What is a correct way to break long lines in Python according to PEP-8?

What is a correct way to break long lines in Python according to PEP-8?

• A. Using commas only
• B. Using backslashes and parentheses
• C. Breaking lines wherever necessary without any rules
• D. Using semicolons

Answer: (B)

The correct way to break long lines in Python according to PEP-8 is by utilizing backslashes and parentheses. PEP-8, which is the style guide for Python code, provides recommendations for improving the readability of Python code, including line length guidelines. When you use parentheses, you allow Python to understand that the expression continues on the next line without the need for a line continuation character. This is commonly done in cases such as function calls, where listing multiple arguments on separate lines can enhance readability. The use of backslashes as an explicit line continuation is also valid; however, it’s generally preferred to use parentheses because they can reduce the risk of errors that might arise from forgetting to escape a newline correctly. Using commas alone would not necessarily denote that a line is continuing and could lead to confusion in certain contexts, while breaking lines without following PEP-8 guidelines can compromise the clarity and maintainability of the code. Semicolons are not used for line continuation in Python, as they serve a different purpose by allowing multiple statements to be written on a single line.

The correct way to break long lines in Python according to PEP-8 is by utilizing backslashes and parentheses. PEP-8, which is the style guide for Python code, provides recommendations for improving the readability of Python code, including line length guidelines.

When you use parentheses, you allow Python to understand that the expression continues on the next line without the need for a line continuation character. This is commonly done in cases such as function calls, where listing multiple arguments on separate lines can enhance readability. The use of backslashes as an explicit line continuation is also valid; however, it’s generally preferred to use parentheses because they can reduce the risk of errors that might arise from forgetting to escape a newline correctly.

Using commas alone would not necessarily denote that a line is continuing and could lead to confusion in certain contexts, while breaking lines without following PEP-8 guidelines can compromise the clarity and maintainability of the code. Semicolons are not used for line continuation in Python, as they serve a different purpose by allowing multiple statements to be written on a single line.