Interactive Python: Simple Python Data

Front 1

____ is what we manipulate in Python, like a word or a number. It can be interchanged with ____.

Back 1

Value/Object

Front 2

How do you find out which class an object is?

Back 2

print(type(object))

Front 3

What's the class of a number with a decimal point?

Back 3

float

Front 4

changing a string to an integer, etc, is called

Back 4

type conversion

Front 5

names we assign to objects are

Back 5

variables

Front 6

what's the general format of an assignment statement

Back 6

variable name = value

Front 7

What is this called: =

Back 7

assignment operator/assignmnet token

Front 8

In Python, variable names have to begin with either of two types of chracters:

Back 8

underscore _ or a letter

Front 9

How do you state this:

n = 17

Back 9

"n is assigned 17"

Front 10

Whenever you write a reference diagram or state snapshot or assign a variable, the ____space is on the left and the ___space is on the right.

Back 10

namespace, valuespace

Front 11

What is a keyword?

Back 11

A name that is already assigned to a value in python, so you can't use it as your own variable name

Front 12

What is a statement?

Back 12

an instruction the Python interpreter can exucute, such as the assignment statement or an if statement

Front 13

what's an expression

Back 13

combination of values, operators, variables, and calls to function. an epression needs to be evaluated. example 1 + 1 or len("string")

Front 14

what is a function? give examples

Back 14

examples are print, type, len

Front 15

what's an operator?

Back 15

tokens that represent computations such as addition (+)

Front 16

what is integer division? write a statement using integer division

Back 16

it truncates the result down to an integer. 5 // 4

Front 17

What does the modulus operator do?

Back 17

It divides the first number by the second and returns the remainder ex. 5 % 4 returns 1

Front 18

x % 10 returns the ____ of x

ex 125 % 10 returns what?

Back 18

rightmost digit

12

Front 19

x % 100 returns the _____ of x

ex 125 % 10 returns what?

Back 19

rightmost two digits

25

Front 20

5 // 4 returns what?

Back 20

1

Front 21

5 / 4 returns what?

Back 21

1.25

Front 22

How do you ask a user for input? write a statement asking the user to enter her name.

Back 22

n = input("Enter your name.")

Front 23

How do you evaluate this: (2**3**2)

Back 23

3**2 first (right-most first)

Front 24

show this in a reference diagram:

bruce = 5
bruce = 7

What is this called?

Back 24

reassignment

Front 25

x = 5

y = x

x = 7

What is the value of y?

Back 25

5. y gets assigned the value of x, not x itself. So the value of y doesn't change when x gets reassigned. x = 7 and y = 5.

Front 26

What is an update? give an example

Back 26

A type of reassignment where the new value of the variable depends on the old. example x = x + 1

Front 27

When evaluating a statement, Python evaluates which side first?

Back 27

the right side

Front 28

For this update statement

x = x + 1

since Python evaluates the right side of the statement first, you will get an error if you don't do what first? what is the error you will get?

Back 28

You need to initialize the variable first (assign it a starting value) for ex:

x = 0

NameError: Name 'x' is not defined

Front 29

updating a variable by adding 1 (ex x = x + 1) is called _____

updating by subtracting 1 (ex x = x - 1) is called ___

Back 29

increment

decrement

Front 30

another word for incrementing a variable by 1 is

(ex x = x + 1)

Back 30

bumping