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diff --git a/data/countries-data.py b/data/countries-data.py
new file mode 100644
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+++ b/data/countries-data.py
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+[
+    {
+        "name": "Afghanistan",
+        "capital": "Kabul",
+        "languages": [
+            "Pashto",
+            "Uzbek",
+            "Turkmen"
+        ],
+        "population": 27657145,
+        "flag": "https://restcountries.eu/data/afg.svg",
+        "currency": "Afghan afghani"
+    },
+    {
+        "name": "Åland Islands",
+        "capital": "Mariehamn",
+        "languages": [
+            "Swedish"
+        ],
+        "population": 28875,
+        "flag": "https://restcountries.eu/data/ala.svg",
+        "currency": "Euro"
+    },
+    {
+        "name": "Albania",
+        "capital": "Tirana",
+        "languages": [
+            "Albanian"
+        ],
+        "population": 2886026,
+        "flag": "https://restcountries.eu/data/alb.svg",
+        "currency": "Albanian lek"
+    },
+    {
+        "name": "Algeria",
+        "capital": "Algiers",
+        "languages": [
+            "Arabic"
+        ],
+        "population": 40400000,
+        "flag": "https://restcountries.eu/data/dza.svg",
+        "currency": "Algerian dinar"
+    },
+    {
+        "name": "American Samoa",
+        "capital": "Pago Pago",
+        "languages": [
+            "English",
+            "Samoan"
+        ],
+        "population": 57100,
+        "flag": "https://restcountries.eu/data/asm.svg",
+        "currency": "United State Dollar"
+    },
+    {
+        "name": "Andorra",
+        "capital": "Andorra la Vella",
+        "languages": [
+            "Catalan"
+        ],
+        "population": 78014,
+        "flag": "https://restcountries.eu/data/and.svg",
+        "currency": "Euro"
+    },
+    {
+        "name": "Angola",
+        "capital": "Luanda",
+        "languages": [
+            "Portuguese"
+        ],
+        "population": 25868000,
+        "flag": "https://restcountries.eu/data/ago.svg",
+        "currency": "Angolan kwanza"
+    },
+    {
+        "name": "Anguilla",
+        "capital": "The Valley",
+        "languages": [
+            "English"
+        ],
+        "population": 13452,
+        "flag": "https://restcountries.eu/data/aia.svg",
+        "currency": "East Caribbean dollar"
+    },
+    {
+        "name": "Antarctica",
+        "capital": "",
+        "languages": [
+            "English",
+            "Russian"
+        ],
+        "population": 1000,
+        "flag": "https://restcountries.eu/data/ata.svg",
+        "currency": "Australian dollar"
+    },
+    {
+        "name": "Antigua and Barbuda",
+        "capital": "Saint John's",
+        "languages": [
+            "English"
+        ],
+        "population": 86295,
+        "flag": "https://restcountries.eu/data/atg.svg",
+        "currency": "East Caribbean dollar"
+    },
+    {
+        "name": "Argentina",
+        "capital": "Buenos Aires",
+        "languages": [
+            "Spanish",
+            "Guaraní"
+        ],
+        "population": 43590400,
+        "flag": "https://restcountries.eu/data/arg.svg",
+        "currency": "Argentine peso"
+    },
+    {
+        "name": "Armenia",
+        "capital": "Yerevan",
+        "languages": [
+            "Armenian",
+            "Russian"
+        ],
+        "population": 2994400,
+        "flag": "https://restcountries.eu/data/arm.svg",
+        "currency": "Armenian dram"
+    },
+    {
+        "name": "Aruba",
+        "capital": "Oranjestad",
+        "languages": [
+            "Dutch",
+            "(Eastern) Punjabi"
+        ],
+        "population": 107394,
+        "flag": "https://restcountries.eu/data/abw.svg",
+        "currency": "Aruban florin"
+    },
+    {
+        "name": "Australia",
+        "capital": "Canberra",
+        "languages": [
+            "English"
+        ],
+        "population": 24117360,
+        "flag": "https://restcountries.eu/data/aus.svg",
+        "currency": "Australian dollar"
+    },
+    {
