Regular Expressions 101

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  • All Tokens
  • Common Tokens
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  • 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"(.+) ([IVXLC]*)(?: \(.+\))? (?:- Moon (\d+) )?- (Doomheim|Pann's Peeps|Polaris Bug Hunters|Polaris Corporation|Polaris Events|24th Imperial Crusade|Amarr Certified News|Amarr Civil Service|Amarr Constructions|Amarr Navy|Amarr Templars|Amarr Trade Registry|Ametat Security|Ardishapur Family|Bragian Order|Carthum Conglomerate|Civic Court|Company of Marcher Lords|Court Chamberlain|Ducia Foundry|Emperor Family|Fraternity of St\. Venefice|Further Foodstuffs|Hedion University|Holdfast Syndicate|HZO Refinery|Imperial Academy|Imperial Armaments|Imperial Chancellor|Imperial Guard|Imperial Shipment|Inherent Implants|Joint Harvesting|Kador Family|Kameira Lodge|Kor-Azor Family|Ministry of Assessment|Ministry of Internal Order|Ministry of War|Noble Appliances|Nurtura|Paladin Survey Force|Red and Silver Hand|Royal Amarr Institute|Royal Uhlans|Sarum Family|Shining Flame|Tal-Romon Legion|Tash-Murkon Family|Theology Council|Viziam|Zoar and Sons|Ammatar Consulate|Ammatar Fleet|Nefantar Miner Association|Archangels|Dominations|Guardian Angels|Salvation Angels|Blood Raiders|Caldari Business Tribunal|Caldari Constructions|Caldari Funds Unlimited|Caldari Navy|Caldari Provisions|Caldari Steel|CBD Corporation|CBD Sell Division|Chief Executive Panel|Commando Perkone|Corporate Police Force|Deep Core Mining Inc\.|Echelon Entertainment|Expert Distribution|Expert Housing|Expert Intervention|Home Guard|House of Records|Hyasyoda Corporation|Ikomari-Onu Enforcement|Intara Direct Action|Internal Security|Ishukone Corporation|Ishukone Watch|Isuuaya Tactical|Kaalakiota Corporation|Kinsho Swords|Kirkinen Risk Control|Lai Dai Corporation|Lai Dai Protection Service|Mercantile Club|Minedrill|Modern Finances|Nugoeihuvi Corporation|Onikanabo Brigade|Osmon Surveillance|Peace and Order Unit|Perkone|Poksu Mineral Group|Prompt Delivery|Propel Dynamics|Rapid Assembly|School of Applied Knowledge|Science and Trade Institute|Seituoda Taskforce Command|Spacelane Patrol|State and Region Bank|State Peacekeepers|State Protectorate|State War Academy|Storm Wind Strikeforce|Sukuuvestaa Corporation|Templis Dragonaurs|Top Down|Wiyrkomi Corporation|Wiyrkomi Peace Corps|Ytiri|Zainou|Zero-G Research Firm|Zumari Force Projection|CONCORD|DED|Inner Circle|Secure Commerce Commission|Vigilant Tyrannos|Algintal Core|Aliastra|Allotek Industries|Astral Mining Inc\.|Bank of Luminaire|Center for Advanced Studies|Chatelain Rapid Response|Chemal Tech|Combined Harvest|Condotta Rouvenor|CreoDron|Crux Special Tasks Group|Duvolle Laboratories|Edimmu Warfighters|Egonics Inc\.