Art Collective
Let this inspire a website or two.
Is it a title/caption generating app? Does it find random photos and feature one a day with this caption? Does it secretly hack into your computer and take a picture of you?(Don’t do that last one.) When you’re ready, make a website.
Things I might want to fork and install
GFBOOM! | Jennifer Dewalt – google font browser
Color Jam | Jennifer Dewalt -instrument app
Paths | Jennifer Dewalt -make drawings with words
Chatty Room | Jennifer Dewalt -meet someone at a site, chat them up.
Pollsie | Jennifer Dewalt -easy to make one question anonymous polls
Moment Of Peace | Jennifer Dewalt – modify this for asmr
You Are Here | Jennifer Dewalt – this seems amusing… just spits out pictures taken nearby.
Image Palette | Jennifer Dewalt Palette from Image. Clean interface. This is how I get most of my palettes, nice to have a web app.
Song Machine | Jennifer Dewalt relaxing
First: Download the Google App Engine SDK – App Engine — Google Cloud Platform
Then open Google App Engine Launcher.
This is the simplest app and it’s all created by naming it “helloworld.” However, making an app that actually does stuff is something else. Continue to follow this blog for more details.
Joe Parente and Joey Perrott are doing afternoon sessions with the Web Coding Bootcamp. I’m learning a lot and transcribing my notes down below.
In our first python project, we’re working on a quote database using The Python NDB Datastore API.
As started the day before, the afternoon session continued on with fleshing out the methods associated with the QuoteModel class in our database. The first step was to list all of the behaviors and then write the methods.
In this project, we used both Class and Instance methods.
The instructors emphasized how simple methods are. You describe what they take, what they do, and what they return. In class, we split up into groups to write different methods that will be used in the data base.
I was in the delete group. We broke down the method into parts. Select the quote, confirm delete, put quote in the trash box, and hide quote on display. And we were wrong. The instructors told us to think like a computer. We’re deep into the back-end of the process. We’re at the point of actually deleting something.
The process of deleting a thing in a database. You get the id. In this method, we start out with the id, then find the entity it’s attached to, then delete the key. Apparently, if you delete a key to an entity, you essentially delete the entity.¹
In the making of a method, developers ask themselves, now, how would I break this. In this case, it would be to give a nonexisting ID number. So, we must validate that the id exists in the database. A simple “if not” (I like python, so clean.) will do the trick.
At first we raised a generic exception, but we were advised to make a custom exception, that way when we’re debugging, it will point to the exact problem and we will be better able to handle it. To make a custom exception, create a new class outside of the class (put it with the rest of your exception classes, you’ll probably have a few) and then call it in the method (as seen below).
In the following method, one of the parameters it takes in is **kwargs. It’s kind of a way of saying “stuff.” The important part is the asterisks and by convention, should name it kwargs, but you can name it anything. It just means that it can handle what you throw in.
“You would use *args when you’re not sure how many arguments might be passed to your function, i.e. it allows you pass an arbitrary number of arguments to your function.” — and kwargs are named arguments.
Source: python – *args and **kwargs? – Stack Overflow
One can tell that one of the instructors wrote this code. There’s really excellent code comments. Each code comment states what the method does, what it takes in and what it returns. As for knowing what expressions to use, that could be found in the NDB Datastore API. Finding what you need takes some time and knowledge about how databases work.
This group’s challenge was to make sure that a person could only upvote a thing once and to remove the vote if the method was called again by the same user (a functionality similar to the “like button” on Facebook). Their solution was to require the username of the user to run the method and then storing that in the list and if that person’s name is already in the list they are taken out of the list.
A couple of days ago, I painted this. It was an afternoon where I had a friend over and thought it would be a fun time to break out the acrylics. I call this painting “Leaf falling under bridge in a small town.” I was talking to Ryan, as we were trying to name it, giving examples of pretentious titles for works and I liked it and thought it fit. I was originally going to call it “Birth” because the central figure kind of looks like a fetus.
Here’s the painting underneath it. A couple of months ago, I was painting under the influence and started to see things in the painting and elaborated on that. The swooping yellow became too phallic to ignore, so I tried to make it more “kid friendly” by adding a pegasus playing chess, but that became a strangely square pepperoni pizza. I knew then that I would paint this over the first chance I got.
Joe Parente and Joey Perrott are doing afternoon sessions with the Web Coding Bootcamp. I’m learning a lot and transcribing my notes down below.
Python is an interpreted¹ programming language. It supports multiple programming paradigms, but the instructors mostly focused on the object oriented (OO) style. Everything can be understood as an object. Functions (methods²) and classes define actions and attributes for objects. There are statements (if, for, while, try, etc.) and expressions. Included data types are integers, strings, dictionaries, lists and my favorite tuple³ (mostly because it sounds cute).
I’m approaching this subject after becoming somewhat familiar with javascript so a lot of my learning is a bit of a translation from one programming language to another. Some things are the same like “append” but “prompt” becomes “raw input.” The list of Python reserved words and builtins will be good to memorize. The slicing is a little different from JavaScript Array slice() Method syntatically.
There was a lot to be learned about classes. Classes have attributes and methods. Def__init__ defines the construction.
“The __init__ method (init for initialise) is called when the object is instantiated. Instantiation is done by (effectively) calling the class.”
Source: Introduction to OOP with Python
Handling Exceptions is the way Python doesn’t break when expected disconnects occur. Using a try block you can catch an error and have the program do something else.
Python works in and with other frameworks and languages:
There are two types of databases, relational and non-relational⁴. In our first python project, we’ll be working on a quote database using The Python NDB Datastore API.
First, as a class, we created a model (a well defined data structure) with just attributes. Then, we translated that into a syntactically correct model that used Property Classes such as StringProperty.
Source: java – Compiled vs. Interpreted Languages – Stack Overflow
2. Methods are associated with a class or instance, and “standalone functions” are not.
Source: python – Difference between methods and functions – Stack Overflow
3. The point of a tuple is that the i-th slot means something specific. In other words, it’s a index-based (rather than name based) datastructure.
Source: James Tauber : Python Tuples are Not Just Constant Lists
4. Therefore, in my opinion, the main difference is about how do you store the data and the storage level of the relationships between them.
Source: What is the difference between a Relational and Non-Relational Database? – Stack Overflow
.mouseover(): source
Bind an event handler to the “mouseover” JavaScript event, or trigger that event on an element.
.hover(): source
Bind one or two handlers to the matched elements, to be executed when the mouse pointer enters andleaves the elements.
Calling $(selector).hover(handlerIn, handlerOut) is shorthand for: $(selector).mouseenter(handlerIn).mouseleave(handlerOut);
.mouseenter(): source
Bind an event handler to be fired when the mouse enters an element, or trigger that handler on an element.
mouseover fires when the pointer moves into the child element as well, while mouseenter fires only when the pointer moves into the bound element.
Because of this, .mouseover() is not the same as .hover(), for the same reason .mouseover() isnot the same as .mouseenter().
$('selector').mouseover(over_function) // may fire multiple times
// enter and exit functions only called once per element per entry and exit
$('selector').hover(enter_function, exit_function) from Nerketur Kamachi at Mouseover vs Hove
“In OO [object oriented] world, the two are commonly used to mean the same thing.
From a pure Math and CS perspective, a function will always return the same result when called with the same arguments ( f(x,y) = (x + y) ). A method on the other hand, is typically associated with an instance of a class. Again though, most modern OO languages no longer use the term “function” for the most part. Many static methods can be quite like functions, as they typically have no state (not always true).”
from TheSoftwareJedi at the Difference between a Method and a Function
Kismet Arts Tangent 