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question:Create a Python function that takes a string argument and returns a boolean value. If the string is `'true'` (case-insensitive), return `True`. If the string is `'false'` (case-insensitive), return `False`. Return `None` if the string is not `'true'` or `'false'`. Use error handling to raise an `Exception` if any other string is passed as an argument.
answer:You can create a Python function that takes a string argument and use the `if` and `elif` statements to check if it is `'true'` or `'false'` (case-insensitive). If the string is not `'true'` or `'false'`, the function can return `None`. For error handling, you can use the `try` and `except` blocks to raise an `Exception` if any other string is passed as an argument. Here's how you could do it: ```python def get_boolean_value(string): if string.lower() == 'true': return True elif string.lower() == 'false': return False else: return None def get_boolean_value_with_error_handling(string): try: if string.lower() == 'true': return True elif string.lower() == 'false': return False else: raise Exception('Invalid string, expecting true or false.') except Exception as e: print(f'Error: {e}') ``` The first function `get_boolean_value` takes a string argument and uses the `if` and `elif` statements to check if it is `'true'` or `'false'` (case-insensitive). If the string is not `'true'` or `'false'`, the function returns `None`. The second function `get_boolean_value_with_error_handling` also takes a string argument but uses `try` and `except` blocks to raise an `Exception` if any other string is passed as an argument. The `try` block checks if the string is `'true'` or `'false'` (case-insensitive). If the string is not `'true'` or `'false'`, the `except` block raises an `Exception` with a custom message. The `except` block also handles the raised `Exception` and prints an error message.
question:Replace complicated terms with easier synonyms in this technical report on computer programming: Object-oriented programming is a software development technique that focuses on encapsulation and inheritance. Encapsulation involves bundling data and actions into a single object, while inheritance allows new objects to inherit data and actions from existing objects.
answer:OOP is a technique used to make software. It's all about putting data and actions together and letting new things take over older things' data and actions.
question:Given the sets M={x|x^2=x} and N={x|xleqslant 1}, determine the relationship between the sets. A: M subseteq N B: N subseteq M C: M cup N = mathbb{R} D: M cap N = varnothing
answer:First, find the set M by solving the equation x^2 = x. This equation can be rewritten as x^2 - x = 0 or x(x - 1) = 0. The solutions to this equation are x = 0 and x = 1. Therefore, the set M = {0, 1}. Next, observe the set N = {x|x leqslant 1}. This set includes all real numbers less than or equal to 1. Now, compare the elements in set M and set N. Since both elements in set M (0 and 1) are also in set N, we can conclude that set M is a subset of set N. Therefore, the correct answer is: boxed{A: M subseteq N}
question:Write a Python function that takes a string and returns the first valid Discord ID found in that string. A valid Discord ID is a 18-digit number beginning with `1109675924956242945`, followed by a dash (-) and then 4 additional digits. Your code should pass the following test case: ```python # Test that the function returns a valid Discord ID assert find_discord_id(My Discord ID is 1109675924956242945-1234) == 1109675924956242945-1234 # Test that the function returns an empty string if no Discord ID is found assert find_discord_id(My Discord ID is invalid) == ```
answer:Here's an example implementation of the Python function using regular expressions: ```python import re def find_discord_id(text: str) -> str: pattern = r1109675924956242945-d{4} match = re.search(pattern, text) if match: return match.group(0) else: return ```