|Federal Administration|Federal Defense Union|Federal Freight|Federal Intelligence Office|Federal Marines|Federal Navy Academy|Federation Customs|Federation Navy|FedMart|Garoun Investment Bank|Impetus|Inner Zone Shipping|Kang Lo Directorate|Mannar Focused Warfare|Material Acquisition|Namtar Elite|Ostrakon Agency|Pend Insurance|Poteque Pharmaceuticals|President|Quafe Company|Resheph Interstellar Strategy|Roden Shipyards|Senate|Sinq Laison Gendarmes|Supreme Court|The Scope|TransStellar Shipping|University of Caille|Villore Sec Ops|Guristas|Guristas Production|Academy of Aggressive Behaviour|Genolution|Impro|Jove Navy|Jovian Directorate|Material Institute|Prosper|Shapeset|X-Sense|Khanid Innovation|Khanid Transport|Khanid Works|Royal Khanid Navy|Boundless Creation|Brutor Tribe|Brutor Vanguard|Circle of Huskarl|Core Complexion Inc\.|Eifyr and Co\.|Eyniletti Rangers|Forty-Nine Fedayeen|Freedom Extension|Krullefor Organization|Krusual Covert Operators|Krusual Tribe|Mikramurka Shock Troop|Minmatar Mining Corporation|Native Freshfood|Pator Tech School|Republic Command|Republic Fleet|Republic Justice Department|Republic Military School|Republic Parliament|Republic Security Services|Republic University|Sanmatar Kelkoons|Sebiestor Field Sappers|Sebiestor Tribe|Seykal Expeditionary Group|Six Kin Development|The Leisure Group|Tribal Liberation Force|Tronhadar Free Guard|Urban Management|Vherokior Combat Logistics|Vherokior Tribe|Mordu's Legion|Outer Ring Development|Outer Ring Excavations|Outer Ring Prospecting|True Creations|True Power|Serpentis Corporation|Serpentis Inquest|Food Relief|Sisters of EVE|The Sanctuary|InterBus|Society of Conscious Thought|Intaki Bank|Intaki Commerce|Intaki Space Police|Intaki Syndicate|Thukker Mix|Trust Partners|Arkombine)" test_str = ("Jita IV - Moon 4 - Caldari Navy Assembly Plant\n" "Amarr VIII (Oris) - Emperor Family Academy\n" "Dodixie IX - Moon 20 - Federation Navy Assembly Plant\n" "Hek VIII - Moon 12 - Boundless Creation Factory\n" "Rens VI - Moon 8 - Brutor Tribe Treasury\n" "Mastakomon VI - Propel Dynamics Factory\n" "Ishisomo VIII - Propel Dynamics Factory\n" "Oursulaert III - Federation Navy Testing Facilities\n" "Eruka II - Propel Dynamics Warehouse\n" "Agil VI - Moon 2 - CONCORD Logistic Support\n" "Orvolle I - Federation Navy Assembly Plant\n" "Tash-Murkon Prime II - Moon 1 - Kaalakiota Corporation Factory\n" "Stacmon V - Moon 9 - Federation Navy Assembly Plant\n" "Ichoriya V - Caldari Navy Logistic Support\n" "Motsu VII - Moon 6 - Caldari Navy Logistic Support\n" "X-7OMU II - Moon 7 - The Sanctuary School\n" "Apanake VIII - Moon 8 - Sisters of EVE Bureau\n" "PR-8CA III - Blood Raiders Logistic Support\n" "Teonusude III - Moon 1 - Republic Fleet Assembly Plant\n" "5ZXX-K V - Moon 17 - Mordu's Legion Testing Facilities\n" "Vlillirier IV - Moon 13 - Wiyrkomi Corporation Warehouse\n" "TG-Z23 III - Moon 8 - True Power Logistic Support\n" "Tar III - Secure Commerce Commission Depository\n" "Asghatil IX - Moon 3 - DED Assembly Plant\n" "Osmon II - Moon 1 - Sisters of EVE Bureau\n" "Villore