Part 9

Question 1

What is the syntax of a language?

Answer 1

The permitted structure of words/sentences in a language, or programs in a programming language.

Question 2

In what procedure does a compiler or interpreter check the syntax of a program?

Answer 2

Parsing

Question 3

What are some common syntax errors in Python?

Answer 3

Missing commas

Missing colons

Incorrect indentation

Question 4

When does the python syntax checker run, and how much of the program does it analyse at a time?

Answer 4

Before the program is run, it checks the entire program for syntax

Question 5

What is a type error and when will it be detected?

Answer 5

Using wrong type, e.g. string where should be an int

Detected at runtime

Question 6

What is a runtime error?

Answer 6

An error that occurs when the program runs, rather than when it is compiled.

Question 7

What are some examples of runtime errors in python?

Answer 7

Divison by 0

Type errors

Invalid identifiers

Invalid subscripting

Question 8

What is a logic error?

Answer 8

Incorrect logic in the code of a program. Things may appear to work normally but the programmer may have introduced an error with bad logic.

Question 9

How can logic errors be detected?

Answer 9

Thorough testing of the program