Computer Science Python Test

What is a string?

• A category of values. The types we have seen so far are integers (type int), floatingpoint numbers (type float), and strings (type str).

• A programming statement that allows a block of code to be repeated as long as a condition is true.

• A sequence of characters, which can include letters, numbers, symbols, punctuation, and spacing.

• A named value that can change

Which of the following is not a valid Python data type?

• Int

• Float

• String

• Array

What program do you run to enter the Python editor?

• Windows

• Python

• Idle

• Interactive Mode

The following codes all have one error.  In your answer describe the problem and how to fix it.  (5 PTS each)

The >>> symbol in Python is known as the _______.

• Prompt

• Cursor

• Whack

• Float

Within Python, there are two different modes.  Which mode is instant and runs a line of code the second the user presses 'enter'?

• Editor

• Shell

• Loop

• Interactive mode

#NiceSquareSpiral.pyimport turtle   colors=['red', 'purple', 'blue',        'green', 'yellow', 'orange']t=turtle.pen()t.speed(0)turtle.bgcolor('black')for x in range(360):    t.pencolor(colors[x%4])    t.width(x/100+1)    t.forward(x)            t.left(88)

What file extension do all files created in Python end in?  (Example: an audio file might end in a FLAC or MP3 file extension)

• EXE

• BAT

• PY

• DLL

This type of loop runs for a set length or range.

• For

• While

• If

• Nested

What is a loop?

• A part of a program that can execute repeatedly.

• A file or set of files with related variables, functions, and classes that can be reused in other programs.

• A symbol or set of symbols that represents an action or comparison and returns a result, such as +, -, *, //, , ==, and so on.

• An input variable to a function, specified in the function’s definition

While coding, programmers often make notes to themselves or other programmers.  These notes left behind by programmers are called comments.  When adding a comment, what symbol must the programmer add to tell Python to overlook this line in the code?

• #

• >>>>

• ()

• []

"Reserved words" in Python are also known as _______.  These words and reserved by Python for particular functions.  When these words are typed they change to a different color in the code.

• Shortcuts

• Index

• Variables

• Keywords

In the range 0-10, what numbers are being counted?

• 1-10

• 0-9

• 0-10

• John Cena

Import turtlet = turtle.Pen()turtle.bgcolor("black")t.speed(0)sides = 3colors = ["red", "yellow", "blue", "orange", "green", "purple"]for x in range(360):t.pencolor(colors[x%sides])t.forward(x * 3 / sides + x)t.left(360/sides + 1)t.width(x*sides/100)

What is an operator?

• A variable containing information about a single instance of a class, such as a single sprite from the Sprite class.

• A special, reserved word that means something in a particular programming language.

• An input variable to a function, specified in the function’s definition.

• A symbol or set of symbols that represents an action or comparison and returns a result, such as +, -, *, //, , ==.

SquareSpiral1.pyimport turtlet = turtle.Pen()t.speed(0)for x in range(100):    t.forward(2*x)    t.left(90)

The values the operator is applied to are called _____.

• Intergers

• Types

• Operands

• Variables

("What is your name?") is a _________.

• String

• Loop

• Operator

• Variable

Turtle is a _________ built into Python that performs drawing functions.

• Program

• Command

• Module

• Keyword

# SayOurNames.py - lets everybody print their name on the screen# Ask the user for their namename = input("What is your name? ")# Keep printing names until we want to quitwhile name != "":    # Print their name 100 times    for x in range(100):    # Print their name followed by a space, not a new line    print(name, end = " ")    print()   # After the for loop, skip down to the next line    # Ask for another name, or quit    name = input("Type another name, or just hit [ENTER] to quit: ")print("Thanks for playing!")

When giving a value to a variable it is known as a ________.

• Script

• Assignment statement

• Semantics

• Parse

What is the purpose of the eval() function?

• A set of instructions that is repeated until a condition is reached.

• A sequence of characters, which can include letters, numbers, symbols, punctuation, and spacing

• The spelling and grammar rules of a programming language.

• Figures out the value within a string

If a programmer wishes to use Turtle, what line of code should they first type to enable it?

• T = turtle

• Import turtle

• Turtle

• Turtle.Pen

In the following statement identify the variable.t = turtle.Pen

• T

• =

• Turtle.Pen

• ""

[] indicates a _____.

• Loop

• String

• Value

• List

A whole number such as 6 is seen in Python as what type?

• String

• Float

• Interger

• Operand

The number 3.5 is seen in Python as this type:

• String

• Float

• Interger

• Operand

This type of loop runs inside of another loop.

• For

• While

• Nested

• If

This loop, also known as the game loop, runs until a condition is met.

• For

• While

• Nested

• If

What is a value?

• A type that represents sequences of characters.

• One of the basic units of data, like a number or string, that a program manipulates.

• A program stored in a file (usually one that will be interpreted).

• The structure of a program.