BeautifulSoup 在 instagram html 页面中查找

2022-01-20 00:00:00 python beautifulsoup web-scraping instagram find

问题描述

我正在尝试在 html instagram 页面中自动查找一些 url，并且 (知道我是 python 菜鸟)我找不到在 html 源代码中自动搜索的方法示例中 "display_url": http..." 之后的 url.

I'm trying to automatically find some urls in an html instagram page and (knowing that I'm a python noob) I can't find the way to search automatically within the html source code the urls who are in the exemple after the "display_url": http...".

我想让我的脚本搜索多个显示为display_url"的url并下载它们.它们必须在源代码中出现的次数被提取.

I want to make my script search multiples url who appears as next as "display_url" and download them. They have to be extracted as many times as they appear in the source code.

<小时>

用 bs4 我试过了:

With bs4 I tried the :

f = urllib.request.urlopen(fileURL)
htmlSource = f.read()
soup = bs(htmlSource, 'html.parser')
metaTag = soup.find_all('meta', {'property': 'og:image'})
imgURL = metaTag[0]['content']
urllib.request.urlretrieve(imgURL, 'fileName.jpg')

但我无法让 soup.find_all(... 工作/搜索它.有没有办法让我用 bs4 找到这部分页面?

But I can't make the soup.find_all(... work/search it. Is there a way for me to find this part of the page with bs4 ?

非常感谢您的帮助.

这是我现在的小 (python) 代码示例:https://repl.它/@ClementJpn287/bs

Here is an exemple of my little (python) code as it is now : https://repl.it/@ClementJpn287/bs 

<!––cropped...............-->

<body class="">

  <span id="react-root"><svg width="50" height="50" viewBox="0 0 50 50" style="position:absolute;top:50%;left:50%;margin:-25px 0 0 -25px;fill:#c7c7c7">
      <path
        d="

        <!––deleted part for privacy -->

         " />
      </svg></span>


  <script type="text/javascript">
    window._sharedData = {
      "config": {
        "csrf_token": "",
        "viewer": {
        
        <!––deleted part for privacy -->
   
        "viewerId": ""
      },
      "supports_es6": true,
      "country_code": "FR",
      "language_code": "fr",
      "locale": "fr_FR",
      "entry_data": {
        "PostPage": [{
          "graphql": {
            "shortcode_media": {
              "__typename": "GraphSidecar",
     
     <!––deleted part for privacy -->
     
              "dimensions": {
                "height": 1080,
                "width": 1080
              },
              "gating_info": null,
              "media_preview": null,

<--There's the important part that have to be extracted as many times it appear in the source code-->

              "display_url": "https://scontent-cdt1-1.cdninstagram.com/vp/",
              "display_resources": [{
                "src": "https://scontent-cdt1-1.cdninstagram.com/vp/",
                "config_width": 640,
                "config_height": 640
              }, {
                "src": "https://scontent-cdt1-1.cdninstagram.com/vp/",
                "config_width": 750,
                "config_height": 750
              }, {
                "src": "https://scontent-cdt1-1.cdninstagram.com/vp/",
                "config_width": 1080,
                "config_height": 1080
              }],
              "is_video": false,
       
<!––cropped...............-->

我的最新代码

解决方案

问题解决

这是在 iOS 上使用 Pythonista 3 从 Instagram 网址下载多个图像的代码:

Problem Solved

Here's the code to download multiples images from an instagram url with Pythonista 3 on iOS:

    from sys import argv
    import urllib
    import urllib.request
    from bs4 import BeautifulSoup 
    import re
    import photos
    import clipboard


    thepage = "your url"
#p.1
    thepage = urllib.request.urlopen(html)
    soup = BeautifulSoup(thepage, "html.parser")
    print(soup.title.text)
    txt = soup.select('script[type="text/javascript"]')[3] 
    texte = txt.get_text()
    fille = open("tet.txt", 'w')
    fille.write(texte)
    fille.close()
#p.2
    g = open('tet.txt','r')
    data=''.join(g.readlines())
    le1 = 0
    le2 = 0
    hturl = open('url.html', 'w')
    still_looking = True
    while still_looking:
        still_looking = False
        dat = data.find('play_url', le1)
        det = data.find('play_resources', le2)
        if dat >= le1:
            #urls.append(dat)
            le1 = dat + 1
            still_looking = True                
        if det >= le2:
            hturl.write(data[dat:det])
            le2 = det + 1
            still_looking = True
    hturl.close()
#p.3
    hturl2 = open('url.html', 'r')
    dete = ''.join(hturl2.readlines())
    le11 = 0
    le22 = 0
    urls = []
    still_looking2 = True
    while still_looking2:
        still_looking2 = False
        dat2 = dete.find('https://scontent-', le11)
        det2 = dete.find('","dis', le22)
        if dat2 >= le11:
            urls.append(dat2)
            le11 = dat2 + 1
            still_looking2 = True                
        if det2 >= le22:
            urls.append(dete[dat2:det2])
            le22 = det2 + 1
            still_looking2 = True   
    hturl2.close()
#p.4
    imgs = len(urls)
    nbind = imgs
    nbindr = 3 
    images = 1
    while nbindr < imgs:
        urllib.request.urlretrieve(urls[nbindr], 'photo.jpg')
        photos.create_image_asset('photo.jpg')
        print ('Image ' + str(images) + ' downloaded')
        nbindr = nbindr +2
        images += 1
    print("OK")

这有点挑剔，但它的工作速度也很快.感谢您的帮助.

It's a bit fastidious but it's working and rapidly too. Thanks for your help.

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