Wie mache ich einen Brainfuck-Interpreter in Python?
Brainfuck is an esoteric programming language that consists of only eight commands, each represented by a single character. Here's one way to write a Brainfuck interpreter in Python:

'''python
def brainfuck(code, input_str):
    code_ptr = 0
    data_ptr = 0
    data = [0] * 30000
    input_ptr = 0
    output = ""

    while code_ptr < len(code):
        char = code[code_ptr]

        if char == ">":
            data_ptr += 1
        elif char == "<":
            data_ptr -= 1
        elif char == "+":
            data[data_ptr] += 1
        elif char == "-":
            data[data_ptr] -= 1
        elif char == ".":
            output += chr(data[data_ptr])
        elif char == ",":
            if input_ptr < len(input_str):
                data[data_ptr] = ord(input_str[input_ptr])
                input_ptr += 1
        elif char == "[" and data[data_ptr] == 0:
            loop_count = 1
            while loop_count > 0:
                code_ptr += 1
                if code[code_ptr] == "[":
                    loop_count += 1
                elif code[code_ptr] == "]":
                    loop_count -= 1
        elif char == "]" and data[data_ptr] != 0:
            loop_count = 1
            while loop_count > 0:
                code_ptr -= 1
                if code[code_ptr] == "[":
                    loop_count -= 1
                elif code[code_ptr] == "]":
                    loop_count += 1
        code_ptr += 1

    return output
'''

You can use this interpreter by calling the brainfuck function with the Brainfuck code and the input string as arguments. For example:

'''python
code = "++++++++[>++++[>++>+++>+++>+<<<<-]>+>+>->>+[<]<-]>>.>---.+++++++..+++.>>.<-.<.+++.------.--------.>>+.>++."
input_str = ""

output = brainfuck(code, input_str)
print(output)
'''

This should produce the output "Hello World!"