VI - Federal Defense Union Logistic Support\n" "Charmerout IX - Wiyrkomi Corporation Factory\n" "Halle VII - Moon 6 - Federal Intelligence Office Assembly Plant\n" "XHQ-7V VI - True Yulai Shipyards\n" "Waskisen IX - Moon 11 - Corporate Police Force Logistic Support\n" "N5Y-4N VII - Moon 20 - Guristas Logistic Support\n" "Badivefi VIII - Moon 10 - Royal Khanid Navy Logistic Support\n" "Kamela V - 24th Imperial Crusade Logistic Support\n" "Esescama VIII - Moon 3 - Imperial Armaments Warehouse\n" "Arnon IX - Moon 3 - Sisters of EVE Bureau\n" "Couster II - Moon 1 - Federal Navy Academy\n" "Clellinon VI - Moon 11 - Center for Advanced Studies School\n" "Maila VII - Expert Housing Warehouse\n" "Aeschee X - Moon 20 - Sisters of EVE Academy\n" "XX9-WV VII - Moon 3 - Salvation Angels Trading Post\n" "Chamemi VI - Moon 1 - Royal Khanid Navy Assembly Plant\n" "Simela IV - Moon 7 - Sisters of EVE Academy\n" "Berta VI - Moon 19 - Ammatar Consulate Bureau\n" "Jita IV - Moon 5 - Caldari Navy Assembly Plant\n" "Nein VII - Moon 4 - Impro Factory\n" "Maila VI - Moon 1 - Zainou Biotech Production\n" "Tintoh VIII - Caldari Navy Testing Facilities\n" "Nourvukaiken V - State Protectorate Logistic Support\n" "Kakakela VI - Moon 15 - Caldari Navy Assembly Plant\n" "Alentene V - Moon 4 - Duvolle Laboratories Factory\n" "Pakkonen IV - Moon 19 - Caldari Constructions Production Plant\n" "Boystin V - Moon 6 - Federal Intelligence Office Assembly Plant\n" "Kamio VI - Moon 7 - Sukuuvestaa Corporation Production Plant\n" "Masalle VI - Moon 9 - Federation Navy Logistic Support\n" "Serpentis Prime VIII - Moon 2 - Serpentis Corporation Chemical Refinery\n" "A-ELE2 VI - Blood Raiders Assembly Plant\n" "Okagaiken IV - Caldari Navy Logistic Support\n" "Vey VIII - Moon 15 - FedMart Warehouse\n" "Alentene VI - Moon 6 - Roden Shipyards Warehouse\n" "Nisuwa VII - State Protectorate Logistic Support\n" "Irjunen II - Corporate Police Force Assembly Plant\n" "Aunia I - Moon 11 - Federation Navy Assembly Plant\n" "Pashanai III - Moon 2 - Amarr Navy Assembly Plant\n" "Illuin V - Moon 13 - Republic University\n" "Sortet V - Moon 1 - Federation Navy Assembly Plant\n" "Bereye VI - Federal Intelligence Office Assembly Plant\n" "Cat VI - Moon 7 - Federal Intelligence Office Logistic Support\n" "Hysera II - Corporate Police Force Assembly Plant\n" "Akiainavas III - School of Applied Knowledge\n" "V-3YG7 VI - The Capital\n" "Uemisaisen VII - Moon 16 - Home Guard Assembly Plant\n" "Ordion VII - Moon 16 - Amarr Navy Testing Facilities\n" "J5A-IX III - Mark Watney flies like Ironman\n" "Huola VI - 24th Imperial Crusade Logistic Support\n" "Algogille IX - Moon 3 - Federal Administration Information Center\n" "Kourmonen V - Ishukone Corporation Factory\n" "Sujarento IV - State Protectorate Logistic Support\n" "SHBF-V VI - atap's Hafnium Vault\n" "Nennamaila X - Wiyrkomi Peace Corps Assembly Plant\n" "LGK-VP V - Moon 