Python Questions and Answers Latest Version Graded A+

Python Questions and Answers Latest Version Graded A+ What is the difference between a list and a set in Python? A list is ordered and allows duplicates, while a set is unordered and only contains unique elements. How do you convert a string to a float in Python? Use the `float()` function, like `float('3.14')`. What is a slice in Python? A slice is a subset of a list, string, or tuple, defined by a range of indices. How do you join a list of strings into a single string in Python? Use the `join()` method, like `''.join(my_list)`. What is the purpose of the `continue` statement in a loop? The `continue` statement skips the current iteration and moves to the next iteration of the loop. 2 How do you create a dictionary with key-value pairs in Python? Use curly braces with key-value pairs, like `{'key1': 'value1', 'key2': 'value2'}`. What is the difference between `del` and `remove()` in Python? `del` removes an item by index or deletes an entire object, while `remove()` deletes an item by its value. How do you get the current date and time in Python? Use the `()` function from the `datetime` module. What is the purpose of the `global` keyword in Python? The `global` keyword allows you to modify a variable outside the current function's scope. How do you create a set in Python? Use curly braces or the `set()` constructor, like `set([1, 2, 3])`. How do you handle multiple exceptions in Python? 3 Use multiple `except` blocks, or combine exceptions in a tuple, like `except (TypeError, ValueError)`. What is a docstring in Python? A docstring is a string literal used to document a module, class, or function, placed at the beginning of the code. What does the `zip()` function do in Python? The `zip()` function combines two or more iterables into a list of tuples. How do you reverse a string in Python? Use slicing, like `my_string[::-1]`. What is the difference between `is` and `==` in Python? `is` checks if two objects are the same in memory, while `==` checks if their values are equal. What is a generator in Python?