+        "name": "Austria",
+        "capital": "Vienna",
+        "languages": [
+            "German"
+        ],
+        "population": 8725931,
+        "flag": "https://restcountries.eu/data/aut.svg",
+        "currency": "Euro"
+    },
+    {
+        "name": "Azerbaijan",
+        "capital": "Baku",
+        "languages": [
+            "Azerbaijani"
+        ],
+        "population": 9730500,
+        "flag": "https://restcountries.eu/data/aze.svg",
+        "currency": "Azerbaijani manat"
+    },
+    {
+        "name": "Bahamas",
+        "capital": "Nassau",
+        "languages": [
+            "English"
+        ],
+        "population": 378040,
+        "flag": "https://restcountries.eu/data/bhs.svg",
+        "currency": "Bahamian dollar"
+    },
+    {
+        "name": "Bahrain",
+        "capital": "Manama",
+        "languages": [
+            "Arabic"
+        ],
+        "population": 1404900,
+        "flag": "https://restcountries.eu/data/bhr.svg",
+        "currency": "Bahraini dinar"
+    },
+    {
+        "name": "Bangladesh",
+        "capital": "Dhaka",
+        "languages": [
+            "Bengali"
+        ],
+        "population": 161006790,
+        "flag": "https://restcountries.eu/data/bgd.svg",
+        "currency": "Bangladeshi taka"
+    },
+    {
+        "name": "Barbados",
+        "capital": "Bridgetown",
+        "languages": [
+            "English"
+        ],
+        "population": 285000,
+        "flag": "https://restcountries.eu/data/brb.svg",
+        "currency": "Barbadian dollar"
+    },
+    {
+        "name": "Belarus",
+        "capital": "Minsk",
+        "languages": [
+            "Belarusian",
+            "Russian"
+        ],
+        "population": 9498700,
+        "flag": "https://restcountries.eu/data/blr.svg",
+        "currency": "New Belarusian ruble"
+    },
+    {
+        "name": "Belgium",
+        "capital": "Brussels",
+        "languages": [
+            "Dutch",
+            "French",
+            "German"
+        ],
+        "population": 11319511,
+        "flag": "https://restcountries.eu/data/bel.svg",
+        "currency": "Euro"
+    },
+    {
+        "name": "Belize",
+        "capital": "Belmopan",
+        "languages": [
+            "English",
+            "Spanish"
+        ],
+        "population": 370300,
+        "flag": "https://restcountries.eu/data/blz.svg",
+        "currency": "Belize dollar"
+    },
+    {
+        "name": "Benin",
+        "capital": "Porto-Novo",
+        "languages": [
+            "French"
+        ],
+        "population": 10653654,
+        "flag": "https://restcountries.eu/data/ben.svg",
+        "currency": "West African CFA franc"
+    },
+    {
+        "name": "Bermuda",
+        "capital": "Hamilton",
+        "languages": [
+            "English"
+        ],
+        "population": 61954,
+        "flag": "https://restcountries.eu/data/bmu.svg",
+        "currency": "Bermudian dollar"
+    },
+    {
+        "name": "Bhutan",
+        "capital": "Thimphu",
+        "languages": [
+            "Dzongkha"
+        ],
+        "population": 775620,
+        "flag": "https://restcountries.eu/data/btn.svg",
+        "currency": "Bhutanese ngultrum"
+    },
+    {
+        "name": "Bolivia (Plurinational State of)",
+        "capital": "Sucre",
+        "languages": [
+            "Spanish",
+            "Aymara",
+            "Quechua"
+        ],
+        "population": 10985059,
+        "flag": "https://restcountries.eu/data/bol.svg",
+        "currency": "Bolivian boliviano"
+    },
+    {
+        "name": "Bonaire, Sint Eustatius and Saba",
+        "capital": "Kralendijk",
+        "languages": [
+            "Dutch"
+        ],
+        "population": 17408,
+        "flag": "https://restcountries.eu/data/bes.svg",
+        "currency": "United States dollar"
+    },
+    {
+        "name": "Bosnia and Herzegovina",
+        "capital": "Sarajevo",
+        "languages": [
+            "Bosnian",
+            "Croatian",
+            "Serbian"
+        ],
+        "population": 3531159,
+        "flag": "https://restcountries.eu/data/bih.svg",
+        "currency": "Bosnia and Herzegovina convertible mark"
