如何设计一个接受Python函数或代码的命令行界面(CLI)？

import argparse

parser = argparse.ArgumentParser(description='Description of your program')

parser.add_argument('function', type=str, help='Name of the function to execute')
parser.add_argument('-c', '--code', type=str, help='Python code to execute')

args = parser.parse_args()

if args.function:
    # 执行指定的函数
    result = eval(args.function)  # 注意：eval函数潜在的安全风险，应谨慎使用
elif args.code:
    # 执行指定的Python代码
    exec(args.code)

import argparse

def hello():
    print('Hello, world!')

def square(x):
    return x**2

parser = argparse.ArgumentParser(description='Description of your program')
parser.add_argument('function', type=str, help='Name of the function to execute')
parser.add_argument('-c', '--code', type=str, help='Python code to execute')
args = parser.parse_args()

if args.function:
    result = eval(args.function)
    print(result)
elif args.code:
    exec(args.code)

python cli.py hello
python cli.py square -c "print(square(5))"