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Questions and Answers
A comma should be placed before the opening parenthesis of a function call.
A comma should be placed before the opening parenthesis of a function call.
False
The preferred way to check if a list is empty is to use the len() function.
The preferred way to check if a list is empty is to use the len() function.
False
PEP 8 suggests that whitespace within a function call should be used for readability.
PEP 8 suggests that whitespace within a function call should be used for readability.
False
In the example: my_list = [1, 2, 3], there should be no whitespaces between the square brackets and the elements.
In the example: my_list = [1, 2, 3], there should be no whitespaces between the square brackets and the elements.
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One of the suggested best practices in PEP 8 is to intentionally align assignment operators for readability, especially when working with long variable names.
One of the suggested best practices in PEP 8 is to intentionally align assignment operators for readability, especially when working with long variable names.
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According to PEP 8 it is better to directly evaluate a variable as an 'if' statement's conditional, rather than comparing it to 'True'.
According to PEP 8 it is better to directly evaluate a variable as an 'if' statement's conditional, rather than comparing it to 'True'.
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PEP 8 recommends using the is not operator, instead of not ... is, to check if something is None.
PEP 8 recommends using the is not operator, instead of not ... is, to check if something is None.
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The PEP 8 standard recommends using whitespace before a comma to create a visually balanced code block.
The PEP 8 standard recommends using whitespace before a comma to create a visually balanced code block.
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A variable that holds a person's age should be named using a single letter, such as 'a'.
A variable that holds a person's age should be named using a single letter, such as 'a'.
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It is recommended to use two line breaks before top-level functions and classes in Python code.
It is recommended to use two line breaks before top-level functions and classes in Python code.
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The function find_sum() adheres to the recommended naming convention for functions in Python.
The function find_sum() adheres to the recommended naming convention for functions in Python.
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Classes in Python are recommended to be named using a single word in lowercase.
Classes in Python are recommended to be named using a single word in lowercase.
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Using variables like 'x' and 'y' is generally discouraged in Python unless they are used as arguments in mathematical functions.
Using variables like 'x' and 'y' is generally discouraged in Python unless they are used as arguments in mathematical functions.
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A package named userutils adheres to the naming convention for packages in Python.
A package named userutils adheres to the naming convention for packages in Python.
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The constant PI complies with the recommended naming convention for constants in Python.
The constant PI complies with the recommended naming convention for constants in Python.
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Choosing descriptive names for variables, functions, classes, and other objects in Python improves code readability and maintains clarity.
Choosing descriptive names for variables, functions, classes, and other objects in Python improves code readability and maintains clarity.
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PEP 8 was written by Guido van Rossum, Barry Warsaw, and Nick Luther.
PEP 8 was written by Guido van Rossum, Barry Warsaw, and Nick Luther.
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The primary focus of PEP 8 is to enhance the performance of Python code.
The primary focus of PEP 8 is to enhance the performance of Python code.
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PEP 8 provides guidelines solely for the Python standard library.
PEP 8 provides guidelines solely for the Python standard library.
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A clear, readable code is considered a sign of professionalism in programming.
A clear, readable code is considered a sign of professionalism in programming.
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Code is written more often than it is read.
Code is written more often than it is read.
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PEP 8 suggests that only comments should be added to the code for clarity.
PEP 8 suggests that only comments should be added to the code for clarity.
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Choosing meaningful names for variables, functions, and classes saves time and energy later.
Choosing meaningful names for variables, functions, and classes saves time and energy later.
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The term 'explicit is better than implicit' comes from PEP 8.
The term 'explicit is better than implicit' comes from PEP 8.
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A hanging indent is used to keep expressions vertically aligned.
A hanging indent is used to keep expressions vertically aligned.
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PEP 8 suggests using a single indentation for line continuations.
PEP 8 suggests using a single indentation for line continuations.
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When aligning an indented block, it is acceptable to use 4 spaces to align with the opening delimiter.
When aligning an indented block, it is acceptable to use 4 spaces to align with the opening delimiter.
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PEP 8 offers only one method to position closing braces in line continuations.
PEP 8 offers only one method to position closing braces in line continuations.
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Adding a comment after a condition can improve readability according to PEP 8.
Adding a comment after a condition can improve readability according to PEP 8.
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In a hanging indent, the first line of the block is indented more than the subsequent lines.
In a hanging indent, the first line of the block is indented more than the subsequent lines.
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Using double indentation on line continuation is discouraged in PEP 8 guidelines.
