如何从python脚本构建JSON? [英] How to build JSON from python script?

问题描述

我是JSON的新手，我想从python脚本生成JSON文件

I am new to JSON and I want to generate a JSON file from a python script

例如:

#take input from the user

num = int(input("Enter a number: "))

# prime numbers are greater than 1

if num > 1:

#check for factors

for i in range(2,num):
    if (num % i) == 0:
        print(num,"is not a prime number")
        print(i,"times",num//i,"is",num)
        break
else:
    print(num,"is a prime number")

# if the input number is less than or equal to 1, it is not prime

else: print(num,"is not a prime number")

对于上述python脚本，如何生成JSON文件?有任何工具或软件吗?

For the above python script, how to generate a JSON file? Is there any tool or a software?

我不想手动创建JSON文件.上面的代码只是一个例子.

I don't want to create a JSON file manually. The above code is just an example.

我有一个用于物体检测和多个输入图像的代码.在每个图像中，对象是相同的，但是对象的位置是不同的.

I have a code for object detection and multiple input images. In each image the objects are same, but the location of the objects are different.

inputImage:手推车问题

inputImage: Trolley_Problem

tramTemplate: tram1

tramTemplate: tram1

更新1:

import numpy as np
import cv2

# Read the main image

inputImage = cv2.imread("Trolley_Problem.jpg")

# Convert it to grayscale

inputImageGray = cv2.cvtColor(inputImage, cv2.COLOR_BGR2GRAY)

# Read the templates

tramTemplate = cv2.imread("tram1.jpg")

# Convert the templates to grayscale

tramTemplateGray = cv2.cvtColor(tramTemplate, cv2.COLOR_BGR2GRAY)

#Store width and height of the templates in w and h

h1,w1 = tramTemplateGray.shape

# Perform match operations.

tramResult = cv2.matchTemplate(inputImageGray,tramTemplateGray, cv2.TM_CCOEFF_NORMED)

# Specify a threshold

threshold = 0.75

# Store the coordinates of matched area in a numpy array

loc1 = np.where( tramResult >= threshold)

for pt in zip(*loc1[::-1]):
    cv2.rectangle(inputImage,pt, (pt[0] + w1, pt[1] + h1), (0,255,255), 1)
    cv2.putText(inputImage,"Tram Detected", (200,50), font, 0.5, 255)

# Show the final result

cv2.imwrite(r "Trolley_Problem_Result.jpg", inputImage)`

因此，我必须为此对象检测程序生成JSON文件.

So, I have to generate JSON file for this object detection program.

谢谢

推荐答案

Python附带了一个json库，

There is a json library that comes with python, here's the docs

import json
#take input from the user

num = int(input("Enter a number: "))

# prime numbers are greater than 1

if num > 1:

#check for factors
prime_numbers = []
not_prime = []
for i in range(2,num):
    if (num % i) == 0:
        print(num,"is not a prime number")
        print(i,"times",num//i,"is",num)
        not_prime.append(num)
        break
    else:
        prime_numbers.append(num)
        print(num,"is a prime number")


fh = open("my_json.json", "a+")
fh.write(json.dumps({"prime": prime_numbers, "not_prime": not_prime})) # added an extra ')'.. code will now work
fh.close()

json很不错:)

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