XPYM300307 InstructorPhilipM-1

https://onlclabs.com/python/03072024/

10E - 1E
1E - 1:45E Lunch
1:45E - 4:45E

Program
Factory  Docker / Kub / AWS Container Services / Tokenized Services
PROVIDER  IO txt csv dbconn json structural
Service web services / micro services / api / injectors
Class < blueprint define attributes and behaviors when created
 Object  < functions(itself)  methods(something else)  mycalc()
  property (var name and data type) fname lname  + join
  print(fname + ' ' + lname)
    assign value to a variable
      view print(f"{fname} {lname})

memory / processor / security

stuck?
1. define?
2. defined value or action?
3. return? 

error? didn't define something

Class attribute > property
Class behavior > def method(p1, qs="string")

mytest.py

contacts.py  property
Contact.py TitleCase ClassName

__name__ == "__main__"

__init__

python
jython java and python  -> None

break 12:05 E - 12:20E
static instance and class methods page 57

Instance Method
1. Bound to a class thru the instance "new instance of a class"
2. self as the 1st parameter(self, fname, lname) 
3. Perform operations specific to a class
4. Additional params have to be defined method(ex. fname, lname)

Class Methods
1. Bound to a class BUT they do not use a "new instance of a class"
2. cls as the 1st parameter()
3. Additional params are defined as class attribute
ex. ClassName(params1)
class Contact(fname, lname) attrs of the class
attributes indented in class
class Contact:
 fname = None

Static Methods
1. NOT bound to EITHER class or an instance
2. no 1st parameter self, cls
3. utility functions for the program "dont require access the the class"
4. decoration @staticmethod to define what type it is (one the line above0

Lunch 1:05 E - 1:50 E
https://onlclabs.com/python/03072024/
static method page 57

getters and setters page 58
encapulate data > private variable OOP
1. dont encapsulate code in Python !{ ops; }
2. private variables different than hidden variable
age = 21  public int variable
age = '21' public string variable
_age = 21 hidden int variable
get_vipStatus = True getter boolean variable / attribute
@property
def vipStatus(True)  property boolean method
property(vipStatus)


age = "21"  string
int(age)

self._age  hidden attr
property(_age) class hidden property

@property
def func():
   self._age

vipStatus = "True"
bool(vipStatus)

bool( input("What is the status: " ) )

break 3:05 E - 3:20 E
page 60-62 Parent / Child Inheritance Classes
super()

Interface with a Class
Class with a Class
!Class with an Interface
Interface EXTENDS onto Class

Inheritances
Contact.fname,lname,add,c,s,zip  Parent super
ContactDetails.phone,email,department Child super()
ContactPayroll.payrate,benefit1

class ContactDetails(Contact):
 def __init__():
   super()

class ContactPayroll(ContactDetails): 

class ContactPayroll(Contact):


Python Core install python  V.R.M <platform indep>
1<1991>,2,3
3.1 > 3.6 
3.6 > 3.8 os sys
3.9 > 3.12 <3.13>
3 YR Feature 2 Yr Security 

Python Standard Library (C) built-in modules import keyword core
<platform dependent>

Python Modules custom libs import or pip install import


Modules Framework
High Level Modules > programmer
Low Level Modules > higher skillset
OS and Python Interpreter > complex
----------- Virtualization Level
Hardware

Day 2 10 E
labs for chapter 6

break 11:30 E - 11:45 E
chapter 7 page 71 subprocess
chapter7subprocess.py
Change the chapter # to 6... woops
We will fix after break

fname, lname  object > object
fname + lname  cast() types
f'{fname} {lname}' view templates
" First: {fname} last: {lname}"
"o: {} d: {}", fname, lname
@"First: {fname} last: {lname}"

lunch 1:05 E - 1:50 E
chapter 7 
chapter7.py Pythonic
# Python 
syntax
# Pythonic
syntax

import re pythonic

control > controlling the start and stop
condition > test for continue or break
exp or operation > action

break 3:30 E - 3:45 E
regular expressions
chapter 8

pattern
match<true/false>

[a-z]   
[A-Z] 
[0-9]
[a,A,B,2]
@
.
^
[0-9]{3}


philipm@onlc.com 

philipm  ^[]
@ 
onlc
.
com    $

debug syntax programmer / developer a + b = 10  7,3
error exception programmer / developer a + b = 10  7,3
ui/ux developer > ui/ux tester front end testing $10 cart
back end testing pipeline works   $10 credit card
unit testers mocking data Asserting a + b ?  # 21  7*3