Regular Expressions 101

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An explanation of your regex will be automatically generated as you type.
Detailed match information will be displayed here automatically.
  • All Tokens
  • Common Tokens
  • General Tokens
  • Anchors
  • Meta Sequences
  • Quantifiers
  • Group Constructs
  • Character Classes
  • Flags/Modifiers
  • Substitution
  • A single character of: a, b or c
    [abc]
  • A character except: a, b or c
    [^abc]
  • A character in the range: a-z
    [a-z]
  • A character not in the range: a-z
    [^a-z]
  • A character in the range: a-z or A-Z
    [a-zA-Z]
  • Any single character
    .
  • Alternate - match either a or b
    a|b
  • Any whitespace character
    \s
  • Any non-whitespace character
    \S
  • Any digit
    \d
  • Any non-digit
    \D
  • Any word character
    \w
  • Any non-word character
    \W
  • Non-capturing group
    (?:...)
  • Capturing group
    (...)
  • Zero or one of a
    a?
  • Zero or more of a
    a*
  • One or more of a
    a+
  • Exactly 3 of a
    a{3}
  • 3 or more of a
    a{3,}
  • Between 3 and 6 of a
    a{3,6}
  • Start of string
    ^
  • End of string
    $
  • A word boundary
    \b
  • Non-word boundary
    \B

