inventory = {
"notebook": 12,
"pen": 25,
"backpack": 4,
"water bottle": 8
}

product = input("Enter product name: ")
quantity = int(input("Enter quantity to add: "))

inventory[product] += quantity

print(inventory)

students = {
"Anna": [8, 7, 9],
"Ben": [6, 8, 7],
"Chris": [9, 10, 8]
}

averages = {}

for name, scores in students.items():
total = sum(scores)
average = total / len(scores)
averages[name] = average

highest = max(averages)

print("Average scores:", averages)
print("Student with the highest average:", highest)

#Not good: User can't scroll :-/
self.lb1.Disable()

def __init__(self, *args, **kwargs):  
	...
	self.lb1 = wx.ListBox(panel, style=wx.LB_MULTIPLE)
	sizer.Add(self.lb1,1, wx.ALL | wx.EXPAND ,5)
	self.lb1.Bind(wx.EVT_LEFT_DOWN, self.on_input_intercept)
	self.lb1.Bind(wx.EVT_KEY_DOWN, self.on_input_intercept)
	...
	
def on_input_intercept(self, event):
	# Do NOT call event.Skip(). The event dies here, ignoring the user's action.
	return

book = input("Words to search for? ")
conn = sqlite3.connect(MYDB)
cur = conn.cursor()

#BAD cur.execute("SELECT DISTINCT title FROM books WHERE title LIKE '?'", "%book%")
#BAD cur.execute("SELECT DISTINCT title FROM books WHERE title LIKE '%?%'", book)
cur.execute("SELECT DISTINCT title FROM books WHERE title LIKE '%%?%%'", book)
for row in cur.fetchall():
	print(row[0])

conn.close()

items = [self.lb1.GetString(i) for i in range(self.lb1.GetCount())]
for item in items:
	#do something
	#modify string in listbox

items = [self.lb1.GetString(i) for i in range(self.lb1.GetCount())]
index = 0
for item in items:
	#do stuff
	self.lb1.SetString(index, f"{item} DONE")
	index += 1

index = 0
for item in self.lb1.GetStrings():
	self.lb1.SetString(index, f"{item} DONE")
	index += 1

from bs4 import BeautifulSoup, Comment

soup = BeautifulSoup(open("input.gpx", encoding='utf-8'), features='xml')
name = soup.new_tag("name")
name.string = "blah"
doc = soup.select_one("gpx")
#How to tell BS to insert a CRLF before the new element?
#<gpx><name>blah</name>
doc.insert(0,name)

from bs4 import BeautifulSoup
from bs4.builder import LXMLTreeBuilderForXML

#To prevent CRLF for <name>
#https://michaelcurrin.github.io/dev-cheatsheets/cheatsheets/python/libraries/beautifulsoup.html
builder = LXMLTreeBuilderForXML(preserve_whitespace_tags=["name"])

soup = BeautifulSoup(open("blah.gpx", encoding='utf-8'), builder=builder,features='xml')

print(soup.prettify())

import cv2

img = cv2.imread('peppers2.png', 0)
x = 0
y = 0
img[x,y] = 0
#print(img.shape[0])
for y in range(0, img.shape[0], 1): 
    for x in range(0, img.shape[0], 1): 
        if img[x,y] >= 127:
            print("white")
            img[x,y] = 255
        else:
            print("black")
            img[x,y] = 0
        print(x,",", y)
        x + 1
        if x in [img.shape[0]-1]:
#            print("TRUE")
            x = 0
            y + 1

import csv

data = csv.reader(file := open("input.txt", "r"))
for row_out in data:
	row_out.append("blah")

#not updated!
file.seek(0)
for row in data:
	print(row)