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首页 > 解决方案 > 正则表达式几乎提取 JSON，但结果包含额外数据

python - 正则表达式几乎提取 JSON，但结果包含额外数据

问题描述

我在另一篇文章中找到了以下公式，并对其进行了稍微修改，使其非常接近数据，但现在我不确定要进行什么正则表达式调整。

以下代码将正则表达式结果（来自 html 字符串）放入result，这几乎是 JSON，但它以开头<script>\n Spotify = {};\n Spotify.Entity =和结尾;\n </script>

from bs4 import BeautifulSoup
import re

soup = BeautifulSoup("""<html>...<script>{environment: "production",
                features: {}};
</script><script>
    Spotify = {};
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Zombies","type":"artist","uri":"spotify:artist:2jgPkn6LuUazBoBk6vvjh5"}],"external_urls":{"spotify":"https:\/\/open.spotify.com\/album\/0ttvz9n7vBPaMWpRplAZbs"},"href":"https:\/\/api.spotify.com\/v1\/albums\/0ttvz9n7vBPaMWpRplAZbs","id":"0ttvz9n7vBPaMWpRplAZbs","images":[{"height":600,"url":"https:\/\/i.scdn.co\/image\/96505f6b25ba6c5d48f017cbebe9f606729f0b97","width":600},{"height":300,"url":"https:\/\/i.scdn.co\/image\/edfaccd8ad5df41b427220bc5ec856368ad5b8d7","width":300},{"height":64,"url":"https:\/\/i.scdn.co\/image\/e13571723be8407c257fa1340c74fe1ebb96dbb8","width":64}],"name":"The Original Studio Recordings (Volume One)","release_date":"2007-04-30","release_date_precision":"day","total_tracks":20,"type":"album","uri":"spotify:album:0ttvz9n7vBPaMWpRplAZbs"},"artists":[{"external_urls":{"spotify":"https:\/\/open.spotify.com\/artist\/2jgPkn6LuUazBoBk6vvjh5"},"href":"https:\/\/api.spotify.com\/v1\/artists\/2jgPkn6LuUazBoBk6vvjh5","id":"2jgPkn6LuUazBoBk6vvjh5","name":"The Zombies","type":"artist","uri":"spotify:artist:2jgPkn6LuUazBoBk6vvjh5"}],"disc_number":1,"duration_ms":126600,"explicit":false,"external_ids":{"isrc":"GBCBS6432262"},"external_urls":{"spotify":"https:\/\/open.spotify.com\/track\/5FNRngWeBEpR8BiGLlNm2l"},"href":"https:\/\/api.spotify.com\/v1\/tracks\/5FNRngWeBEpR8BiGLlNm2l","id":"5FNRngWeBEpR8BiGLlNm2l","is_local":false,"is_playable":true,"name":"Tell Her No","popularity":41,"preview_url":"https:\/\/p.scdn.co\/mp3-preview\/e87062cab3f5ba1e17b3cc01395b9b4ce9c2d996?cid=162b7dc01f3a4a2ca32ed3cec83d1e02","track_number":10,"type":"track","uri":"spotify:track:5FNRngWeBEpR8BiGLlNm2l"}],"insights":{"artist_gid":"4bed34afbb0644ee84410e0774ee0b27","autobiography":{"body":"The 2nd UK band following <a href=\"spotify:artist:3WrFJ7ztbogyGnTHbHJFl2\" data-name=\"The Beatles\">The Beatles<\/a> to score a #1 hit in the US, <a href=\"spotify:artist:2jgPkn6LuUazBoBk6vvjh5\" data-name=\"The Zombies\">The Zombies<\/a> infiltrated airwaves with the sophisticated melodies, choral back-up harmonies and jazzy keyboard riffs of their 60s singles <a href=\"spotify:track:3dzW0SoVNyJTWWJimX8stj\" data-name=\"She's Not There\">She's Not There<\/a> and <a href=\"spotify:track:5FNRngWeBEpR8BiGLlNm2l\" data-name=\"Tell Her No\">Tell Her No<\/a>. Ironically the group broke-up just prior to achieving their greatest success\u2013 the worldwide chart-topping hit <a href=\"spotify:track:5AJrhrwz4oSZX2PwwV4qrN\" data-name=\"Time Of The Season (Mono Version)\">Time Of The Season (Mono Version)<\/a> from <a href=\"spotify:album:7K6JtyaSSVr7HidQsCHun0\" data-name=\"Odessey And Oracle\">Odessey And Oracle<\/a> ranked #100 in Rolling Stone\u2019s \u2018500 Greatest Albums of All Time.