Regular Expression
No Match

/
/
g

Test String

Code Generator

Language

Generated Code

# coding=utf8 # the above tag defines encoding for this document and is for Python 2.x compatibility import re regex = r">Temperature<.*\n.*>(.+?) °C<" test_str = ("\n" "<!doctype html>\n" "<html lang=\"ru\">\n" "<head>\n" " <meta charset=\"UTF-8\">\n" " <title>Текущая погода в Сокольниках, Москва. Архив погоды.</title>\n" " <link rel=\"ICON\" href=\"/favicon.ico\">\n" " <link rel=\"stylesheet\" href=\"/css/reset.css\">\n" " <link rel=\"stylesheet\" href=\"/css/styles-new.css\">\n" " <link rel=\"stylesheet\" href=\"/css/bootstrap.min.css\">\n" " <link rel=\"stylesheet\" type=\"text/css\" href=\"https://s1.gismeteo.ua/static/css/informer2/gs_informerClient.min.css\">\n" " <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n" "<script type=\"text/javascript\" src=\"http://gc.kis.scr.kaspersky-labs.com/6533F8E7-1BF0-874B-8F28-D3F17F7C86D4/main.js\" charset=\"UTF-8\"></script></head>\n" "<body>\n" "<div class=\"container wrapper table page\">\n" " <div class=\"row cell\" style=\"margin-top:10px\">\n" " <div class=\"col-md-12 places\">\n" " <div class=\"row\">\n" " <a href=\"/\" class=\"col-md-3 col-xs-12\">Выбор станции</a>\n" " <a href=\"/prague\" class=\"col-md-3 col-xs-12\">Прага-Чехия</a>\n" " <a href=\"/sheremetevo\" class=\"col-md-3 col-xs-12\">Москва-Шереметьево</a>\n" " <a href=\"/sokolniki\" class=\"active col-md-3 col-xs-12\">Москва-Сокольники</a>\n" " </div>\n" " </div>\n" " <div class=\"col-md-12 header-container\">\n" " <div class=\"col-md-4 col-lg-3\">\n" " <a href=\"/\"><img class=\"logo\" src=\"/images/Logo-sokolniki.png\" alt=\"Текущая погода в Сокольниках, Москва.\"></a> </div>\n" " <div class=\"col-md-8 col-lg-9\">\n" " <div class=\"row\">\n" " <ul>\n" " <li class=\"active\"><a href=\"/sokolniki\">Текущие данные</a></li>\n" " <li class=\"\"><a href=\"/sokolniki/day.php\">Данные за сутки</a></li>\n" " <li class=\"\"><a href=\"/sokolniki/week.php\">Данные за неделю</a></li>\n" " <li class=\"\"><a href=\"/sokolniki/year.php\">Данные за год</a></li>\n" " <li class=\"\"><a href=\"/sokolniki/last.php\">Архивы прошлых лет</a></li>\n" " </ul>\n" " <div class=\"clear\"></div>\n" " <div class=\"col-md-12 descript-station\">\n" " Данные получены с помощью метеостанций DAVIS Vantage Pro2. </div>\n" " </div>\n" " </div>\n" " </div><div class=\"col-md-12\">\n" " <div class=\"col-md-6\"><p style=\"text-align: right; font-weight: bold;\">Восход солнца: 8:53</p></div>\n" " <div class=\"col-md-6\"><p style=\"text-align: left; font-weight: bold;\">Заход солнца: 15:59</p></div>\n" " <p class=\"last-measure\" style=\"font-style: italic;\">Время последнего измерения: 15.12.16 0:13</p>\n" " </div>\n" " <div class=\"col-md-12\">\n" " <table class=\"table table-bordered table-hover meteo-table\">\n" " <tbody>\n" " <tr>\n" " <td><p style=\"font-weight: bold; font-style: italic;\">Температура</p>\n" " <p style=\"font-weight: bold;font-style: italic;color: #9A9A9A;\">Temperature</p></td>\n" " <td><b>-7.8 °C</b></td>\n" " <td><p style=\"font-weight: bold; font-style: italic;\">Точка росы</p>\n" " <p style=\"font-weight: bold;font-style: italic;color: #9A9A9A;\">Due point</p></td>\n" " <td><b>-10.0 °C</b></td>\n" " </tr>\n" " <tr>\n" " <td><p style=\"font-weight: