Copy the installation command from the Homebrew page.
- Open a terminal window and paste the command copied in step 1 (provide your admin password when prompted.)
- When the script completes, type the command
brew doctorto confirm the installation completed successfully.
Use the following commands at the prompt as shown below to install the software packages:
$ brew install git$ brew install python3$ brew cask install github$ brew cask install atomThe software is now ready to use. Every week or two run the command brew upgrade to keep the software up to date.
Creating a local Git repository using terminal
Creating a local Git repository using terminal
Open a terminal window and type the following commands:
- cd gitDestinationFolder
- git init
- git clone GitHub repository url . (The period places files in the current directory.)
- git remote -v (To view the current repositories for the project.)
- git branch -a (To view the branches.)
You will need to enter your GitHub username & password if prompted to do so.
Note: Creating the repository may need to be performed at the start of each class due to the way school computers are managed, but only once on a personal device where user data is saved. Be sure you commit any changes and run git push origin master at the end of each work session or class as well as git pull origin master at the beginning.
Git Tutorial for Beginners_ Command-Line Fundamentals.mp4Git Tutorial for Beginners: Command-Line Fundamentals
git command reference
atlassian-git-cheatsheet.pdfLinux Installation (Debian)
Linux Installation (Debian)
( Triple-click to copy an entry. Always precede installations with: sudo apt update )
Install Visual Studio Code
Download and install the signing key:
curl https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor > microsoft.gpgsudo install -g root -o root -m 644 microsoft.gpg /usr/share/keyrings/microsoft-archive-keyring.gpgAdd the repository to the sources:
sudo sh -c 'echo "deb [arch=amd64 signed-by=/usr/share/keyrings/microsoft-archive-keyring.gpg] https://packages.microsoft.com/repos/vscode stable main" > /etc/apt/sources.list.d/vscode.list'Install the program:
sudo apt updatesudo apt install code # or code-insidersInstall Chrome (optional)
Download and install the signing key:
curl https://dl.google.com/linux/linux_signing_key.pub | gpg --dearmor > google.gpgsudo install -g root -o root -m 644 google.gpg /usr/share/keyrings/google-archive-keyring.gpgAdd the repository to the sources:
sudo sh -c 'echo "deb [arch=amd64 signed-by=/usr/share/keyrings/google-archive-keyring.gpg] https://dl.google.com/linux/chrome/deb/ stable main" > /etc/apt/sources.list.d/google-chrome.list'Install the program:
sudo apt updatesudo apt install google-chrome-stableInstall Atom (***Something is broken with atom. The reason for the two line key download is the slow response of the server yielding an error when utilizing curl. The installation runs smoothly, but the program fails to open.***)
Download and install the signing key:
wget -O atom https://packagecloud.io/AtomEditor/atom/gpgkeygpg --dearmor atomsudo install -g root -o root -m 644 atom.gpg /usr/share/keyrings/atom-archive-keyring.gpgAdd the repository to the sources:
sudo sh -c 'echo "deb [arch=amd64 signed-by=/usr/share/keyrings/atom-archive-keyring.gpg] https://packagecloud.io/AtomEditor/atom/any/ any main" > /etc/apt/sources.list.d/atom.list'Install the program:
sudo apt updatesudo apt install atomNote: GitHub Desktop is not currently usable on Linux so the command line git commands must be used.
Beautiful is better than ugly.Explicit is better than implicit.Simple is better than complex.Complex is better than complicated.Flat is better than nested.Sparse is better than dense.Readability counts.Special cases aren't special enough to break the rules.Although practicality beats purity.Errors should never pass silently.Unless explicitly silenced.In the face of ambiguity, refuse the temptation to guess.There should be one-- and preferably only one --obvious way to do it.Although that way may not be obvious at first unless you're Dutch.Now is better than never.Although never is often better than *right* now.If the implementation is hard to explain, it's a bad idea.If the implementation is easy to explain, it may be a good idea.Namespaces are one honking great idea -- let's do more of those!(The above quote of PEP 20 from the documentation provided by the Python Software Foundation is in the public domain.)
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