PEP8 Guidelines Python Clean Coding - Programming Recommendations

The video provides programming recommendations for Python, covering topics like singleton comparisons, using DEF over Lambda, proper exception handling, ensuring functions return values correctly, string handling techniques, type checking with isinstance, and avoiding direct Boolean comparisons. These guidelines aim to improve code readability, reliability, and consistency.

What is the recommended way to compare a variable to None in Python?

• Using 'compare' function

• Using '==' or '!='

• Using 'is' or 'is not'

• Using 'equals' method

Why is it preferable to use 'def' over lambda expressions in Python?

• Lambdas are slower

• Lambdas are not supported in Python 3

• Def statements are shorter

• Def statements are more readable and consistent

What should you avoid when writing exception handling code in Python?

• Using specific exception types

• Using 'try' blocks

• Using a bare 'except' statement

• Using 'finally' blocks

What is a potential issue with using a bare 'except' statement?

• It requires more lines of code

• It is not supported in Python 3

• It makes the code run slower

• It can catch unintended exceptions

What should a function return if it might not have a value to return?

• 0

• An error message

• An empty string

• None

What is the correct way to handle a function that might not return a value?

• Return an empty string

• Return 0

• Return None

• Raise an exception

Which method is recommended for checking if a string starts or ends with a specific substring?

• Using string slicing

• Using 'startswith' and 'endswith'

• Using 'find' method

• Using 'index' method

What is the advantage of using 'isinstance' over 'type' for type checking?

• 'type' is not available in Python 3

• 'type' is deprecated

• 'isinstance' is more reliable and concise

• 'isinstance' is faster

How should you check if a boolean variable is True in Python?

• Using 'if variable is True'

• Using 'if variable == True'

• Using 'if variable equals True'

• Using 'if variable'

Why should you avoid using string slicing in 'if' statements for checking substrings?

• It is less readable and more error-prone

• It is slower than other methods

• It is not supported in Python 3

• It requires more memory