+    },
+    {
+        "name": "Botswana",
+        "capital": "Gaborone",
+        "languages": [
+            "English",
+            "Tswana"
+        ],
+        "population": 2141206,
+        "flag": "https://restcountries.eu/data/bwa.svg",
+        "currency": "Botswana pula"
+    },
+    {
+        "name": "Bouvet Island",
+        "capital": "",
+        "languages": [
+            "Norwegian",
+            "Norwegian Bokmål",
+            "Norwegian Nynorsk"
+        ],
+        "population": 0,
+        "flag": "https://restcountries.eu/data/bvt.svg",
+        "currency": "Norwegian krone"
+    },
+    {
+        "name": "Brazil",
+        "capital": "Brasília",
+        "languages": [
+            "Portuguese"
+        ],
+        "population": 206135893,
+        "flag": "https://restcountries.eu/data/bra.svg",
+        "currency": "Brazilian real"
+    },
+    {
+        "name": "British Indian Ocean Territory",
+        "capital": "Diego Garcia",
+        "languages": [
+            "English"
+        ],
+        "population": 3000,
+        "flag": "https://restcountries.eu/data/iot.svg",
+        "currency": "United States dollar"
+    },
+    {
+        "name": "United States Minor Outlying Islands",
+        "capital": "",
+        "languages": [
+            "English"
+        ],
+        "population": 300,
+        "flag": "https://restcountries.eu/data/umi.svg",
+        "currency": "United States Dollar"
+    },
+    {
+        "name": "Virgin Islands (British)",
+        "capital": "Road Town",
+        "languages": [
+            "English"
+        ],
+        "population": 28514,
+        "flag": "https://restcountries.eu/data/vgb.svg",
+        "currency": "[D]"
+    },
+    {
+        "name": "Virgin Islands (U.S.)",
+        "capital": "Charlotte Amalie",
+        "languages": [
+            "English"
+        ],
+        "population": 114743,
+        "flag": "https://restcountries.eu/data/vir.svg",
+        "currency": "United States dollar"
+    },
+    {
+        "name": "Brunei Darussalam",
+        "capital": "Bandar Seri Begawan",
+        "languages": [
+            "Malay"
+        ],
+        "population": 411900,
+        "flag": "https://restcountries.eu/data/brn.svg",
+        "currency": "Brunei dollar"
+    },
+    {
+        "name": "Bulgaria",
+        "capital": "Sofia",
+        "languages": [
+            "Bulgarian"
+        ],
+        "population": 7153784,
+        "flag": "https://restcountries.eu/data/bgr.svg",
+        "currency": "Bulgarian lev"
+    },
+    {
+        "name": "Burkina Faso",
+        "capital": "Ouagadougou",
+        "languages": [
+            "French",
+            "Fula"
+        ],
+        "population": 19034397,
+        "flag": "https://restcountries.eu/data/bfa.svg",
+        "currency": "West African CFA franc"
+    },
+    {
+        "name": "Burundi",
+        "capital": "Bujumbura",
+        "languages": [
+            "French",
+            "Kirundi"
+        ],
+        "population": 10114505,
+        "flag": "https://restcountries.eu/data/bdi.svg",
+        "currency": "Burundian franc"
+    },
+    {
+        "name": "Cambodia",
+        "capital": "Phnom Penh",
+        "languages": [
+            "Khmer"
+        ],
+        "population": 15626444,
+        "flag": "https://restcountries.eu/data/khm.svg",
+        "currency": "Cambodian riel"
+    },
+    {
+        "name": "Cameroon",
+        "capital": "Yaoundé",
+        "languages": [
+            "English",
+            "French"
+        ],
+        "population": 22709892,
+        "flag": "https://restcountries.eu/data/cmr.svg",
+        "currency": "Central African CFA franc"
+    },
+    {
+        "name": "Canada",
+        "capital": "Ottawa",
+        "languages": [
+            "English",
+            "French"
+        ],
+        "population": 36155487,
+        "flag": "https://restcountries.eu/data/can.svg",
+        "currency": "Canadian dollar"
+    },
+    {
+        "name": "Cabo Verde",
+        "capital": "Praia",
+        "languages": [
+            "Portuguese"
+        ],
+        "population": 531239,