3 - True Power Assembly Plant\n" "K-QWHE VI - Moon 15 - Serpentis Corporation Chemical Refinery\n" "Uitra VI - Moon 4 - State War Academy\n" "Zinkon VII - Moon 1 - Caldari Business Tribunal Accounting\n" "Kehjari II - Kaalakiota Corporation Factory\n" "Konora VI - Kaalakiota Corporation Factory\n" "YZ-LQL VII - Moon 1 - Guardian Angels Assembly Plant\n" "Kulelen V - Moon 8 - Zainou Biotech Production\n" "Vestouve IX - Moon 11 - Aliastra Warehouse\n" "G-0Q86 VII - Moon 1 - Guardian Angels Assembly Plant\n" "Kinakka III - Lai Dai Corporation Factory\n" "Gehi IX - Moon 4 - Royal Khanid Navy Assembly Plant\n" "Funtanainen IV - Moon 1 - Caldari Navy Logistic Support\n" "Ihakana VIII - Moon 6 - Nugoeihuvi Corporation Development Studio\n" "Oshaima IV - State Protectorate Logistic Support\n" "Shintaht IV (Konrakas) - Asgard I9B-8X\n" "Auvergne V - Moon 5 - Federal Intelligence Office Assembly Plant\n" "Aphend VII - Moon 7 - Carthum Conglomerate Foundry\n" "B-WPLZ VII - The Stables\n" "43B-O1 VIII - 43Bad Titans\n" "5KG-PY II - 20000 Isotopes\n" "Palas II - Royal Khanid Navy Assembly Plant\n" "E02-IK VIII - Moon 1 - Thukker Mix Factory\n" "Sirekur VIII - Moon 1 - Republic University\n" "WW-OVQ VI - District-85 Trade and Sale\n" "Luminaire VII (Caldari Prime) - Moon 6 - Federation Navy Assembly Plant\n" "4C-B7X VIII - Moon 1 - Outer Ring Excavations Mining Outpost\n" "Maila IV - Zainou Biotech Production\n" "Aldrat IX - Moon 13 - Minmatar Mining Corporation Mineral Reserve\n" "Tuomuta III - Ducia Foundry Mining Outpost\n" "Eldjaerin IV - Nurtura Food Packaging\n" "WY-9LL VIII - Moon 3 - Dominations Testing Facilities\n" "J7A-UR VI - Dominations Testing Facilities\n" "Mani VII - Moon 10 - Amarr Navy Assembly Plant\n" "Z3V-1W VII - Blood Raiders Assembly Plant\n" "N-HSK0 IV - Newport Beach\n" "Duripant VII - Moon 6 - Federal Navy Academy\n" "Venilen IX - Moon 7 - Caldari Navy Testing Facilities\n" "D87E-A VII - Moon 16 - Archangels Assembly Plant\n" "P-33KR II - RIP Vile Rat\n" "Sobaseki VII - Caldari Navy Logistic Support\n" "Nakri V - Moon 5 - Sarum Family Assembly Plant\n" "E-FIC0 I - E-FIC0NGESTION\n" "DR-427 VIII - Knackwurst inside\n" "P4-3TJ IX - Puckum's house of Handy's\n" "Azer VI - Moon 3 - Federation Customs Assembly Plant\n" "Lanngisi III - Moon 2 - Sisters of EVE Bureau\n" "Avenod VIII - Moon 17 - TransStellar Shipping Storage\n" "319-3D IX - Moon 22 - Blood Raiders Logistic Support\n" "Onnamon IV - State Protectorate Logistic Support\n" "Deltole III - Moon 1 - Core Complexion Inc. Warehouse\n" "X-M2LR VI - Moon 8 - Intaki Commerce Warehouse\n" "Dresi I - Moon 18 - Emperor Family Bureau\n" "Onnamon I - State War Academy\n" "Gamis X - Ammatar Fleet Logistic Support\n" "Badivefi VI - Moon 2 - Royal Khanid Navy Logistic Support\n" "C1-HAB IV - Ulthor's Manor\n" "Hasmijaala X - Moon 3 - Expert Housing Production Plant\n" "Dumkirinur V - Republic Military School\n" "6T3I-L