Math
	Normal with normal order of operation
	5//2 -- integer division yield 2 not 2.5
	5**2 -- power yields 25
	5^2 -- it's four, because binary math.  You don't want this!
	x++ -- There is no ++, but there is x+=1
	srt, sin, log all exist

Data Structures
	List
		Ordered, duplicates allowed
		http://euclid.nmu.edu/~rappleto/Classes/CS295.Python/list_quiz_answers.py
		Make a list
			l = []
			l = [1,2,3]
		Lists in lists
			l = [1,2,[3,4,5]]
			print(l[2][1])
		Length of a list
			len(l)
		Slices
			l[0:2] -- Items 0 and 1 but not 2
			l[3:] -- Items from 3 to the end
			l[:3] -- Items 0,1,and 2
			l[-4] -- Forth item FROM THE END
			l[-4:-2] -- Some items near the end

		Item existance
			if "fred" in words:
		Appending
			l.append("apple")
			l.append(["pear", "orange"]) -- adds ONE item to the list.  Did you mean l.extend(["orange", "pear"])?
		Removing from a list
			l.remove("pear")
			l.pop() -- remove the last item
			del l[2]
		Sorting a list
			l.sort()
		Sorting a list with multiple items
			Sorts on first element, ties broken by second
		Reversing a list
			l.reverse()
		My favorite
			l.shuffle()

	Array
		Use a list
	Tuple
		Like a read only list, slightly faster
		So no add, remove, shuffle, 
		t = (1,2,3,4)
	Dictionary
		Like a list with strings as indexes
		Order is weird
		d = {"Randy":52, "Scott":41}
		For loops
			for value in d:
			for key, value in d.items():
		if "thing" in d:
		Know how to sort a dict
		Know how to count things using a dict 
	String
		s = "Dead Parrot"
		works almost like a list with for loops, slices, etc.
	F-strings
		print(f"{name} is {age*12} months old.")

	

Control Structures
	And is spelled either "and" or "&&"
	Or is spelled either "or" or "||"

	For loop
		for num in range(4):  -- does 0,1,2,3
		for num in range(2,5): -- does 2,3,4
		for num in range(len(l)): -- sometimes what you want
		for item in l -- other times what you want
		for key, value in d.items(): -- iterate thru a dictionary

	While loop
		while x < 3:
	If statement
		if b > a:
		  print("b is greater than a")
		elif a == b:
		  print("a and b are equal")
		else:
		  print("a is greater than b")
		Be careful with ifs .. they can be tricky

Modules
	Packages of features, like read_csv or graphics.py
	Can be installed via PyCharm menus
	The Python installer program
	Uses a library of modules stored "in the cloud"
	pip3 install thing -- on the command line

Python functions
	def fred(x):
		return x+4
	y = fred(17)
	# with a default value
	def wilma(x = 3):
		return x + 4
	z0 = wilma()
	z1 = wilma(2)

Regex
	Be able to to basic regex's.
	l = re.findall("\d+", text)
	l = text.split(",")
	if re.search("\d", text):
	http://www.regex101.com
	Special chars are * + ? . [ ] \d ( )
	Nothing super hard
	
Graphics.py
	Draw Stuff http://euclid.nmu.edu/~rappleto/Classes/CS202/Graphics/starter.py
	(not 2024) Manipulate images at http://euclid.nmu.edu/~rappleto/Classes/CS202/picture-manipulation.py
	Animation is a loop keeping track of velocity
	Gravity and Thrust are a force, not a movement

Files
	f = open("fred.txt", "r")
	f = open("fred.txt", "w")
	for line in f:
	text = f.read()

Timing Stuff
	start = time.time()
	...
	end = time.time()
	duration = end - start

Exceptions
	try:
		...
	except:
		...
	What can cause an exception?

Web Stuff:
	req = Request("http://www.111cn.net/")
	response = urlopen(req)
	text = response.read().decode("UTF-8")

------NOT IN 2024!-----


Pandas.read_csv
	Be able to real a simple csv file
	http://euclid.nmu.edu/~rappleto/Classes/CS295.Python/pandas_and_ditionaries.txt

Plotly
	Be able to draw a simple graph with title and axis names
	https://matplotlib.org/tutorials/introductory/pyplot.html
	Best fit line at http://euclid.nmu.edu/~rappleto/Classes/CS202/graph-best-fit-line-fixed.py

(Not 2022) SQL
	Know how to 
		- create a table
		create table fred(name char(50), age int)
		- insert into a table
		insert into fred values ("Scott", 41)
		- Do a simple query
		select name from fred where age > 40
		- Do a join
		select user, price * quantity from users, orders where user.item = orders.item
(Not 2022)Python classes
	https://www.w3schools.com/python/python_classes.asp
	http://euclid.nmu.edu/~rappleto/Classes/CS295.Python/numbers-with-answers.py
	Only the basics, but 
	Should remember
		__init__()
		self
	
	Set
		No duplicates
		No order (so no sort, shuffle, etc)
		Making a set
			s = {"apple", "bananna"}
			s = set((1,2,3)) -- double parenthesis!
			s = {} -- makes a dictionary not a set!!!
		Adding an item
			s.add("pear")
		Check Membership
			if "pear" in s:
		Remove from a set 
			s.remove("pear")
		Convert a list into a list without duplicates
			l = list(set(l))