Cornerstone Python Review

Basic Python

100

THIS command can be used to get information from the user

input()

200

THIS variable type, named after an English mathematician, is used to express True or False

Boolean variables

300

x = 5

y = 9

x = x + y

x = 8

THIS is the value of x

8

400

THIS command inserts represents a new line in a string or print statement

\n

500

THIS command forces the computer to exit the loop or branching structure at that point

break

Branching & Random

100

randint(1, 10) generates random integers between one and THIS

10

200

var = True or False;

THIS is the value of var

TRUE

300

SURPRISE PICO!

THIS line of code sets up a component at GP15 as an input

Pin(15, Pin.IN)

400

THIS operator is used to check if two values are NOT equal

!=

500

x = False

y = False

if x and y:

    print('Option 1')

elif x or y:

    print('Option 2')

else:

    print('Option 3')

THIS prints on the screen

Option 3

Looping, Lists & Strings

100

fruits = ['banana', 'apple', 'grape']

THIS is fruits[2]

grape

200

Use THIS loop to repeat code a specific number of times (often used with lists or strings)

for loop

300

Use THIS loop to check a condition before repeating code

while loop

400

Fill in THIS to print each letter in the string 'phrase'

phrase = "Hello"

for x in phrase:

 print(THIS)

x or f"{x}"

500

for x in range(5):

    print(f"{x}")

The code prints THIS

0

1

2

3

4

Functions & Files

100

THIS keyword begins a function definition

def

200

THIS is one benefit of using functions

Shorter development time

Simpler iteration and testing of sub-components of code

Less duplication of code

Programming solutions that are easier to maintain

300

THIS mode is used to open a file and at text from the beginning

'w' or write

400

THIS is the keyword used to send information back from a function to the main code

return

500

def mystery(filename):

    with (filename, 'r') open as file:

        content = file.readlines()

        data = []

        for line in content:

            data.append(int(line))

    return data

the function does THIS

takes a file name as a parameter, opens and reads all information from the file to a list, converts each item in the list to an integer, and returns the list of integers