\u2019 To this day generations of new bands have cited the band&#39;s work as pop touchstones.\n \nFollowing the break-up of the original band, lead vocalist <a href=\"spotify:artist:27DCwiPx5ocQsf4K43SlIL\" data-name=\"Colin Blunstone\">Colin Blunstone<\/a> went on to develop an acclaimed solo career (<a href=\"spotify:track:20mUVwCxR1x2d5SuBRGW1F\" data-name=\"Say You Don't Mind\">Say You Don't Mind<\/a>, &quot;What Becomes of the Brokenhearted and <a href=\"spotify:track:1VD1jzThUoPSljwULNxbEV\" data-name=\"Old And Wise\">Old And Wise<\/a> with <a href=\"spotify:artist:2RtIpLf0XAoJH6ZqD4i2qQ\" data-name=\"The Alan Parson Project\">The Alan Parson Project<\/a>) and keyboardist\/songwriter Rod Argent rocked arenas with his band <a href=\"spotify:artist:46VosWAvtZsBl7rvxufsWG\" data-name=\"Argent\">Argent<\/a> ( <a href=\"spotify:track:3vfIv3pvYlLOa0wKIEuqFn\" data-name=\"Hold Your Head Up\">Hold Your Head Up<\/a>,&quot; &quot;<a href=\"spotify:track:1qUSBfdnI4rNBZPUwj0rxg\" data-name=\"God Gave Rock and Roll to You\">God Gave Rock and Roll to You<\/a>&quot;) but the legend of The Zombies continued to take on a life of its own. By the start of the new Millennium Blunstone and Argent were inspired to resurrect the band.\n \nThe release of 2015&#39;s <a href=\"spotify:album:59pVA8DVGTfziL0HJ07MR9\" data-name=\"Still Got That Hunger\">Still Got That Hunger<\/a> proved that Zombies fever is stronger than ever with premieres in Rolling Stone, Mojo, The Wall Street Journal, and Spin alongside broadcast performances on Later\u2026With Jools Holland and The Late Show With Stephen Colbert. It marked a historical moment on the Billboard charts as Odessey &amp;amp; Oracle re-entered the Billboard 100 48 years later at the same time as Still Got That Hunger!\n","urls":["https:\/\/en.wikipedia.org\/wiki\/The_Zombies"],"links":{"twitter":"https:\/\/twitter.com\/TheZombiesMusic","instagram":"https:\/\/instagram.com\/thezombiesofficial","wikipedia":"https:\/\/en.wikipedia.org\/wiki\/The_Zombies","facebook":"https:\/\/facebook.com\/thezombiesmusic"}},"header_image":{"id":"114df83ef8fb43ecbd250754a7eef627","uri":"https:\/\/i.scdn.co\/image\/05102b43a3f8cbe9be1d4e53936c3778c38d0058","width":2660,"height":1140},"images":[{"id":"dc83b09e2ff94ef7886d4a9952aad873","uri":"https:\/\/i.scdn.co\/image\/c054bc1404e67e75c71864fb7eadfcf2b29041a1","width":640,"height":640},{"id":"2468bcc482334def98c2376d6da6f944","uri":"https:\/\/i.scdn.co\/image\/c250625fd3906f8e48112d2f59628074e7f6be36","width":640,"height":640},{"id":"3c64a1688445434ebb7c9cf4faa26e2c","uri":"https:\/\/i.scdn.co\/image\/430e69db333d45a5db933df2dcb005950eccfca3","width":640,"height":640},{"id":"6e5c3926ca274ad1ab4144e01a209515","uri":"https:\/\/i.scdn.co\/image\/1fa01e8b770525b8d02ad57bceed4e73c9b6880e","width":640,"height":640},{"id":"6cd92979664a4ee5bcd3dd3e107bf780","uri":"https:\/\/i.scdn.co\/image\/8e2ceafe15e67248e6d903153ebe16e937ab4f81","width":640,"height":640},{"id":"85f80fb8369e48548fcc33b06bafa48a","uri":"https:\/\/i.scdn.co\/image\/d27b37a7399cd76b52f05a0833d8ca7e0e719cc1","width":640,"height":640},{"id":"4e10878d2c554185afc46f492864d8e3","uri":"https:\/\/i.scdn.co\/image\/fab1f745a76ab01899d366f60b33ffc3229e02d5","width":640