+        "flag": "https://restcountries.eu/data/cpv.svg",
+        "currency": "Cape Verdean escudo"
+    },
+    {
+        "name": "Cayman Islands",
+        "capital": "George Town",
+        "languages": [
+            "English"
+        ],
+        "population": 58238,
+        "flag": "https://restcountries.eu/data/cym.svg",
+        "currency": "Cayman Islands dollar"
+    },
+    {
+        "name": "Central African Republic",
+        "capital": "Bangui",
+        "languages": [
+            "French",
+            "Sango"
+        ],
+        "population": 4998000,
+        "flag": "https://restcountries.eu/data/caf.svg",
+        "currency": "Central African CFA franc"
+    },
+    {
+        "name": "Chad",
+        "capital": "N'Djamena",
+        "languages": [
+            "French",
+            "Arabic"
+        ],
+        "population": 14497000,
+        "flag": "https://restcountries.eu/data/tcd.svg",
+        "currency": "Central African CFA franc"
+    },
+    {
+        "name": "Chile",
+        "capital": "Santiago",
+        "languages": [
+            "Spanish"
+        ],
+        "population": 18191900,
+        "flag": "https://restcountries.eu/data/chl.svg",
+        "currency": "Chilean peso"
+    },
+    {
+        "name": "China",
+        "capital": "Beijing",
+        "languages": [
+            "Chinese"
+        ],
+        "population": 1377422166,
+        "flag": "https://restcountries.eu/data/chn.svg",
+        "currency": "Chinese yuan"
+    },
+    {
+        "name": "Christmas Island",
+        "capital": "Flying Fish Cove",
+        "languages": [
+            "English"
+        ],
+        "population": 2072,
+        "flag": "https://restcountries.eu/data/cxr.svg",
+        "currency": "Australian dollar"
+    },
+    {
+        "name": "Cocos (Keeling) Islands",
+        "capital": "West Island",
+        "languages": [
+            "English"
+        ],
+        "population": 550,
+        "flag": "https://restcountries.eu/data/cck.svg",
+        "currency": "Australian dollar"
+    },
+    {
+        "name": "Colombia",
+        "capital": "Bogotá",
+        "languages": [
+            "Spanish"
+        ],
+        "population": 48759958,
+        "flag": "https://restcountries.eu/data/col.svg",
+        "currency": "Colombian peso"
+    },
+    {
+        "name": "Comoros",
+        "capital": "Moroni",
+        "languages": [
+            "Arabic",
+            "French"
+        ],
+        "population": 806153,
+        "flag": "https://restcountries.eu/data/com.svg",
+        "currency": "Comorian franc"
+    },
+    {
+        "name": "Congo",
+        "capital": "Brazzaville",
+        "languages": [
+            "French",
+            "Lingala"
+        ],
+        "population": 4741000,
+        "flag": "https://restcountries.eu/data/cog.svg",
+        "currency": "Central African CFA franc"
+    },
+    {
+        "name": "Congo (Democratic Republic of the)",
+        "capital": "Kinshasa",
+        "languages": [
+            "French",
+            "Lingala",
+            "Kongo",
+            "Swahili",
+            "Luba-Katanga"
+        ],
+        "population": 85026000,
+        "flag": "https://restcountries.eu/data/cod.svg",
+        "currency": "Congolese franc"
+    },
+    {
+        "name": "Cook Islands",
+        "capital": "Avarua",
+        "languages": [
+            "English"
+        ],
+        "population": 18100,
+        "flag": "https://restcountries.eu/data/cok.svg",
+        "currency": "New Zealand dollar"
+    },
+    {
+        "name": "Costa Rica",
+        "capital": "San José",
+        "languages": [
+            "Spanish"
+        ],
+        "population": 4890379,
+        "flag": "https://restcountries.eu/data/cri.svg",
+        "currency": "Costa Rican colón"
+    },
+    {
+        "name": "Croatia",
+        "capital": "Zagreb",
+        "languages": [
+            "Croatian"
+        ],
+        "population": 4190669,
+        "flag": "https://restcountries.eu/data/hrv.svg",
+        "currency": "Croatian kuna"
+    },
+    {
+        "name": "Cuba",
+        "capital": "Havana",
