2.7.1 The accepted style conventions and how these are implemented to create readable and maintainable code

Question 1

State:

2 reasons to use defined style conventions

Answer 1

• Consistent format
• Maintainability

Question 2

State:

The current style convention for Python

Answer 2

PEP8 - Python Enhancement Proposal

Question 3

State:

4 things that PEP8 provides guidelines for

Answer 3

4 of:
* Naming conventions/styles
* Use of comments
* Use of white space
* The structure of the code
* Indentation

Question 4

State:

Why it is not possible to enforce the PEP8 convention?

Answer 4

It is an open-source programming language

Question 5

Fill The Blank:

Names in python must be ……….. and …………… to be easy to understand what they represent

Naming conventions

Answer 5

Logical, Sensible

Question 6

Fill The Blank:

Irrelevant or inappropriate ………. can make it difficult to locate ………. during maintanence or ……………….

Naming conventions

Answer 6

Names, Errors, Debugging

Question 7

State:

Convention for constants

Naming conventions

Answer 7

Capital single letter, word or words with words seperated by underscores _

Question 8

State:

Convention for functions

Naming conventions

Answer 8

Lowercase word or words with words seperated by underscores _

Question 9

State:

Convention for module

Naming conventions

Answer 9

Short, lowercase word or words with words seperated by underscores _

Question 10

State:

Convention for variable

Naming conventions

Answer 10

Lowercase signle letter, word or words with no whitespace or special characters and words seperated by underscores _

Question 11

State:

Symbol used to start a comment in python

Use of comments

Answer 11

#

Question 12

Fill The Blank:

Comments make code easier to ……………… as the meaning of the code is explained

Use of comments

Answer 12

Maintain

Question 13

Fill The Blank:

Comments should not explain obvious elements of a program but explain ………… elements

Use of comments

Answer 13

Implicit

Question 14

Fill The Blank:

White space helps code look less …………….. and helps with …………….. and understandibility.

Use of white space

Answer 14

Cluttered, Readability

Question 15

Fill The Blank:

If code contains too much white space then it can be difficult to understand which ……………… of code should be read together

Use of white space

Answer 15

Elements

Question 16

State:

The PEP8 advice for use of white space when using operators, mathematical, relational or boolean

Use of white space

Answer 16

Single space each side

Question 17

Fill The Blank:

If an expression has multiple operators then PEP8 advises to use white space only on the ………… priority ……………

Use of white space

Answer 17

Lowest, Operators

Question 18

State:

2 things that the structure of code will have an impact on

The structure of code

Answer 18

• Readability
• Ease of maintanence

Question 19

State:

Max line length advised by PEP8

The structure of code

Answer 19

79 Characters - including comments (because it is easier to read text vertically)

Question 20

State:

4 examples of elements of code structure

The structure of code

Answer 20

4 of:
* White space
* Indentation
* Tabes or spaces
* Blank lines
* Line breaks