rybic's questions

我需要从监视器屏幕上获取图像，以便实时更新图像（然后我将搜索指定的图像（对象），我已经实现了搜索）。如何在 python 3.x 中使用哪些库来做到这一点？

搜索代码：

import cv2 
import numpy as np

img = cv2.imread("screen0.png")  #работает только с 1 картинкой
imgg = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
template = cv2.imread("stone.png", cv2.IMREAD_GRAYSCALE)
w, h = template.shape[::-1]

result = cv2.matchTemplate(imgg, template, cv2.TM_CCOEFF_NORMED)
loc = np.where(result >= 0.5)

for pt in zip(*loc[::-1]):
    cv2.rectangle(img, pt, (pt[0] + w, pt[1] + h), (0, 255, 0), 3)

cv2.imshow("img", img)

.csv 文本 import requests

 import time
 import csv

 version = 5.95
 domain = 'hearthstone'
 count = 100
 offset = 10
 all_posts = []


def gp_parse():
    token = input()
    version = 5.95
    domain = 'hearthstone'
    count = 100
    offset = 0
    all_posts = []
    a = []

    response = requests.get('https://api.vk.com/method/wall.get', params={'access_token': token,
                                                                          'v': version,
                                                                          'domain': domain,
                                                                          'count': count,
                                                                          'offset': offset})
    while offset < 1000:
        data = response.json()['response']['items']
        offset+= 100
        all_posts.extend(data)
        time.sleep(0.5)
        if len(all_posts) not in a:
            a.append(len(all_posts))
            print(len(all_posts))
        else:
            pass

    return all_posts


all_posts = gp_parse()


def file_writer(all_posts):
    p = 'pass'
    with open('group_parse.csv', 'w', encoding='utf-8') as file:
        a_pen = csv.writer(file)
        a_pen.writerow(('id владельца', 'описание поста', 'лайки', 'комментарии', 'репосты', 'просмотры'))
        for post in all_posts:
            try:
                a_pen.writerow((post['owner_id'], post['text'], post['likes']['count'], post['comments']['count'],
                                post['reposts']['count'], post['views']['count']
                                )).text

            except:
                (csv.Error)
            a_pen.writerow((p))


all_posts = gp_parse()
file_writer(all_posts)

编码：

import requests
import csv
from bs4 import BeautifulSoup as bs


headers={'accept':'*/*',
         'user-agent':'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/75.0.3770.90 Safari/537.36'
}
base_url='https://vk.com/hearthstone'


def hs_parse(base_url,headers):
    stats=[]
    urls=[]
    urls.append(base_url)
    session=requests.session()
    request=session.get(base_url,headers=headers)
    while len(stats) < 60:
        if request.status_code==200:
            soup=bs(request.content,'lxml')
        for url in urls:
            request = session.get(url, headers=headers)
            soup = bs(request.content, 'lxml')
            divs = soup.find_all('div', attrs={'class': 'like_btns'})
            for a in divs:
                com=soup.find_all('a',attrs={'class':'like_btn comment _comment _reply_wrap'})
                for div in a:
                    comentators=a.find('div',attrs={'class':'like_button_count'})
                    if comentators not in stats:
                        stats.append({'comentators':comentators})
                    else:
                        pass

            for a in divs:
                lik=soup.find_all('a',attrs={'class':'like_btn like _like'})
                for div in a:
                    likes=a.find('div',attrs={'class':'like_button_count'})
                    if likes not in stats:
                        stats.append({' likes':  likes})
                    else:
                        pass
            for a in divs:
                rep = soup.find_all('a', attrs={'class': 'like_btn share _share'})
                for div in a:
                    reposts = a.find('div', attrs={'class': 'like_button_count'})
                    if reposts not in stats:
                        stats.append({' reposts': reposts})
                    else:
                        pass
            for a in divs:
                wh = soup.find_all('a', attrs={'class': 'like_views _views'})
                for div in a:
                   watching = a.find('div', attrs={'data-count': 'title'})
                   if watching not in stats:
                       stats.append({'  watching':  watching})
                   else:
                       pass
        for url in urls:
            request = session.get(url, headers=headers)
            soup = bs(request.content, 'lxml')
            content = soup.find('div', attrs={'class': 'wall_post_text'})
            if content not in stats:
                stats.append(content)
            else:
                pass
        for url in urls:
            request = session.get(url, headers=headers)
            soup = bs(request.content, 'lxml')
            author = soup.find('div', attrs={'data-post-click-type': 'post_owner_link'})
            stats.append(author)



            print(len(stats))
        else:
            print('DONE')
            print(stats)
        return stats

def files_writer(stats):
    with open('parsed_hs_pub.csv','w',encoding='utf-8'
              ) as file:
        writer=csv.writer(file)
        writer.writerow((' author','content','likes','comentators','reposts','watching'))
        for stats in stats:
            writer.writerow((stats[' author'],stats['content'],stats['likes'],stats['comentators'],stats['reposts'],stats['watching']))

stats=hs_parse(base_url,headers)
files_writer(stats)

错误：

Traceback (most recent call last): File "C:/Users/User/Desktop/python 3/фриланс и примеры/Новый текстовый документ.py", line 88, in <module> files_writer(stats) File "C:/Users/User/Desktop/python 3/фриланс и примеры/Новый текстовый документ.py", line 85, in files_writer writer.writerow((stats[' author'],stats['content'],stats['likes'],stats['comentators'],stats['reposts'],stats['watching'])) KeyError: ' author'