+        "languages": [
+            "Spanish"
+        ],
+        "population": 11239004,
+        "flag": "https://restcountries.eu/data/cub.svg",
+        "currency": "Cuban convertible peso"
+    },
+    {
+        "name": "Curaçao",
+        "capital": "Willemstad",
+        "languages": [
+            "Dutch",
+            "(Eastern) Punjabi",
+            "English"
+        ],
+        "population": 154843,
+        "flag": "https://restcountries.eu/data/cuw.svg",
+        "currency": "Netherlands Antillean guilder"
+    },
+    {
+        "name": "Cyprus",
+        "capital": "Nicosia",
+        "languages": [
+            "Greek (modern)",
+            "Turkish",
+            "Armenian"
+        ],
+        "population": 847000,
+        "flag": "https://restcountries.eu/data/cyp.svg",
+        "currency": "Euro"
+    },
+    {
+        "name": "Czech Republic",
+        "capital": "Prague",
+        "languages": [
+            "Czech",
+            "Slovak"
+        ],
+        "population": 10558524,
+        "flag": "https://restcountries.eu/data/cze.svg",
+        "currency": "Czech koruna"
+    },
+    {
+        "name": "Denmark",
+        "capital": "Copenhagen",
+        "languages": [
+            "Danish"
+        ],
+        "population": 5717014,
+        "flag": "https://restcountries.eu/data/dnk.svg",
+        "currency": "Danish krone"
+    },
+    {
+        "name": "Djibouti",
+        "capital": "Djibouti",
+        "languages": [
+            "French",
+            "Arabic"
+        ],
+        "population": 900000,
+        "flag": "https://restcountries.eu/data/dji.svg",
+        "currency": "Djiboutian franc"
+    },
+    {
+        "name": "Dominica",
+        "capital": "Roseau",
+        "languages": [
+            "English"
+        ],
+        "population": 71293,
+        "flag": "https://restcountries.eu/data/dma.svg",
+        "currency": "East Caribbean dollar"
+    },
+    {
+        "name": "Dominican Republic",
+        "capital": "Santo Domingo",
+        "languages": [
+            "Spanish"
+        ],
+        "population": 10075045,
+        "flag": "https://restcountries.eu/data/dom.svg",
+        "currency": "Dominican peso"
+    },
+    {
+        "name": "Ecuador",
+        "capital": "Quito",
+        "languages": [
+            "Spanish"
+        ],
+        "population": 16545799,
+        "flag": "https://restcountries.eu/data/ecu.svg",
+        "currency": "United States dollar"
+    },
+    {
+        "name": "Egypt",
+        "capital": "Cairo",
+        "languages": [
+            "Arabic"
+        ],
+        "population": 91290000,
+        "flag": "https://restcountries.eu/data/egy.svg",
+        "currency": "Egyptian pound"
+    },
+    {
+        "name": "El Salvador",
+        "capital": "San Salvador",
+        "languages": [
+            "Spanish"
+        ],
+        "population": 6520675,
+        "flag": "https://restcountries.eu/data/slv.svg",
+        "currency": "United States dollar"
+    },
+    {
+        "name": "Equatorial Guinea",
+        "capital": "Malabo",
+        "languages": [
+            "Spanish",
+            "French"
+        ],
+        "population": 1222442,
+        "flag": "https://restcountries.eu/data/gnq.svg",
+        "currency": "Central African CFA franc"
+    },
+    {
+        "name": "Eritrea",
+        "capital": "Asmara",
+        "languages": [
+            "Tigrinya",
+            "Arabic",
+            "English"
+        ],
+        "population": 5352000,
+        "flag": "https://restcountries.eu/data/eri.svg",
+        "currency": "Eritrean nakfa"
+    },
+    {
+        "name": "Estonia",
+        "capital": "Tallinn",
+        "languages": [
+            "Estonian"
+        ],
+        "population": 1315944,
+        "flag": "https://restcountries.eu/data/est.svg",
+        "currency": "Euro"
+    },
+    {
+        "name": "Ethiopia",
+        "capital": "Addis Ababa",
+        "languages": [
+            "Amharic"
+        ],
+        "population": 92206005,
+        "flag": "https://restcountries.eu/data/eth.svg",
+        "currency": "Ethiopian birr"
+    },
+    {