,"height":640},{"id":"ecb2c436028d41a8bbeec81a64a983c7","uri":"https:\/\/i.scdn.co\/image\/69156bbf0749feb4f5f26df2d6f60eb326324104","width":640,"height":640},{"id":"15d319d1ba534f7593450c60db6a1bf3","uri":"https:\/\/i.scdn.co\/image\/0c74e4d0fc90493ef43805be15632e1bb6ec937f","width":640,"height":640},{"id":"84a3dde02bba447faeeda715aac3301e","uri":"https:\/\/i.scdn.co\/image\/f0b4757d3ebc0bb9d2dce9d59496c0dfd7969355","width":640,"height":640},{"id":"d0691a830aff410d8e5886995f6120f6","uri":"https:\/\/i.scdn.co\/image\/2a750b8443331627ac9cdfff9d246b8b28d25f6d","width":640,"height":640},{"id":"ce34afe64fe846c0971971b69731a1ad","uri":"https:\/\/i.scdn.co\/image\/7d06e4113f7ec3632f5a689b7a14f5cf2dbd2d97","width":640,"height":640}],"global_chart_position":0,"monthly_listeners":1492664,"monthly_listeners_delta":-37419,"follower_count":274041,"following_count":0,"playlists":{"entries":[{"uri":"spotify:user:spotify:playlist:37i9dQZF1DXaKIA8E7WcJj","name":"All Out 60s","image_url":"https:\/\/pl.scdn.co\/images\/pl\/default\/7d83fe0cbafd08b5572718f353c71025b84244be","owner":{"name":"Spotify","uri":"spotify:user:spotify"},"listeners":162030,"description":"The essential tracks from a decade of revolutions."},{"uri":"spotify:user:spotify:playlist:37i9dQZF1DWSDoVybeQisg","name":"Psychedelic Rock","image_url":"https:\/\/pl.scdn.co\/images\/pl\/default\/539d8f61c37764d6b70f0fd48165a219faf155d8","owner":{"name":"Spotify","uri":"spotify:user:spotify"},"listeners":38865,"description":"Zone out to some of the best psychedelic rock classics."},{"uri":"spotify:user:spotify:playlist:37i9dQZF1DXcyVNt8nnPfR","name":"Chilled Classics","image_url":"https:\/\/pl.scdn.co\/images\/pl\/default\/d511f580d51e4094694d280a94c2e4f260152675","owner":{"name":"Spotify","uri":"spotify:user:spotify"},"listeners":27954,"description":"Relax and allow your mind wander with these seriously laid-back classics."},{"uri":"spotify:user:1225379340:playlist:54a4Lsi1OdU4T4XV3ysQBU","name":"Vietnam War Era Music","image_url":"https:\/\/pl.scdn.co\/images\/pl\/default\/2835d6264ec8fde2aaabfb3ec937582018ef13b2","owner":{"name":"Trevor Johnston","uri":"spotify:user:1225379340"},"listeners":27530},{"uri":"spotify:user:spotify:playlist:37i9dQZF1DX5qNE4zrflL7","name":"Alternative 60s","image_url":"https:\/\/pl.scdn.co\/images\/pl\/default\/4fe7dcd7917b77e67897d4177e384cb864793de0","owner":{"name":"Spotify","uri":"spotify:user:spotify"},"listeners":25356,"description":"The songs that influenced everything that has happened since. Cover: The Rolling Stones"}]},"cities":[{"country":"US","region":"CA","city":"Los Angeles","listeners":43000},{"country":"GB","region":"ENG","city":"London","listeners":35183},{"country":"MX","region":"CMX","city":"Mexico City","listeners":27445},{"country":"US","region":"IL","city":"Chicago","listeners":24011},{"country":"US","region":"NY","city":"New York City","listeners":22582},{"country":"US","region":"CA","city":"San Francisco","listeners":16758},{"country":"US","region":"NY","city":"Brooklyn","listeners":15868},{"country":"US","region":"TX","city":"Dallas","listeners":14429},{"country":"FR","region":"75","city":"Paris","listeners":13131},{"country":"CA","region":"ON","city":"Toronto","listeners":12914},{"country":"US","region":"GA","city":"Atlanta","listeners":12524},{"country":"CL","region":"RM","city":"Santiago","listeners":12452},{"country":"BR","region":"SP","city":"S\u00e3o