webinar-exam-review-v4-2023-03-16

# Exam Review 2024 Mar 16

# Do those LABS
# Ch 2-14... all Labs!
# Ch 21-32 just ADDITIONAL LABS, but important practice!
# get to know the Prac Tests, Ch 33 and 34... more than the Pre

# Use Submit Mode and get them to 100%!!!
# PAY ATTENTION to the unit tests!
# ... then UNIT TEST more! Unit test, unit test, unit test!

# When you've gotten the Ch 33-34 Prac Tests to 100, go back and do each again.
# This time, try to think of 2-3 more unit tests that could be run on each question.

# Comp 1: Basic syntax and knowledge: operators, data types, etc
# Comp 2: Control Flow
# Comp 3: Modules and Files

# Comp 1: Basic syntax and knowledge: operators, data types, etc
# Operators
# = # assignment
# == # asking a question
# +
# -
# *
# /
# % # modulo... whole number remainder... "how many whole things didn't fit since the last even division?"
# // # floor division... last even division
# <
# >
# <=
# >=
# += # x += 1 --> x = x+1
# -=
# ** # pow(), math.pow()
# !=
# # keywords
# in # membership check... if x in myList:
# not # if not x in myList:
# and
# or # any one True would cause the combo is True... limit OR to 2-3 conditions

# Data Types/Classes
# int
# float
# bool
# str # ""
# list # [ ]
# dict # {key: value}, review Ch 4.5
# tuple # ( ) immutable, Python sees x,y,z as (x,y,z) -> return a,b,c --> return (a,b,c)
# set # {x,y,z} no duplicates, no order --> no indices, can't slice it, can't sort it, can't reverse it
# range # range()... container of consecutive numbers
# file # open()... f.read(), f.readlines(), f.write()

# Comp 2
# Control Flow! The how and when of our programs
# IF statements... if, if/else, if/elif, if/elif/else
# LOOPS
# WHILE - a general purpose loop, an IF that repeats
# FOR - repeating action once for everything in a container
# FOR - repeating actions a known number of times -> once for everything in a container
# Check out my For Loops webinar in The Gotchas
# for ___ in _someContainer_:
# for item in myList:
# for char in myStr:
# for key in myDict: # value for that key in myDict[key]
# for n in range(5):
# for i in range(0, len(myList)):
# for i, item in enumerate(myList):

# FUNCTIONS
# defining/writing a function vs calling it
# modular... a function has ONE job
# output/print vs return (or maybe something)
# parameters are special variables for holding stuff coming into the function
# parameters vs arguments
#
# def someFunction(x, y):
#     return x ** y
#
# if __name__ == "__main__": # is this script the one that's running now
#     input1 = int(input())
#     input2 = int(input())
#     myNum = someFunction(input1, input2)
#     print(myNum)

# final "task" page of Ch 10, 11, 13, 14
# CodingBat also has good function-based Python questions:
# https://codingbat.com/python

# BUILT-IN FUNCTIONS
# input()
# print()
# range()
# pow()
# type() # print(type(myVar).__name__)
# list()
# str()
# int()
# float()
# len()
# sum()
# min()
# max()
# enumerate()
# open()
# round() # cousins math.ceil(), math.floor()
# abs() # math.fabs(), "magnitude"
# help()
# dir() # # print(dir(str))
# help(str) # help(str.isspace)

# STRINGS
# be able to refer to indices, and slice
# myStr = "abcdef"
# # mySlice[start:stop:step]
# revStr = myStr[::-1]
# print(revStr)

# KNOW YOUR WHITESPACE
# " " # space from spacebar
# # a lot of Unicode spaces
# "\n" # new line return
# "\t" # tab
# "\r" # carriage return

# myVar = input().strip()

# unless otherwise stated... printed output should end a new line return... 99% of the time it does anyway
# print("hey") # --> print("hey", end="\n")
# we only need to change that when...
#1 ... this specific says to do something else
#2 ... you yourself overrode the end parameter of print() as the last thing you did... just call print() after that block

# STRING METHODS
# myStr.format() # "Stuff I want to put this {} and {} together in a string".format(val1, val2)
# myStr.strip() # input().strip()
# myStr.split() # returns a list of smaller strings
# ",".join(listOfStrings)
# myStr.replace(subStr, newStr) # "remove" myStr = myStr.replace(subStr, "")
# myStr.index(subStr), myStr.find(subStr) # return index location
# myStr.count(subStr) # returns number of times it's there
# case: lower(), upper(), title(), capitalize()
# is/Boolean: isspace(), isupper(), islower(), isalpha(), isnumeric(), isdigit(), isalnum()
# myStr.startswith(subStr), endswith(subStr)

# LISTS
# be able to refer by index and to slice
# LIST METHODS
# +
# myList.append(item)
# myList.insert(i, item)
# myList.extend(anotherList)
# # -
# myList.pop(i) # last one or by index
# myList.remove(item) # pop() by index, remove() by value
# myList.clear()
# # other
# myList.sort()
# myList.reverse()
# myList.count(item) # returns int count of item
# myList.copy()
# myList.index(item)

# DICT
# use the key like an index []... then you don't really need DICT methods
# myDict[key] # get the value for that key
# myDict[key] = value # assigns new value to key
#
# # DICT METHODS
# myDict.keys() # all dict keys in a set-like object
# myDict.values() # all dict values in a set-like object

# check if key in dict
# if ___ in myDict: # checking the keys

# MODULES
# math and csv

# MATH MODULE
# import math # FULL IMPORT
# math.factorial(x)
# math.ceil(x)
# math.floor(x)
# math.sqrt(x)
# math.pow(x, y)
# math.fabs(x)
# math.pi
# math.e
#
# # PARTIAL IMPORT
# from math import ceil # just ceil(), no math.
# from math import factorial, sqrt # factorial(), sqrt()
# from math import * # floor(), sqrt()
#
# # ALIAS IMPORT
# import math as m
# m.floor(), m.ceil()

# FILES
# modes: r, w, a

# READ MODE
# filename = input()
with open("test.txt", "r") as f:
    # f.read()  # returns whole file as one big string
    # f.readline() # singular! I stay away from this one
    # f.readlines()  # returns a list of strings, line by line
    # f.write() # take one str arg and write into file (can't do here bc I'm in read mode)
    contents = f.readlines()
# print(contents)
# for line in contents:
#     line = line.strip()
#     print(line)

# CSV module
import csv # csv.reader()
with open("mock_data.csv", "r") as f1: # mockaroo.com
    # contents = f1.readlines()
    contents = list(csv.reader(f1)) # csv.reader(f1, delimiter="\t")

# print(contents)

# WRITE MODE
# with open("output_data35.csv", "w") as f2:
#     # write out a file from contents where emails are from Yahoo
#     for row in contents:
#         # email is row[3]
#         if row[3].endswith("@yahoo.com"):
#             f2.write(",".join(row) + "\n")

# APPEND MODE
# with open("append_to_this.txt", "r") as f3:
#     print(f3.readlines())
with open("append_to_this.txt", "a") as f3:
    f3.write("\nPippin")