bold; font-style: italic;\">Влажность</p>\n" " <p style=\"font-weight: bold;font-style: italic;color: #9A9A9A;\">Humidity</p></td>\n" " <td><b>84% </b></td>\n" " <td><p style=\"font-weight: bold; font-style: italic;\">Температура комфорта</p>\n" " <p style=\"font-weight: bold;font-style: italic;color: #9A9A9A;\">Comfort temperature</p></td>\n" " <td><b>-9.1 °C</b></td>\n" " </tr>\n" " <tr>\n" " <td><p style=\"font-weight: bold; font-style: italic;\">Ветер</p>\n" " <p style=\"font-weight: bold;font-style: italic;color: #9A9A9A;\">Wind</p></td>\n" " <td><b>E в 0.4 m/s</b></td>\n" " <td><p style=\"font-weight: bold; font-style: italic;\">THW индекс</p>\n" " <p style=\"font-weight: bold;font-style: italic;color: #9A9A9A;\">THW index</p></td>\n" " <td><b>-9.2 °C</b></td>\n" " </tr>\n" " <tr>\n" " <td><p style=\"font-weight: bold; font-style: italic;\">Давление</p>\n" " <p style=\"font-weight: bold;font-style: italic;color: #9A9A9A;\">Air pressure</p></td>\n" " <td><b>760.3 mm & Rising Rapidly</b></td>\n" " <td><p style=\"font-weight: bold; font-style: italic;\">Индекс тепла</p>\n" " <p style=\"font-weight: bold;font-style: italic;color: #9A9A9A;\">Heat index</p></td>\n" " <td><b>-7.9 °C</b></td>\n" " </tr>\n" " <tr>\n" " <td><p style=\"font-weight: bold; font-style: italic;\">Осадки сегодня</p>\n" " <p style=\"font-weight: bold;font-style: italic;color: #9A9A9A;\">Rainfall today</p></td>\n" " <td><b>0.0 mm</b></td>\n" " <td><p style=\"font-weight: bold; font-style: italic;\">Последние осадки</p>\n" " <p style=\"font-weight: bold;font-style: italic;color: #9A9A9A;\">Last rainfall</p></td>\n" " <td><b>1.2 mm</b></td>\n" " </tr>\n" " <tr>\n" " <td><p style=\"font-weight: bold; font-style: italic;\">Осадки в месяце</p>\n" " <p style=\"font-weight: bold;font-style: italic;color: #9A9A9A;\">Rainfall this month</p></td>\n" " <td><b>5.8 mm</b></td>\n" " <td><p style=\"font-weight: bold; font-style: italic;\">Годовые осадки</p>\n" " <p style=\"font-weight: bold;font-style: italic;color: #9A9A9A;\">Rainfall this year</p></td>\n" " <td><b>355.8 mm</b></td>\n" " </tr>\n" " <tr>\n" " <td><p style=\"font-weight: bold; font-style: italic;\">Скорость текущих осадков</p>\n" " <p style=\"font-weight: bold;font-style: italic;color: #9A9A9A;\">Speed of the current rainfall</p></td>\n" " <td><b>0.0 mm/hr</b></td>\n" " <td><p style=\"font-weight: bold; font-style: italic;\">Солнечное излучение</p>\n" " <p style=\"font-weight: bold;font-style: italic;color: #9A9A9A;\">Solar radiation</p></td>\n" " <td><b>0 W/m?</b></td>\n" " </tr>\n" " <tr>\n" " <td><p style=\"font-weight: bold; font-style: italic;\">УФ индекс</p>\n" " <p style=\"font-weight: bold;font-style: italic;color: #9A9A9A;\">UV index</p></td>\n" " <td><b>0.0 index</b></td>\n" " <td></td>\n" " <td></td>\n" " </tr>\n" " </tbody>\n" " </table>\n" " </div>\n" " <div class=\"btns-weather\">\n" " <a href='dataNOAA/downld02.txt' class=\"grafic-btn\">Табличные данные<br>за два дня</a>\n" " <a href='dataNOAA/NOAAMO.TXT' class=\"grafic-btn\">Отчёт N0AA<br>за текущий месяц</a>\n" " <a href=\"day.php\" class=\"grafic-btn\">Посмотреть <br> графики</a>\n" " <a href='dataNOAA/NOAAPRMO.TXT' class=\"grafic-btn\">Отчёт N0AA<br>за прошлый месяц</a>\n" " <a href='dataNOAA/downld08.txt' class=\"grafic-btn\">Табличные данные<br>за неделю</a>\n" " </div>\n" " <div class=\"col-md-12 footer\" style=\"padding-top: 20px;\">\n" " <div class=\"row\">\n" " <div class=\"col-md-12 col-sm-12 i-home\">\n" " <div class=\"col-md-3 col-sm-3 informer\">\n" " <div class=\"row\" style=\"margin:5px\">\n" "<!