VII - Moon 5 - Beta HQ\n" "Mora VI - Moon 4 - Ishukone Corporation Factory\n" "XGH-SH VIII - Look who's back\n" "Friggi VII - Moon 12 - Lai Dai Corporation Factory\n" "Bhizheba IX - Moon 1 - Amarr Navy Logistic Support\n" "XKM-DE X - Panhellenic project\n" "4-1ECP VIII - Blood-Gulch Outpost Number One\n" "N-8BZ6 IX - The Curse Of Volt\n" "Jufvitte VI - Moon 4 - Roden Shipyards Factory\n" "C8-CHY X - RIP Vile Rat\n" "Akonoinen I - Wiyrkomi Peace Corps Assembly Plant\n" "FC-3YI VII - Ragnar Anchorage\n" "Fliet III - Federal Defense Union Logistic Support\n" "Uemon VIII - Moon 3 - Perkone Factory\n" "Uedama VII - Lai Dai Corporation Factory\n" "Vasala VI - Moon 10 - Genolution Biotech Production\n" "Avele V - Moon 11 - CreoDron Warehouse\n" "I-1QKL VII - Operation Barbarossa\n" "Cistuvaert V - Moon 12 - Center for Advanced Studies School\n" "ERVK-P VII - Scorpio Base\n" "Niballe V - Moon 1 - Federation Navy Testing Facilities\n" "RQNF-9 XI - Bear's Den\n" "Halle VII - Federal Administration Bureau Offices\n" "Arnola VII - Moon 1 - Trust Partners Trading Post\n" "Parses VI - Moon 11 - Royal Khanid Navy Assembly Plant\n" "Siseide VII - Expert Distribution Retail Center\n" "Aunsou IV - Moon 3 - Core Complexion Inc. Factory\n" "FZCR-3 I - The Oasis\n" "Zehru IX - Moon 4 - Viziam Factory\n" "Torrinos V - Moon 16 - Home Guard Logistic Support\n" "6VDT-H V - Praesidium\n" "FD-MLJ VII - Moon 2 - Intaki Bank Depository\n" "Bosboger VI - Moon 7 - Republic Security Services Assembly Plant\n" "Piak III - Moon 19 - Caldari Navy Assembly Plant\n" "Ishomilken V - State Protectorate Logistic Support\n" "WV-0R2 V - It won't fit\n" "O-O2GN II - Ice Citadel\n" "Kulu X - Moon 16 - Royal Amarr Institute School\n" "1L-OEK VIII - Spectre's Cloaky Ninjas\n" "3V8-LJ IV - DOKDO-SUPREMACY\n" "Auner VIII - Moon 10 - Thukker Mix Factory\n" "Muvolailen IX - Moon 11 - Spacelane Patrol Assembly Plant\n" "OP7-BP V - The Tapirs Den\n" "L-1SW8 I - Fort Apache\n" "Tanoo IV - Trust Partners Trading Post\n" "XUW-3X VIII - Shoulder Deep\n" "Gergish X - Moon 3 - Royal Amarr Institute School\n" "M-RPN3 VII - Deeps homeland\n" "DK-FXK V - DK-Favela\n" "VSIG-K VIII - Moon 1 - Intaki Syndicate Bureau\n" "Algogille XIII - Federation Navy Testing Facilities\n" "Oulley IV - Moon 1 - Federation Navy Assembly Plant\n" "Sasta VI - Moon 3 - Ammatar Fleet Assembly Plant\n" "KFIE-Z III - Moon 7 - Blood Raiders Assembly Plant\n" "W0X-MG VI - ManDude - The Mouth Of The North\n" "Kubinen IX - Spacelane Patrol Assembly Plant\n" "Hageken V - Moon 2 - Caldari Navy Assembly Plant\n" "Sivala VIII - Sukuuvestaa Corporation Warehouse\n" "Scheenins II - Moon 2 - Roden Shipyards Factory\n" "Myyhera VIII - Moon 2 - Amarr Constructions Production Plant\n" "HVGR-R V - HVGR-R - MTL Reprocessing Plant\n" "8QMO-E III - RIP Vile Rat\n" "Jouvulen III - Science and Trade Institute School\n\n" "Arton II - CreoDron Factory\n" "Pemene