Paulo","listeners":12403},{"country":"US","region":"TX","city":"Houston","listeners":12353},{"country":"US","region":"WA","city":"Seattle","listeners":11244},{"country":"SE","region":"AB","city":"Stockholm","listeners":10880},{"country":"ES","region":"M","city":"Madrid","listeners":10233},{"country":"US","region":"CO","city":"Denver","listeners":10013},{"country":"AU","region":"QLD","city":"Brisbane","listeners":9141},{"country":"AU","region":"VIC","city":"Melbourne","listeners":9014},{"country":"NZ","region":"AUK","city":"Auckland","listeners":8996},{"country":"IE","region":"L","city":"Dublin","listeners":8832},{"country":"AU","region":"NSW","city":"Sydney","listeners":8590},{"country":"DE","region":"BE","city":"Berlin","listeners":8559},{"country":"US","region":"OR","city":"Portland","listeners":8433},{"country":"CA","region":"QC","city":"Montreal","listeners":8397},{"country":"US","region":"PA","city":"Philadelphia","listeners":7958},{"country":"AU","region":"WA","city":"Perth","listeners":7606},{"country":"NO","region":"03","city":"Oslo","listeners":7487},{"country":"ES","region":"B","city":"Barcelona","listeners":7460},{"country":"US","region":"AZ","city":"Phoenix","listeners":6998},{"country":"AR","region":"C","city":"Buenos Aires","listeners":6621},{"country":"US","region":"DC","city":"Washington","listeners":6560},{"country":"NL","region":"NH","city":"Amsterdam","listeners":6456},{"country":"US","region":"CA","city":"Sacramento","listeners":6139},{"country":"US","region":"NY","city":"The Bronx","listeners":5933},{"country":"US","region":"VA","city":"Arlington","listeners":5827},{"country":"US","region":"MN","city":"Minneapolis","listeners":5782},{"country":"US","region":"TX","city":"Austin","listeners":5568},{"country":"US","region":"FL","city":"Orlando","listeners":5496},{"country":"DE","region":"HH","city":"Hamburg","listeners":5488},{"country":"DK","region":"84","city":"Copenhagen","listeners":5486},{"country":"CA","region":"BC","city":"Vancouver","listeners":5448},{"country":"US","region":"OH","city":"Cleveland","listeners":5446},{"country":"US","region":"MA","city":"Boston","listeners":5357},{"country":"IT","region":"MI","city":"Milan","listeners":5039},{"country":"PE","region":"LMA","city":"Lima","listeners":5007},{"country":"US","region":"CA","city":"Riverside","listeners":4648},{"country":"SE","region":"O","city":"Gothenburg","listeners":4595},{"country":"US","region":"CA","city":"Oakland","listeners":4515}]}};
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pattern = re.compile(r"\s+=\s+(\{.*?\});\n")
result = soup.find("script", text=pattern)

旁注：

虽然从技术上讲，在这种情况下可以在没有正则表达式的情况下手动提取 json，但不同页面的结果略有不同

我想学习正则表达式，但目前没有从头开始的带宽。

标签： pythonregex

解决方案

好吧，如果您可以依靠 JSON 周围的某些因素，您可以使用如下内容：

(?<=Spotify\.Entity\s=\s)(\{.*\});

这取决于Spotify.Entity =您编写的格式和间距非常具体地设置的 JSON。该模式使用正向后视，这意味着匹配的条件前缀必须是固定长度的；因此我没有\s+像您在最初的尝试中那样使用。这是一个例子：https ://regex101.com/r/jK5wU3/6

更新：一个微不足道的改变会带来更大的灵活性，虽然不是全部，你现在需要抓住捕获组 1：https ://regex101.com/r/aYeZNu/2

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