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question:Can you help me with a Python code snippet that converts a list of strings to a dictionary where each string is a key and its length is the value? For example, if I have a list like `["apple", "banana", "cherry"]`, I want to get a dictionary like `{"apple": 5, "banana": 6, "cherry": 6}`.
answer:def list_to_dict_with_length(lst): Converts a list of strings to a dictionary where each string is a key and its length is the value. Args: lst (list): A list of strings Returns: dict: A dictionary with strings as keys and their lengths as values return {s: len(s) for s in lst}
question:Write a program that takes a list of integers and returns a new list containing only the odd numbers from the original list, in the same order they appeared.
answer:def filter_odd_numbers(numbers): Returns a list containing only the odd numbers from the original list. :param numbers: List of integers. :return: A new list with only the odd integers. return [num for num in numbers if num % 2 != 0]
question:Write a Python script that reads a list of integers from a file, where each integer is on a new line, and prints out the sum of all the integers. Assume the file is named `numbers.txt`.
answer:def sum_integers_from_file(file_path): Reads a list of integers from a file and returns their sum. Each integer is assumed to be on a new line in the file. total_sum = 0 with open(file_path, 'r') as file: for line in file: total_sum += int(line.strip()) return total_sum
question:Write a Python function that checks if a given string is a palindrome, but ignore case sensitivity and non-alphanumeric characters. A palindrome is a word, phrase, or sequence that reads the same backward as forward, e.g., "Madam, I'm Adam". Your function should return `True` if the input string is a palindrome under these conditions, and `False` otherwise. Include a simple test function to validate your solution with a few examples.
answer:import re def is_palindrome(s): Check if the given string is a palindrome, ignoring case and non-alphanumeric characters. Args: s (str): The input string to check. Returns: bool: True if the string is a palindrome, False otherwise. # Use regular expression to remove non-alphanumeric characters and convert to lowercase cleaned = re.sub(r'[^A-Za-z0-9]', '', s).lower() # Check if the cleaned string is equal to its reverse return cleaned == cleaned[::-1]