-- Gismeteo informer START -->\n" "<link rel=\"stylesheet\" type=\"text/css\" href=\"https://bst1.gismeteo.ru/assets/flat-ui/legacy/css/informer.min.css\">\n" "<div id=\"gsInformerID-PEq6S8DHuRG6jf\" class=\"gsInformer\" style=\"width:239px;height:103px\">\n" " <div class=\"gsIContent\">\n" " <div id=\"cityLink\">\n" " <a href=\"https://www.gismeteo.ru/city/daily/4368/\" target=\"_blank\">Погода в Москве</a>\n" " </div>\n" " <div class=\"gsLinks\">\n" " <table>\n" " <tr>\n" " <td>\n" " <div class=\"leftCol\">\n" " <a href=\"https://www.gismeteo.ru/\" target=\"_blank\">\n" " <img alt=\"Gismeteo\" title=\"Gismeteo\" src=\"https://bst1.gismeteo.ru/assets/flat-ui/img/logo-mini2.png\" align=\"middle\" border=\"0\" />\n" " <span>Gismeteo</span>\n" " </a>\n" " </div>\n" " <div class=\"rightCol\">\n" " <a href=\"https://www.gismeteo.ru/city/weekly/4368/\" target=\"_blank\">Прогноз на 2 недели</a>\n" " </div>\n" " </td>\n" " </tr>\n" " </table>\n" " </div>\n" " </div>\n" "</div>\n" "<script async src=\"https://www.gismeteo.ru/api/informer/getinformer/?hash=PEq6S8DHuRG6jf\" type=\"text/javascript\"></script>\n" "<!-- Gismeteo informer END -->\n" " </div>\n" " </div>\n" " <div class=\"col-md-9 col-sm-9\">\n\n" "<div class=\"row\" style=\"background: #337AB7; height: 97px;\"><div style=\"border-radius: 0 0 0 25px;background: #FFFFFF;height: 55px;\"></div><h4>Сайт выполнен для <a href=\"http://aragonia.com\" style=\"color:#ccc\">Aragonia Group</a></h4></div>\n" " </div>\n" " </div>\n" " </div>\n" " </div>\n" " </div>\n" "<div style=\"text-align:center\">\n" "<div style=\"display:none\">\n" "<!-- SpyLOG f:0211 -->\n" "<script language=\"javascript\"><!--\n" "Mu=\"u6009.69.spylog.com\";Md=document;Mnv=navigator;Mp=0;\n" "Md.cookie=\"b=b\";Mc=0;if(Md.cookie)Mc=1;Mrn=Math.random();\n" "Mn=(Mnv.appName.substring(0,2)==\"Mi\")?0:1;Mt=(new Date()).getTimezoneOffset();\n" "Mz=\"p=\"+Mp+\"&rn=\"+Mrn+\"&c=\"+Mc+\"&t=\"+Mt;\n" "if(self!=top){Mfr=1;}else{Mfr=0;}Msl=\"1.0\";\n" "//--></script><script language=\"javascript1.1\"><!--\n" "Mpl=\"\";Msl=\"1.1\";Mj = (Mnv.javaEnabled()?\"Y\":\"N\");Mz+='&j='+Mj;\n" "//--></script><script language=\"javascript1.2\"><!--\n" "Msl=\"1.2\";Ms=screen;Mpx=(Mn==0)?Ms.colorDepth:Ms.pixelDepth;\n" "Mz+=\"&wh=\"+Ms.width+'x'+Ms.height+\"&px=\"+Mpx;\n" "//--></script><script language=\"javascript1.3\"><!--\n" "Msl=\"1.3\";//--></script><script language=\"javascript\"><!--\n" "My=\"\";My+=\"<a href='http://\"+Mu+\"/cnt?cid=600969&f=3&p=\"+Mp+\"&rn=\"+Mrn+\"' target='_blank'>\";\n" "My+=\"<img src='http://\"+Mu+\"/cnt?cid=600969&\"+Mz+\"&sl=\"+Msl+\"&r=\"+escape(Md.referrer)+\"&fr=\"+Mfr+\"&pg=\"+escape(window.location.href);\n" "My+=\"' border=0 width=88 height=31 alt='SpyLOG'>\";\n" "My+=\"</a>\";Md.write(My);//--></script><noscript>\n" "<a href=\"http://u6009.69.spylog.com/cnt?cid=600969&f=3&p=0\" target=\"_blank\">\n" "<img src=\"http://u6009.69.spylog.com/cnt?cid=600969&p=0\" alt='SpyLOG' border='0' width=88 height=31 >\n" "</a></noscript>\n" "<!-- SpyLOG -->\n" "</div>\n\n" "<!