John Zelle Python Chapter 2 Questions and Answers Rated A+

John Zelle Python Chapter 2 Questions and Answers Rated A+ What happens if you divide by zero in Python? It raises a `ZeroDivisionError`. What is type conversion in Python? Type conversion is the process of changing a value from one data type to another, such as from a string to an integer. What is the purpose of the `+` operator for strings in Python? The `+` operator is used to concatenate strings. What is a syntax error in Python? A syntax error occurs when the code does not follow Python's rules for writing statements. What is the result of `5 * (2 + 3)` in Python? The result is `25` because parentheses change the order of operations. 2 How do you include a quote inside a string in Python? You can include a quote by using the opposite type of quotes to enclose the string, or by escaping it with a backslash (`"He said 'hello'"` or `'It's a test'`). What is a floating-point number? A floating-point number is a number that has a decimal point, like `3.14`. What does the `-` operator do in Python? The `-` operator performs subtraction. What is the difference between `5 / 2` and `5 // 2` in Python? `5 / 2` returns `2.5` as a float, while `5 // 2` returns `2` as an integer. How do you indicate the end of a line of code in Python? In Python, the end of a line is indicated by pressing Enter, as Python uses line breaks to determine the end of statements. What does it mean for Python to be an interpreted language? 3 It means Python code is executed line by line by an interpreter, rather than being compiled into machine code first. How do you assign a value to a variable in Python? You assign a value using the `=` operator, like `x = 5`. What is an expression in Python? An expression is a combination of variables, operators, and values that evaluates to a result. What happens when you try to add a string and an integer in Python? It results in an error because Python does not allow the addition of different data types without explicit conversion. What is the difference between a statement and an expression? A statement performs an action, while an expression computes a value. What is the result of the expression `2 + 3 * 4` in Python? The result is `14` because multiplication has a higher precedence than addition. 4 What is operator precedence?