python获取特定参数

def greet(name, age):
    print(f"Hello, {name}! You are {age} years old.")

greet("Alice", 30)

import argparse

parser = argparse.ArgumentParser(description='Process some integers.')
parser.add_argument('integers', metavar='N', type=int, nargs='+',
                    help='an integer for the accumulator')
parser.add_argument('--sum', dest='accumulate', action='store_const',
                    const=sum, default=max,
                    help='sum the integers (default: find the max)')

args = parser.parse_args()
print(args.accumulate(args.integers))

import os

api_key = os.getenv('API_KEY')
print(api_key)

import configparser

config = configparser.ConfigParser()
config.read('example.ini')

db_host = config['database']['host']
db_port = config['database']['port']
print(db_host, db_port)

def greet(name="Guest", age=None):
    print(f"Hello, {name}! You are {age} years old.")

greet()

parser.add_argument('--name', type=str, required=True, help='Your name')

api_key = os.getenv('API_KEY', 'default_key')
print(api_key)

config = configparser.ConfigParser()
config.read('example.ini')
if 'database' in config:
    db_host = config['database']['host']
    db_port = config['database']['port']
else:
    print("Database configuration not found.")