#!/usr/bin/env python3
# -*- coding: utf-8 -*-

"""
Felix Muzny
11/15/2022
DS 2000
Lecture 19 - classes and objects

Logistics:
    - Homework 8 is out
        - this is your last HW for DS 2000
        - there is a significant amount of extra credit available
        - due on Friday
        
    - OH this week
        - 2 - 8pm today
        - I'll also be devoting time in lecture to HW 8 questions
    
    - Next week:
        - yes, we have class on 11/22
        - yes, there will be a remote option
        - yes, "I'm out of town" is a valid reason to attend remotely
        - yes, I do expect you to attend :)

    - There is a quiz this week, due before class on Friday
        - https://www.gradescope.com/courses/408909/assignments/2392869
        
    - remote attendance (https://bit.ly/remote-ds2000-muzny)
    
    
Three ways to participate in multiple choice questions
 1) via the PollEverywhere website: https://pollev.com/muzny
 2) via text: text "muzny" to the number 22333 to join the session
 3) via Poll Everywhere app (available for iOS or Android)
"""


"""
Classes and Objects
---
Warning! vocabulary ahead!

It is often useful for us to use *abstraction* as programmers.

For example, we use `list`s in our code. 
Does the computer actually have a list that it has created?


The typical way that we approach abstraction (across many languages) is through classes.

class: a blue print of some *thing* that we want to represent

object: a specific *instance* of a class


For example, if the class is `Professor`, 
then `felix = Professor("Felix")` would be the instance; 
`felix` is an object of type `Professor`.
"""


# right now, we're pretty much stuck with:


"""
Class design
---

Whenever we want to design a class, we want to answer two questions:

1. What traits does this thing *have*?

These things will become class attributes.

2. What should this thing be able to *do*?

These things will become methods.
"""

"""
Attributes & Methods
---

An attribute is like a variable that belongs to a specific object.

A method is like a function that belongs to a particular class.
"""

"""
Syntax
---

Define a class with the code

class ClassName:
    
    def method_name(self, params):
        # code
"""


# An example class


# this tells python "I'm defining a class now!"


"""
Instantiating objects
---

Wait, but how are objects created???

Like, in the code?

A special method called a constructor is called when you want to 
create an object (or "instantiate a class").

Inside your class:
    


Then, later:

variable = ClassName(parameters AFTER self)

"""

# what is the data type of felix?

# how do you access attributes of an object?

# how do you call methods of an object?


"""
Wait, what have we done?
---

- learned how to create *custom data types* 
by defining our own python classes
- learned how to instantiate python classes
- made our world ever more complex


Every data type in python is a class—you've been using these all along!
In particular, any data type that you can call a function on is a class!

- strings
- lists
- dicts
- sets
"""

"""
Cool-downs/examples that *might* be helpful for HW 8
---
"""

# # 1 - what does the following code print?
# line = "We'll be DESTROYED for sure"
# for word in line:
#     print(word)
    
    
# # 2 - what edits can you make to the following code to fix it?
# line = "We'll be DESTROYED for sure"
# for word in line:
#     print(word)
    
    
# # 3 - will "found one!" ever be printed?
# # if not, fix this code so that it will
# line = "We'll be DESTROYED for sure"
# key_words = ["destroyed", "killed", "ruined"]
# for word in line:
#     if word in key_words:
#         print("found one!")
        
        
# # 4 - edit this code so that it prints each word
# # in lower case, with ' removed
# line = "We'll be DESTROYED for sure"
# for word in line:
#     print(word)


"""
The rest of class today
---

1. Work time for HW 8
    - if you have finished loading in your data *and* calculated the sentiment
    score for one line of dialogue, you are free to go/take care of 
    what you need to do.
    - else, please stay here and get that data loaded!
    -> if you're stuck, read piazza, post a question, or ask me a question!

2. If you haven't completed your TRACE reports, please do. Here's why:

    - I *do* read these reports to get feedback and to adjust courses

    - I have two asks for you:
        -> if there are things that you liked, please tell me, so
        that I can keep them!
        -> if there are things that you would like to see changed, please
        be specific, so that I can make adjustments!
        
    (- finally, these reports *are* used by university administration/my bosses)
"""








# Next Time
# ---
#     - Pokemon program
#     - more classes/objects