Ace Your Python Quiz Practice Test

Python files use the .py extension, which is the standard recognized by the interpreter and various development tools. This naming convention helps the system correctly identify Python scripts.

In Python, the '#' symbol is used to denote single-line comments. This tells the interpreter to ignore all text following the '#' on that line.

The print() function in Python sends output to the console, which is essential for displaying results and debugging. It is a basic yet vital function for any Python program.

In Python, 'def' is the keyword used to define a function. It signals the start of a function block and is followed by the function name and parameters.

Tuples are immutable in Python, meaning once they are created, their contents cannot be changed. In contrast, lists, dictionaries, and sets are mutable data types.

Using list(range(5)) converts the range object into a list containing numbers from 0 to 4. The range(5) by itself returns a range object, not a list, in Python 3.

Since x is 5 and the condition x > 3 is true, the code executes the first branch, printing 'High'. The else block is ignored in this case.

The modulus operator '%' returns the remainder of a division between two numbers. It is commonly used for operations involving divisibility and looping.

The expression 2 ** 3 raises 2 to the power of 3, which equals 8. The print() function then displays this result on the console.

Python uses the try-except block to handle exceptions, allowing programs to handle errors gracefully. This structure ensures that errors do not cause the program to crash unexpectedly.

The correct syntax for importing a module in Python is to use the import statement. 'import math' makes the functions and constants of the math module accessible in your code.

In Python, {} creates an empty dictionary by default. To create an empty set, you must use the set() function.

The floor division operator '//' divides and returns the integer part of the quotient. Thus, 10 // 3 evaluates to 3, discarding the remainder.

In Python, strings are created by enclosing text in quotes. The assignment s = 'Hello' properly initializes a string variable.

The len() function returns the total number of elements in a list, allowing you to determine its size. It is commonly used in loops and conditional expressions.

The list comprehension iterates through the 'numbers' list and processes only the even numbers (2 and 4) by squaring them. Consequently, the output is [4, 16].

A lambda function is a small anonymous function defined with the 'lambda' keyword. It is typically used for short, simple operations and is defined without a name.

The assignment 'new_list = my_list' does not create a new list; it only creates a reference to the same list. The other methods create a shallow copy, yielding an independent list object.

Slicing a list using [1:4] extracts elements starting from index 1 up to, but not including, index 4. Thus, the resulting list is [1, 2, 3].

When func(3) is called, the parameter b uses its default value of 2. The function then computes 3 multiplied by 2, resulting in an output of 6.