VI - Moon 2 - Wiyrkomi Corporation Factory\n" "0N-3RO VII - Moon 14 - Blood Raiders Testing Facilities\n" "85-B52 IV - 85-B52s Love Shack\n" "Kisogo VII - State War Academy\n" "Khanid Prime V - Moon 1 - Khanid Innovation Factory\n" "Scolluzer XI - Moon 4 - Nugoeihuvi Corporation Development Studio\n" "NG-M8K III - Tetonic Shift\n" "Aurohunen V - Moon 10 - Propel Dynamics Factory\n" "Penirgman IX - Moon 3 - Ministry of Internal Order Assembly Plant\n" "Sakht VI - Moon 7 - Genolution Biotech Production\n" "E8-432 III - Trust in Patrick\n" "1-7B6D VI - 1-7 SHIME ratting carriers here\n" "HED-GP III - Hatuk Homestead\n" "Uedama VI - Moon 8 - Spacelane Patrol Logistic Support\n" "Esa VIII - Moon 2 - Viziam Warehouse\n" "Sirppala IV - Moon 4 - Rapid Assembly Factory\n" "Hentogaira I - Moon 11 - Science and Trade Institute School\n" "PC9-AY III - Intaki Commerce Trading Post\n" "MB-NKE VII - Word Of Bob\n" "Vlillirier VII - Roden Shipyards Factory\n" "NM-OEA V - Moon 4 - Outer Ring Excavations Mining Outpost\n" "E-YCML IV - Lion's Den\n" "0DD-MH VI - Alpha HQ\n" "Nalvula IX - Moon 2 - Spacelane Patrol Assembly Plant\n" "M-MBRT I - Moishe's Pawn Shop - we buy gold\n" "O-N589 VIII - Citadel Thugs\n" "60M-TG I - Intergalactic Sparkle Dragon Den\n" "Lirsautton I - CreoDron Factory\n" "Rayl X - Moon 3 - Carthum Conglomerate Factory\n" "9F-7PZ IX - If it aint Dutch It aint much\n" "Eygfe VII - Moon 19 - Minmatar Mining Corporation Refinery\n" "Jel V - Duvolle Laboratories Factory\n" "CH9L-K VI - CH9L-K Milliways\n" "G-D0N3 VIII - Can gD0 attitude\n" "3-SFWG V - DRASY Jobcenter\n" "Shafrak VIII - Moon 9 - Amarr Navy Assembly Plant\n" "Huola X - Moon 2 - Ishukone Corporation Factory\n" "O94U-A I - In Honor of Sean -Vile Rat\n" "Gulfonodi X - Moon 15 - Republic Fleet Testing Facilities\n" "X-7BIX VIII - S E V A S T O P O L\n" "1IX-C0 IX - Carebear Retirement Home\n" "G-4H4C III - Kazeboshka\n" "UVHO-F II - Special Ed Academy\n" "Eha III - State Protectorate Logistic Support\n" "FDZ4-A IX - Moon 6 - Society of Conscious Thought School\n" "DP-JD4 IX - Armistice Station\n" "Ikami X - CreoDron Factory\n" "Villore VII - Moon 6 - Senate Bureau\n" "Tanoo V - Moon 1 - Ammatar Consulate Bureau\n" "NBW-GD VI - ISI's Pleasure Palace\n" "H-GKI6 VI - Basilica of Maxentius\n" "Q-ITV5 VI - Sala Alts\n" "Chej VI - Ministry of Internal Order Assembly Plant\n" "Hentogaira II - Perkone Factory\n" "Sasiekko III - 24th Imperial Crusade Logistic Support\n" "0-O6XF IX - Princess of the south\n" "Dresi I - Moon 18 - Republic Security Services Assembly Plant\n" "Tash-Murkon Prime V - Moon 1 - Tash-Murkon Family Bureau\n" "Suroken VIII - Moon 7 - Propel Dynamics Factory\n" "C-BHDN III - Mount Sinai\n" "KZFV-4 IX - FR Liberte Egalite Fraternite\n" "Gisleres IV - Moon 6 - Roden Shipyards Warehouse\n" "Otsela VI - Moon 13 - Ishukone Corporation Factory") 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