webinar-exam-review-2023-04-22

# Exam Review 2023 Apr 22

# Do those LABS
# Ch 2-14... all Labs!
# Ch 21-32 just ADDITIONAL LABS, but important practice!
# Prac Tests, Ch 33 and 34
# Use Submit Mode and get them to 100%!!!

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

# Watch your string input and output
# input...
# myInput = input().strip()
# output/print
# print() is the same print(end="\n")
# print("some stuff", end=" ") # if I ever override that \n from end...
# print()
# print("Clean new line!")

# Comp 1: Basic syntax and knowledge: operators, data types, etc
# Common Data Types
# int
# float
# bool # True, False... if x > 5
# str # " "
# list # [ ]
# dict # {key: value}
# tuple # ( )  immutable, Python sees any a,b,c as (a,b,c)... return a, b -> return (a, b)
# set #  { } no order... no index, no sorting, no slicing; all unique values
# range # range() --> range object # range(5) or range(0, 5) --> # [0, 1, 2, 3, 4]

# operators
# = # assigns
# == # equality... asking a question, evaluation, used in a condition
# +
# -
# *
# /
# % # modulo, gives us the int remainder, "how many whole things didn't fit?"
# // # floor division... the last even division
# <
# >
# <=
# >=
# += # x += 1 is the same x = x + 1
# -=
# ** # raise to a power... pow() or math.pow()
# !=
# # keywords used like operators
# in # if value in container
# not # if not value in container
# and
# or # any one True means whole condition is True... limit OR to 2 conditions

# Comp 2
# the HOW stuff... control flow structures
# IF statements... if, if/else, if/elif, if/elif/else
# LOOPS
# WHILE - an IF that repeats
# FOR -  looping over a container, or a known number of times  #... hence range()
# for ___ in _container_:
# for item in myList:
# for char in myStr:
# for key in myDict:
# for n in range(0, 12):
# for i in range(len(myList)): # enumerate()

# FUNCTIONS
# defining/writing vs calling
# a function has ONE, PARTICULAR job
# parameters are special variables... they don't work like "regular" variables
# parameters vs arguments
# return vs print()/output... vs other... do whatever the question says

# def someFunction(x, y): # don't use any parameters unless the question says to
#     return x ** y
# # print("hey")
#
# if __name__ == "__main__": # are we running from this very script I'm writing?
#     myInput = int(input())
#     myOther = int(input())
#     myNum = someFunction(myInput, myOther)
#     print(myNum)

# print(__name__) # __main__

# See "tasks" in the last section of Ch 10, 11, 13, 14 for function writing practice
# # CodingBat also has good function-based Python questions:
# # https://codingbat.com/python

# BUILT-IN FUNCTIONS
# input()
# print()
# range()
# len()
# sum()
# min()
# max()
# int()
# float()
# list()
# str()
# tuple()
# set()
# enumerate() # for i, item in enumerate(myList)
# open() # opens a file and creates a file/IO stream object
# type() # print(type(myVar).__name__)
# round() # cousins math.ceil() and math.floor() are in math module
# sorted() # returns sorted list.. compare list.sort() does not return anything
# reversed() # returns reversed list... same
# help() # help(str), help(str.isspace)
# dir() # print(dir(str))

# STRINGS
# be able to slice strings like it's second nature
# [start:stop:step]
myStr = "abcd"
revStr = myStr[::-1]
print(revStr)

# KNOW YOUR WHITESPACE
# # " "
# # many other Unicode spaces
# "\n"
# "\r"
# "\t"

# STRING METHODS
# myStr.format() # "stuff I want to put together {}".format(var)... compare to similar to f strings
# myStr.split() # return a list of smaller strings
# myStr.join() # " ".join(listOfStrings)
# myStr.strip() # lstrip(), rstrip()
# myStr.replace(subStr, newStr) # "remove"... myStr = myStr.replace(subStr, "")
# myStr.find(subStr) # return int index of where found, or -1 if not there
# myStr.count(subStr) # return int count of occurrences
# case: myStr.lower(), myStr.upper()... title(), capitalize()
# is/Boolean: myStr.isupper(), myStr.islower(), myStr.isspace(), myStr.isalpha(), myStr.isdigit(), myStr.isnumeric(), myStr.isalnum()

# LISTS
# be able to use indices
# be able to slice

# LIST METHODS
# +
# myList.append(item)
# myList.insert(i, item)
# myList.extend(anotherList)
# # -
# myList.pop(i)
# myList.remove(item) # pop() by index, remove() by value
# myList.clear()
# # other
# myList.count(item)
# myList.sort()
# myList.reverse()
# myList.copy()
# myList.index(item)

# DICT
# use the key like an index
# myDict[key] # retrieve value for that key
# myDict[key] = value # assign value to key
# myDict.keys()
# myDict.values()
# dataList = [ " Agent Scully", "Queequeg", "Fred", " Dino", "Thor ", "Frog Thor"]
# pets = {}
# # pets[key.strip()] = value.strip()
# for i in range(0, len(dataList), 2):
#     pets[dataList[i].strip()] = dataList[i+1].strip()
# print(pets)

# MODULES
# math and csv

# MATH MODULE
import math # full import
# math.factorial(x)
# math.ceil(x.yz)
# math.floor(x.yz)
# math.pow(x, y) # x**y
# math.sqrt(x)
# math.fabs(x) # abs(x)
# math.pi
# math.e

# # PARTIAL IMPORT
# from math import factorial
# from math import ceil, fabs
# factorial(x) # not math.factorial(x)
#
# # ALIAS IMPORT
# import math as m
# m.floor(x.yz) # not math.floor(x.yz)

# FILES
# READ MODE
# with open("test.txt", "r") as f:
#     contents = f.readlines() # like a list of strings of split()
# print(contents)
#
# for line in contents:
#     line = line.strip() # if I want to get rid of final \n
#     print(line)


# CSV MODULE
import csv # csv.reader()
with open("mock_data.csv", "r") as f1:
    contents = list(csv.reader(f1)) # csv.reader(f1, delimiter="\t")
print(contents[0:20])

# WRITE MODE
with open("output_data16.csv", "w") as f2:
    for row in contents:
        # email = row[3]
        if row[3].endswith(".us"):
            f2.write(",".join(row)+"\n")

# APPEND MODE
with open("output_data16.csv", "a") as f3:

    # ['3', 'Enoch', 'Keady', 'ekeady2@hud.gov', 'Male', '216.15.244.138']
    f3.write("1001, Barney, Fife, thelmasman@mayberry.us, Male, 157.108.244.162\n")