Ellzio's Blog

记录遇到的关于和python相关的问题

1. python print array时array中间是省略号没有输出全部的解决方法
   在开头加入

   import numpy as np
   np.set_printoptions(threshold=np.inf)
   

2. python--- JsonPath从多层嵌套Json中解析所需要的值

   dic =   {
           "error_code": 0,
           "stu_info": [
                   {
                           "id": 2057,
                           "name": "xiaohei",
                           "sex": "nan",
                           "age": 29,
                           "addr": "beijing",
                           "grade": "tianxie",
                           "phone": "18712321234",
                           "gold": 100
                   }
           ]
   }
   import jsonpath
   s = jsonpath.jsonpath(dic,'$..name')   #不管有多少层，写两个.都能取到
   print(s) #['xiaohei'] 返回的是一个列表
   s = jsonpath.jsonpath(dic,'$..hehe')   #当不存在hehe这个key时，返回false
   print(s)  #False
   

   From: https://www.cnblogs.com/HathawayLee/p/10024560.html

3. 错误ValueError: Object arrays cannot be loaded when allow_pickle=False
   解决方法：将numpy回到旧版本1.16.1或1.16.2版本即可

   conda install numpy=1.16.2
   

   or

   pip install numpy=1.16.2
   

   From: https://blog.csdn.net/weixin_42096901/article/details/89855804