+        "name": "Falkland Islands (Malvinas)",
+        "capital": "Stanley",
+        "languages": [
+            "English"
+        ],
+        "population": 2563,
+        "flag": "https://restcountries.eu/data/flk.svg",
+        "currency": "Falkland Islands pound"
+    },
+    {
+        "name": "Faroe Islands",
+        "capital": "Tórshavn",
+        "languages": [
+            "Faroese"
+        ],
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+        ],
+        "population": 103252,
+        "flag": "https://restcountries.eu/data/ton.svg",
+        "currency": "Tongan paʻanga"
+    },
+    {
+        "name": "Trinidad and Tobago",
+        "capital": "Port of Spain",
+        "languages": [
+            "English"
+        ],
+        "population": 1349667,
+        "flag": "https://restcountries.eu/data/tto.svg",
+        "currency": "Trinidad and Tobago dollar"
+    },
+    {
+        "name": "Tunisia",
+        "capital": "Tunis",
+        "languages": [
+            "Arabic"
+        ],
+        "population": 11154400,
+        "flag": "https://restcountries.eu/data/tun.svg",
+        "currency": "Tunisian dinar"
+    },
+    {
+        "name": "Turkey",
+        "capital": "Ankara",
+        "languages": [
+            "Turkish"
+        ],
+        "population": 78741053,
+        "flag": "https://restcountries.eu/data/tur.svg",
+        "currency": "Turkish lira"
+    },
+    {
+        "name": "Turkmenistan",
+        "capital": "Ashgabat",
+        "languages": [
+            "Turkmen",
+            "Russian"
+        ],
+        "population": 4751120,
+        "flag": "https://restcountries.eu/data/tkm.svg",
+        "currency": "Turkmenistan manat"
+    },
+    {
+        "name": "Turks and Caicos Islands",
+        "capital": "Cockburn Town",
+        "languages": [
+            "English"
+        ],
+        "population": 31458,
+        "flag": "https://restcountries.eu/data/tca.svg",
+        "currency": "United States dollar"
+    },
+    {
+        "name": "Tuvalu",
+        "capital": "Funafuti",
+        "languages": [
+            "English"
+        ],
+        "population": 10640,
+        "flag": "https://restcountries.eu/data/tuv.svg",
+        "currency": "Australian dollar"
+    },
+    {
+        "name": "Uganda",
+        "capital": "Kampala",
+        "languages": [
+            "English",
+            "Swahili"
+        ],
+        "population": 33860700,
+        "flag": "https://restcountries.eu/data/uga.svg",
+        "currency": "Ugandan shilling"
+    },
+    {
+        "name": "Ukraine",
+        "capital": "Kiev",
+        "languages": [
+            "Ukrainian"
+        ],
+        "population": 42692393,
+        "flag": "https://restcountries.eu/data/ukr.svg",
+        "currency": "Ukrainian hryvnia"
+    },
+    {
+        "name": "United Arab Emirates",
+        "capital": "Abu Dhabi",
+        "languages": [
+            "Arabic"
+        ],
+        "population": 9856000,
+        "flag": "https://restcountries.eu/data/are.svg",
+        "currency": "United Arab Emirates dirham"
+    },
+    {
+        "name": "United Kingdom of Great Britain and Northern Ireland",
+        "capital": "London",
+        "languages": [
+            "English"
+        ],
+        "population": 65110000,
+        "flag": "https://restcountries.eu/data/gbr.svg",
+        "currency": "British pound"
+    },
+    {
+        "name": "United States of America",
+        "capital": "Washington, D.C.",
+        "languages": [
+            "English"
+        ],
+        "population": 323947000,
+        "flag": "https://restcountries.eu/data/usa.svg",
+        "currency": "United States dollar"
+    },
+    {
+        "name": "Uruguay",
+        "capital": "Montevideo",
+        "languages": [
+            "Spanish"
+        ],
+        "population": 3480222,
+        "flag": "https://restcountries.eu/data/ury.svg",
+        "currency": "Uruguayan peso"
+    },
+    {
+        "name": "Uzbekistan",
+        "capital": "Tashkent",
+        "languages": [
+            "Uzbek",
+            "Russian"
+        ],
+        "population": 31576400,
