Python3自定义json逐层解析器代码

# -*- coding: utf-8 -*-
import operator as op
from collections import defaultdict

class Json(object):

  def __init__(self, json: str):
    sth = eval(json)
    load = lambda sth: sth if op.eq(type(sth).__name__, dict.__name__) else None
    self.json_dict = load(sth)
    self.ret_j = defaultdict(dict)
    self.analyze(self.json_dict)

  def analyze(self, j_dict: dict, lvl=0) -> None:
    lvl += 1
    for k in j_dict:
      v = j_dict[k]
      v_type = type(v)
      try:
        self.ret_j[lvl][str(j_dict)].append(f"{k}:{v}")
      except:
        self.ret_j[lvl][str(j_dict)] = []
        self.ret_j[lvl][str(j_dict)].append(f"{k}:{v}")
      if op.eq(v_type.__name__, dict.__name__):
        self.analyze(v, lvl)
      elif op.eq(v_type.__name__, list.__name__):
        for each in v:
          if op.eq(type(each).__name__, dict.__name__):
            self.analyze(each, lvl)

  def get_analysis(self) -> None:
    print(f"这个json拢共分{len(self.ret_j)}层")
    print("------")
    for lvl in self.ret_j:
      print(f"第{lvl}层解析")
      for root in self.ret_j[lvl]:
        print(f"解析内容：{root}")
        for each in self.ret_j[lvl][root]:
          print(each)
      print("------")

if __name__ == '__main__':
  try:
    import requests
  except:
    exit(0)
  url = "http://forecast.weather.com.cn/napi/h5map/city/101/jQuery1533133004035"
  r = requests.get(url)
  d_r = r.content.decode()
  json_4_test = d_r[d_r.index("(") + 1:d_r.index(")")]
  Json(json_4_test).get_analysis()

import logging.config
from logging import LogRecord

# 通常用于Linux系统下，使控制台输出的日志带颜色
class ColorFormatter(logging.Formatter):
  log_colors = {
    'CRITICAL': '\033[0;31m',
    'ERROR': '\033[0;33m',
    'WARNING': '\033[0;35m',
    'INFO': '\033[0;32m',
    'DEBUG': '\033[0;00m',
  }

  def format(self, record: LogRecord) -> str:
    s = super().format(record)

    level_name = record.levelname
    if level_name in self.log_colors:
      return self.log_colors[level_name] + s + '\033[0m'
    return s

class MyFilter400(logging.Filter):
  def filter(self, record: LogRecord):
    if record.msg.startswith("4"):
      return True
    return False

class MyFilter300(logging.Filter):
  def filter(self, record: LogRecord):
    if record.msg.startswith("3"):
      return True
    return False

LOG_LEVEL = logging.INFO

LOGGER = {
  'version': 1,
  'disable_existing_loggers': True,
  'formatters': {
    'color': {
      'class': '__main__.ColorFormatter', # 如果你的模块不是写在启动程序中，请将__main__更换成你模块的路径,下同
      'format': '%(asctime)s [%(name)s] %(levelname)s: %(message)s'
    },
    'default': {
      'class': 'logging.Formatter',
      'format': '%(message)s'
    }
  },
  'filters': {
    'filter_400': {
      '()': '__main__.MyFilter400'
    },
    'filter_300': {
      '()': '__main__.MyFilter300'
    }
  },
  'handlers': {
    'console': {
      'level': LOG_LEVEL,
      'class': 'logging.StreamHandler',
      'formatter': 'color',
    },
    'file1': {
      'level': LOG_LEVEL,
      'class': 'logging.FileHandler',
      'mode': 'w',
      'formatter': 'default',
      'filename': '400_log.txt',
      'encoding': 'utf-8',
      'filters': ['filter_400']
    },
    'file2': {
      'level': LOG_LEVEL,
      'class': 'logging.FileHandler',
      'mode': 'w',
      'formatter': 'default',
      'filename': '300_log.txt',
      'encoding': 'utf-8',
      'filters': ['filter_300']
    },
  },
  'loggers': {
    '__main__': {
      'handlers': ['file1', 'file2', 'console'],
      'level': LOG_LEVEL,
    },
  }
}

logging.config.dictConfig(LOGGER)

logger = logging.getLogger(__name__)

logger.debug('200,this is a logger debug message')
logger.info('302,this is a logger info message')
logger.warning('301,this is a logger warning message')
logger.error('404,this is a logger error message')
logger.critical('500,this is a logger critical message')

print("%s" % __name__)

class MyFilter400And500(logging.Filter):
  def filter(self, record: LogRecord):
    if record.msg.startswith("4") or record.msg.startswith("5"):
      return True
    return False

# record.msg = "404, %s, %s" 
logger.info(f"{status_code}, %s, %s", website, link)

# record.msg = "%s, %s, %s"，这就导致过滤器返回False
logger.info("%s, %s, %s", status_code, website, link)