Automation

Question 1

What is an expression? Give an example?

Answer 1

The most basic kind of programming instruction; concisting of values and operators and they can always evaluate (i.e. reduce) to a single value.

e. g. 2 + 2
note: a single value is also an expression.

Question 2

What does it mean when you program crashes?

Answer 2

It means the program stopped running unexpectedly; usually because the computer can’t understand a line of code.

Question 3

List, in order of highest to lowest precedence.

Answer 3

Question 4

What can be done to override Python’s natural operation precedence.

Answer 4

Use brackets.

Question 5

List three most-common data types in Python.

Answer 5

Question 6

What does the below error usually mean?

SyntaxError: EOL while scanning string literal

Answer 6

you probably forgot the final single quote character at the end of the string.

e.g.

‘Hello, world!

Question 7

What are the rules for variable naming in Python?

Answer 7

It can be only one word with no spaces.

It can use only letters, numbers, and the underscore (_) character.

It can’t begin with a number.

Question 8

How are comments made in Python?

Answer 8

put a # before the comment.

Question 9

What do the str(), int(), and float() functions do?

Answer 9

The str(), int(), and float() functions will evaluate to the string, integer, and floating-point forms of the value you pass, respectively.

Question 10

What data type is returned by the input() function?

Answer 10

string