+        "flag": "https://restcountries.eu/data/uzb.svg",
+        "currency": "Uzbekistani so'm"
+    },
+    {
+        "name": "Vanuatu",
+        "capital": "Port Vila",
+        "languages": [
+            "Bislama",
+            "English",
+            "French"
+        ],
+        "population": 277500,
+        "flag": "https://restcountries.eu/data/vut.svg",
+        "currency": "Vanuatu vatu"
+    },
+    {
+        "name": "Venezuela (Bolivarian Republic of)",
+        "capital": "Caracas",
+        "languages": [
+            "Spanish"
+        ],
+        "population": 31028700,
+        "flag": "https://restcountries.eu/data/ven.svg",
+        "currency": "Venezuelan bolívar"
+    },
+    {
+        "name": "Viet Nam",
+        "capital": "Hanoi",
+        "languages": [
+            "Vietnamese"
+        ],
+        "population": 92700000,
+        "flag": "https://restcountries.eu/data/vnm.svg",
+        "currency": "Vietnamese đồng"
+    },
+    {
+        "name": "Wallis and Futuna",
+        "capital": "Mata-Utu",
+        "languages": [
+            "French"
+        ],
+        "population": 11750,
+        "flag": "https://restcountries.eu/data/wlf.svg",
+        "currency": "CFP franc"
+    },
+    {
+        "name": "Western Sahara",
+        "capital": "El Aaiún",
+        "languages": [
+            "Spanish"
+        ],
+        "population": 510713,
+        "flag": "https://restcountries.eu/data/esh.svg",
+        "currency": "Moroccan dirham"
+    },
+    {
+        "name": "Yemen",
+        "capital": "Sana'a",
+        "languages": [
+            "Arabic"
+        ],
+        "population": 27478000,
+        "flag": "https://restcountries.eu/data/yem.svg",
+        "currency": "Yemeni rial"
+    },
+    {
+        "name": "Zambia",
+        "capital": "Lusaka",
+        "languages": [
+            "English"
+        ],
+        "population": 15933883,
+        "flag": "https://restcountries.eu/data/zmb.svg",
+        "currency": "Zambian kwacha"
+    },
+    {
+        "name": "Zimbabwe",
+        "capital": "Harare",
+        "languages": [
+            "English",
+            "Shona",
+            "Northern Ndebele"
+        ],
+        "population": 14240168,
+        "flag": "https://restcountries.eu/data/zwe.svg",
+        "currency": "Botswana pula"
+    }
+]
diff --git a/mymodule.py b/mymodule.py
new file mode 100644
index 00000000..127ab21f
--- /dev/null
+++ b/mymodule.py
@@ -0,0 +1,16 @@
+def generate_full_name(firstname, lastname):
+      space = ' '
+      fullname = firstname + space + lastname
+      return fullname
+
+def sum_two_nums (num1, num2):
+    return num1 + num2
+gravity = 9.81
+person = {
+    "firstname": "Asabeneh",
+    "age": 250,
+    "country": "Finland",
+    "city":'Helsinki'
+}
+
+
diff --git a/readme10-12.md b/readme10-12.md
index a6b4e771..34d142a0 100644
--- a/readme10-12.md
+++ b/readme10-12.md
@@ -29,7 +29,18 @@
     - [Function as parameter of other function](#function-as-parameter-of-other-function)
   - [Exercises: Day 11](#exercises-day-11)
 - [Day 12](#day-12)
-  - [Import module in Python](#import-module-in-python)
+  - [Module](#module)
+    - [What is a module](#what-is-a-module)
+    - [Creating a module](#creating-a-module)
+    - [Importing a module](#importing-a-module)
+    - [Import functions from a module](#import-functions-from-a-module)
+    - [Import functions from a module and renaming](#import-functions-from-a-module-and-renaming)
+  - [Import Builtin Modules](#import-builtin-modules)
+    - [OS Module](#os-module)
+    - [Sys Module](#sys-module)
+    - [Statistics Module](#statistics-module)
+    - [Math Module](#math-module)
+    - [Random Module](#random-module)
   - [Exercises: Day 12](#exercises-day-12)
 # Day 10
 ## Loops
@@ -666,10 +677,100 @@ Call your function *is_empty*, it takes a parameter and it checks if it is empty
 18. Write a functions which checks if all items are unique in the list.
 19. Write a function which checks if all the items of the list are the same data type.
 20. Write a function which check if variable if valid python variable 
+21. Go the data folder and access the countries-data.py file. 
