Probleme mit regulären Ausdrücken spezifische Daten

Question

Also hier zu holen sind mein RegEx:

re.findall(r'(?<=data-author=")(.*)(?=" data-author-fullname)' 

ich die Benutzername zu extrahieren versuchen, in diesem Fall: „zCourge_idx“, aber aus irgendeinem Grunde meine regex aufgreift alles bis zur nächsten Instanz von „Daten-Autor-Fullnamen“ kann ich weitere Informationen, falls erforderlich

"zCourge_iDX" data-author-fullname="t2_6ups9" ><p class="parent"><a name="d4gqsup"></a></p><div class="midcol unvoted" ><div class="arrow up login-required access-required" data-event-action="upvote" role="button" aria-label="upvote" tabindex="0" ></div><div class="arrow down login-required access-required" data-event-action="downvote" role="button" aria-label="downvote" tabindex="0" ></div></div><div class="entry unvoted"><p class="tagline"><a href="javascript:void(0)" class="expand" onclick="return togglecomment(this)">[–]</a><a href="https://www.reddit.com/user/zCourge_iDX" class="author may-blank id-t2_6ups9" >zCourge_iDX</a><span class="userattrs"></span>&#32;<span class="score dislikes">0 points</span><span class="score unvoted">1 point</span><span class="score likes">2 points</span>&#32;<time title="Mon Jun 20 15:50:56 2016 UTC" datetime="2016-06-20T15:50:56+00:00" class="live-timestamp">12 minutes ago</time>&nbsp;<a href="javascript:void(0)" class="numchildren" onclick="return togglecomment(this)">(2 children)</a></p><form action="#" class="usertext warn-on-unload" onsubmit="return post_form(this, 'editusertext')" id="form-t1_d4gqsupk6x"><input type="hidden" name="thing_id" value="t1_d4gqsup"/><div class="usertext-body may-blank-within md-container "><div class="md"><p>Have you seen the box office reports?</p> 
</div> 
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Answer 1

Wie bereits erwähnt von Oren in den Kommentaren enthalten ist unklar, warum Sie in der Regex verwenden Lookbehind.

Versuchen

re.findall('.*"(.+?)"\s+data-author-fullname', string) 

Die nicht gierige Spiel die Benutzernamen abholen, aber ich würde empfehlen, noch Sie für das Parsen von HTML etwas anderes als Regex zu verwenden, mag von mechanize, beautifulsoup usw.