python使用信号量动态更新配置文件的操作

import signal
import ConfigParser

def get_config():
 conf = ConfigParser.ConfigParser()
 conf.read("config.cfg")
 name = conf.get("test", "name")
 print(name)
 
def update_config(signum,frame):
 print("update config")
 get_config()

def ctrl_c(signum,frame):
 print("input ctrl c")
 exit(1)

# 捕获HUP
signal.signal(signal.SIGHUP, update_config)
# 捕获ctrl+c
signal.signal(signal.SIGINT, ctrl_c)

print("test signal")
get_config()

while True:
 pass

$ cat config.cfg 
[test]
# name = "Recar"
name = "@@@"

[section]
name=value
name:value

from configparser import ConfigParser
 
 if __name__ == "__main__": 
 
#写入数据到test.ini文件
 config=ConfigParser()
 config.add_section('login')
 config.set('login','name','test')
 config.set('login','paw','test')
 
 with open("test.ini",'w+') as f :
  config.write(f)
 
 
 with open("test.ini",'r') as f_read:
  config.read_file(f_read)
  print(config.get('login','name'))
  config.read(f_read)
  #获取section
  print(config.sections())
  #获取key
  print(config.get('login','name'))
  #获取value
  print(config.get('login','paw'))
  #获取某个section下的key,value
  print(config.options('login'))
  #判断section是否存在，存在返回True,不存在返回False
  print(config.has_section('login'))
  #方法判断section下，某个键是否存在，存在返回True，不存在返回False
  print(config.has_option('login','name1'))