Using double indentation on line continuation is discouraged in PEP 8 guidelines.
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The Zen of Python suggests that if the implementation is hard to explain, then it's a good idea.
The Zen of Python suggests that if the implementation is hard to explain, then it's a good idea.
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PEP 8 recommends using 4 tabs for indentation in Python code.
PEP 8 recommends using 4 tabs for indentation in Python code.
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Using white spaces inside a function to separate logical steps improves code readability.
Using white spaces inside a function to separate logical steps improves code readability.
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Python can assume line continuation if the code is wrapped inside parentheses.
Python can assume line continuation if the code is wrapped inside parentheses.
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A line break should occur after the mathematical operator in Python code.
A line break should occur after the mathematical operator in Python code.
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Using both tabs and spaces for indentation is recommended in Python 3.
Using both tabs and spaces for indentation is recommended in Python 3.
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It is suggested that lines in Python should be limited to 79 characters for better readability.
It is suggested that lines in Python should be limited to 79 characters for better readability.
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Functions should contain multiple line breaks to indicate the end of each step.
Functions should contain multiple line breaks to indicate the end of each step.
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The Zen of Python states that there should be multiple ways to accomplish tasks in Python.
The Zen of Python states that there should be multiple ways to accomplish tasks in Python.
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Using 'if x:' is a recommended way to check if x is not None.
Using 'if x:' is a recommended way to check if x is not None.
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PEP 8 is a set of guidelines to ensure code is clean and readable.
PEP 8 is a set of guidelines to ensure code is clean and readable.
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Linting is a process that analyzes code for syntax errors and suggests improvements.
Linting is a process that analyzes code for syntax errors and suggests improvements.
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Flake8 is an autoformatter that automatically corrects code to make it PEP 8 compliant.
Flake8 is an autoformatter that automatically corrects code to make it PEP 8 compliant.
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The statement 'arg is not None' is equivalent to checking if arg is truthy.
The statement 'arg is not None' is equivalent to checking if arg is truthy.
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It is acceptable to ignore PEP 8 guidelines if they conflict with existing software.
It is acceptable to ignore PEP 8 guidelines if they conflict with existing software.
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Using linters can help save time as a developer by preventing common errors.
Using linters can help save time as a developer by preventing common errors.
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All arguments in Python functions are non-None by default.
All arguments in Python functions are non-None by default.
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Study Notes
PEP 8 Coding Standards
- PEP 8 is a document providing guidelines and best practices for writing Python code.
- It was created in 2001 by Guido van Rossum, Barry Warsaw, and Nick Coghlan.
- The main focus is to improve readability and consistency in Python code.
- It includes coding conventions for the standard Python library.
Learning Outcomes
- Students will be able to write Python code adhering to PEP 8.
- They will understand the rationale behind these guidelines.
- Students will set up their development environment for Python code writing.
- They will understand PEP 8 compliant Python code.
Why PEP 8
- Readability is crucial in Python programming, as code is read more often than written.
- Understanding code is important for debugging and future maintenance.
- Clarity is crucial for collaborative programming.
- Properly formatted code aids collaboration and readability for others reading and maintaining it.
Naming Conventions
- Functions and methods use lowercase words separated by underscores (e.g.,
find_sum()). - Variables use lowercase words separated by underscores (e.g.,
student_age). - Classes use camel case (e.g.,
UserAuthentication). - Constants use uppercase words separated by underscores (e.g.,
PI). - Modules use short, lowercase words separated by underscores (e.g.,
module1.py). - Packages use short, lowercase words without underscores (e.g.,
userutilities).
Code Layout
- Use 4 spaces for indentation (avoid tabs).
- Use a single line break between function definitions inside classes.
- Use two line breaks before top-level functions and classes.
- Use whitespace around operators (e.g.,
total_salary = basic_salary + allowances - tax).
Line Length and Breaking
- Lines should be limited to 79 characters.
- Use parentheses, brackets, or braces to allow statements to span multiple lines.
- Use backslashes for statements not fitting on one line when parentheses, brackets, or braces are not present.
- Place line breaks around mathematical operators.
Inline Comments and Documentation Strings
- Keep inline comments concise.
- Use comments to explain statements or complex code sections.
- Use triple-quoted strings ("docstrings") to document functions, classes, and modules.
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Description
This quiz focuses on PEP 8, the style guide for Python code that enhances readability and consistency. Students will learn key guidelines for writing Python code while understanding the rationale behind these standards. By adhering to PEP 8, coders can improve collaboration and maintainability in programming projects.