+* Create a function called the most_spoken_languages the world and it returns the 10 or 20 most spoken countries in the world in descending order
+* Create a function called the most_populated_countries and it return 10 or 20 most populated countries in descending order.
 
 # Day 12
-## Import module in Python
-Like other programming languages we can also import modules from by importing the file/function using the key word *import*. Lets import the common module we will use most of the time.
+## Module
+### What is a module
+A module is a file containing set of codes or a set of function which can be included to an application. A module could be a file containing a single variable, or function, a big code base.  
+### Creating  a module
+To create a module we write our codes in a python script and we save it as .py file. Create a file named mymodule.py inside your project folder. Let write code on this file.
+```py
+# mymodule.py file
+def generate_full_name(firstname, lastname):
+      space = ' '
+      fullname = firstname + space + lastname
+      return fullname
+```
+Create main.py file in your project directory and import the mymodule.py file.
+### Importing a module
+To import the file we use the *import* keyword and the name of the file only.
+```py
+# main.py file
+import mymodule
+print(mymodule.generate_full_name('Asabeneh', 'Yetayeh'))
+```
+### Import functions from a module
+We can have many functions in a file and we can import all the functions differently.
+```py
+# main.py file
+from mymodule import generate_full_name, sum_two_nums, person, gravity
+print(generate_full_name('Asabneh','Yetay'))
+print(sum_two_nums(1,9))
+mass = 100;
+weight = mass * gravity
+print(weight)
+print(person['firstname'])
+```
+### Import functions from a module and renaming
+During importing we can rename the name of the module.
+```py
+# main.py file
+from mymodule import generate_full_name as fullname, sum_two_nums as total, person as p, gravity as g
+print(fullname('Asabneh','Yetayeh'))
+print(total(1,9))
+mass = 100;
+weight = mass * g
+print(weight)
+print(p)
+print(p['firstname'])
+```
+## Import Builtin Modules
+Like other programming languages we can also import modules  by importing the file/function using the key word *import*. Lets import the common module we will use most of the time. Some of the common builtin modules *math*, *datetime*, *os*,*sys*, *random*, *statistics*, *collections*, *json*,*re*
+### OS Module
+Using python *os* module it is possible to automatically perform many operating system tasks.The OS module in Python provides functions for creating, changing current working directory,  and removing a directory (folder), fetching its contents, changing and identifying the current directory.
+```py
+# import the module
+import os
+# Creating a directory
+os.mkdir('directory_name')
+# Changing the current directory
+os.chdir('path')
+# Getting current working directory
+os.getcwd()
+# Removing directory
+os.rmdir()
+```
+### Sys Module
+The sys module provides functions and variables used to manipulate different parts of the Python runtime environment. sys.argv returns a list of command line arguments passed to a Python script. The item at index 0 in this list is always the name of the script, at index 1 is argument passed from the command line.
+```py
+import sys
+print(sys.argv[0], argv[1],sys.argv[2])
+print('Welcome {}. Enjoy  {} challenge!'.format(sys.argv[1], sys.argv[2]))
+output
+Welcome Asabeneh. Enjoy  30DayOfPython challenge!
+
+# to exist syst
+sys.exit()
+# To know the largest integer variable it takes
+sys.maxsize
+# To know environment path
+syst.path
+# To know the version of python you are using
+sys.version
+```
+### Statistics Module
+The statistics module provides functions to mathematical statistics of numeric data. The  popular statistical functions which are defined in this module *mean*, *median*, *mode*, *stdev* etc.
+```py
+from statistics import * # importing all the statistics module
+print(mean(ages))       # 22.4
+print(median(ages))     # 23
+print(mode(ages))       # 20
+print(stdev(ages))      # 2.3
+```
+### Math Module
   ```py
   import math
   print(math.pi)           # 3.141592653589793, pi constant
@@ -711,6 +812,7 @@ When we import we can also rename the name of the function.
   from math import pi as  PI
   print(PI) # 3.141592653589793
   ```
+### Random Module
 By now you are familiar with importing modules. Lets do another more import to be very familiar with importing. Let's import *random* module which can gives random number between 0 and 0.9999.... The *random* module has lots of functions but in this section we will only see *random* and *randint*.
   ```py
   from random import random, randint