Python method example for judging Json string

This article mainly introduces you to the relevant information on using Python to determine whether a variable is a string in Json format. The article provides detailed sample code for your reference and study. Friends who need it can take a look below.

Json introduction

Full nameJavaScript Object Notation is a lightweight data exchange format. The most widely used application of Json is as a data format for communication between web servers and clients in AJAX. Nowadays, it is also commonly used in http requests, so it is natural to learn all kinds of json.

This article mainly introduces the use of Python to determine whether a variable is a string in Json format. It has certain reference value for everyone's daily learning work. I won't say much below, let's look at the code directly.

The sample code is as follows

# -*- coding=utf-8 -*-
import json

def check_json_format(raw_msg):
 """
 用于判断一个字符串是否符合Json格式
 :param self:
 :return:
 """
 if isinstance(raw_msg, str):  # 首先判断变量是否为字符串
  try:
   json.loads(raw_msg, encoding='utf-8')
  except ValueError:
   return False
  return True
 else:
  return False

if name == "main":
 print check_json_format("""{"a":1}""")
 print check_json_format("""{'a':1}""")
 print check_json_format({'a': 1})
 print check_json_format(100)

First determine whether the variable is a string, otherwise if the input is int or this other type, an error will occur.

The output of the above program is:

True
False
False
False

Summary

【Related recommendations】

1. Python Free Video Tutorial

2. Python Learning Manual

3. Python object-oriented video tutorial

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