-- HotLog -->\n" "<span id=\"hotlog_counter\"></span>\n" "<span id=\"hotlog_dyn\"></span>\n" "<script type=\"text/javascript\">\n" "var hot_s = document.createElement('script');\n" "hot_s.type = 'text/javascript'; hot_s.async = true;\n" "hot_s.src = 'http://js.hotlog.ru/dcounter/427664.js';\n" "hot_d = document.getElementById('hotlog_dyn');\n" "hot_d.appendChild(hot_s);\n" "</script>\n" "<noscript>\n" "<a href=\"http://click.hotlog.ru/?427664\" target=\"_blank\"><img\n" "src=\"http://hit23.hotlog.ru/cgi-bin/hotlog/count?s=427664&amp;im=303\" border=\"0\"\n" "alt=\"HotLog\"></a>\n" "</noscript>\n" "<!-- /HotLog -->\n\n" "<!-- Yandex.Metrika informer -->\n" "<a href=\"https://metrika.yandex.ru/stat/?id=36081945&amp;from=informer\"\n" "target=\"_blank\" rel=\"nofollow\"><img src=\"https://informer.yandex.ru/informer/36081945/3_1_ECECECFF_CCCCCCFF_0_uniques\"\n" "style=\"width:88px; height:31px; border:0;\" alt=\"Яндекс.Метрика\" title=\"Яндекс.Метрика: данные за сегодня (просмотры, визиты и уникальные посетители)\" onclick=\"try{Ya.Metrika.informer({i:this,id:36081945,lang:'ru'});return false}catch(e){}\" /></a>\n" "<!-- /Yandex.Metrika informer -->\n\n" "<!-- Yandex.Metrika counter -->\n" "<script type=\"text/javascript\">\n" " (function (d, w, c) {\n" " (w[c] = w[c] || []).push(function() {\n" " try {\n" " w.yaCounter36081945 = new Ya.Metrika({\n" " id:36081945,\n" " clickmap:true,\n" " trackLinks:true,\n" " accurateTrackBounce:true\n" " });\n" " } catch(e) { }\n" " });\n\n" " var n = d.getElementsByTagName(\"script\")[0],\n" " s = d.createElement(\"script\"),\n" " f = function () { n.parentNode.insertBefore(s, n); };\n" " s.type = \"text/javascript\";\n" " s.async = true;\n" " s.src = \"https://mc.yandex.ru/metrika/watch.js\";\n\n" " if (w.opera == \"[object Opera]\") {\n" " d.addEventListener(\"DOMContentLoaded\", f, false);\n" " } else { f(); }\n" " })(document, window, \"yandex_metrika_callbacks\");\n" "</script>\n" "<noscript><div><img src=\"https://mc.yandex.ru/watch/36081945\" style=\"position:absolute; left:-9999px;\" alt=\"\" /></div></noscript>\n" "<!-- /Yandex.Metrika counter -->\n" "</div>\n" "</div>\n" "<script src=\"/js/jquery-2.1.1.js\"></script>\n" "<script src=\"/js/bootstrap.min.js\"></script>\n" "<script src=\"http://code.jquery.com/jquery-1.10.2.min.js\"></script>\n" "<script src=\"http://cdnjs.cloudflare.com/ajax/libs/jquery-easing/1.3/jquery.easing.min.js\"></script>\n" "<script src=\"//cdn.jsdelivr.net/stickynavbar.js/1.3.2/jquery.stickyNavbar.min.js\"></script>\n" "</body>\n" "</html>") matches = re.finditer(regex, test_str) for matchNum, match in enumerate(matches, start=1): print ("Match {matchNum} was found at {start}-{end}: {match}".format(matchNum = matchNum, start = match.start(), end = match.end(), match = match.group())) for groupNum in range(0, len(match.groups())): groupNum = groupNum + 1 print ("Group {groupNum} found at {start}-{end}: {group}".format(groupNum = groupNum, start = match.start(groupNum), end = match.end(groupNum), group = match.group(groupNum))) # Note: for Python 2.7 compatibility, use ur"" to prefix the regex and u"" to prefix the test string and substitution.

Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Python, please visit: https://docs.python.org/3/library/re.html