我的代码：
import json
from urllib.request import urlopen
html = urlopen("https://free.currconv.com/api/v7/currencies?apiKey=<API KEY>")
data = json.load(html)
currencies = data['requests']
print(currencies)
{ "requests" }dataAPI返回的JSON{
"requests": {
"results": {
"ALL": {
"currencyName": "Albanian Lek",
"currencySymbol": "Lek",
"id": "ALL"
},
"XCD": {
"currencyName": "East Caribbean Dollar",
"currencySymbol": "$",
"id": "XCD"
},
"EUR": {
"currencyName": "Euro",
"currencySymbol": "€",
"id": "EUR"
},
"BBD": {
"currencyName": "Barbadian Dollar",
"currencySymbol": "$",
"id": "BBD"
},
"BTN": {
"currencyName": "Bhutanese Ngultrum",
"id": "BTN"
},
"BND": {
"currencyName": "Brunei Dollar",
"currencySymbol": "$",
"id": "BND"
},
"XAF": {
"currencyName": "Central African CFA Franc",
"id": "XAF"
},
"CUP": {
"currencyName": "Cuban Peso",
"currencySymbol": "$",
"id": "CUP"
},
"USD": {
"currencyName": "United States Dollar",
"currencySymbol": "$",
"id": "USD"
},
"FKP": {
"currencyName": "Falkland Islands Pound",
"currencySymbol": "£",
"id": "FKP"
},
"GIP": {
"currencyName": "Gibraltar Pound",
"currencySymbol": "£",
"id": "GIP"
},
"HUF": {
"currencyName": "Hungarian Forint",
"currencySymbol": "Ft",
"id": "HUF"
},
"IRR": {
"currencyName": "Iranian Rial",
"currencySymbol": "﷼",
"id": "IRR"
},
"JMD": {
"currencyName": "Jamaican Dollar",
"currencySymbol": "J$",
"id": "JMD"
},
"AUD": {
"currencyName": "Australian Dollar",
"currencySymbol": "$",
"id": "AUD"
},
"LAK": {
"currencyName": "Lao Kip",
"currencySymbol": "₭",
"id": "LAK"
},
"LYD": {
"currencyName": "Libyan Dinar",
"id": "LYD"
},
"MKD": {
"currencyName": "Macedonian Denar",
"currencySymbol": "ден",
"id": "MKD"
},
"XOF": {
"currencyName": "West African CFA Franc",
"id": "XOF"
},
"NZD": {
"currencyName": "New Zealand Dollar",
"currencySymbol": "$",
"id": "NZD"
},
"OMR": {
"currencyName": "Omani Rial",
"currencySymbol": "﷼",
"id": "OMR"
},
"PGK": {
"currencyName": "Papua New Guinean Kina",
"id": "PGK"
},
"RWF": {
"currencyName": "Rwandan Franc",
"id": "RWF"
},
"WST": {
"currencyName": "Samoan Tala",
"id": "WST"
},
"RSD": {
"currencyName": "Serbian Dinar",
"currencySymbol": "Дин.",
"id": "RSD"
},
"SEK": {
"currencyName": "Swedish Krona",
"currencySymbol": "kr",
"id": "SEK"
},
"TZS": {
"currencyName": "Tanzanian Shilling",
"currencySymbol": "TSh",
"id": "TZS"
},
"AMD": {
"currencyName": "Armenian Dram",
"id": "AMD"
},
"BSD": {
"currencyName": "Bahamian Dollar",
"currencySymbol": "$",
"id": "BSD"
},
"BAM": {
"currencyName": "Bosnia And Herzegovina Konvertibilna Marka",
"currencySymbol": "KM",
"id": "BAM"
},
"CVE": {
"currencyName": "Cape Verdean Escudo",
"id": "CVE"
},
"CNY": {
"currencyName": "Chinese Yuan",
"currencySymbol": "¥",
"id": "CNY"
},
"CRC": {
"currencyName": "Costa Rican Colon",
"currencySymbol": "₡",
"id": "CRC"
},
"CZK": {
"currencyName": "Czech Koruna",
"currencySymbol": "Kč",
"id": "CZK"
},
"ERN": {
"currencyName": "Eritrean Nakfa",
"id": "ERN"
},
"GEL": {
"currencyName": "Georgian Lari",
"id": "GEL"
},
"HTG": {
"currencyName": "Haitian Gourde",
"id": "HTG"
},
"INR": {
"currencyName": "Indian Rupee",
"currencySymbol": "₹",
"id": "INR"
},
"JOD": {
"currencyName": "Jordanian Dinar",
"id": "JOD"
},
"KRW": {
"currencyName": "South Korean Won",
"currencySymbol": "₩",
"id": "KRW"
},
"LBP": {
"currencyName": "Lebanese Lira",
"currencySymbol": "£",
"id": "LBP"
},
"MWK": {
"currencyName": "Malawian Kwacha",
"id": "MWK"
},
"MRO": {
"currencyName": "Mauritanian Ouguiya",
"id": "MRO"
},
"MZN": {
"currencyName": "Mozambican Metical",
"id": "MZN"
},
"ANG": {
"currencyName": "Netherlands Antillean Gulden",
"currencySymbol": "ƒ",
"id": "ANG"
},
"PEN": {
"currencyName": "Peruvian Nuevo Sol",
"currencySymbol": "S/.",
"id": "PEN"
},
"QAR": {
"currencyName": "Qatari Riyal",
"currencySymbol": "﷼",
"id": "QAR"
},
"STD": {
"currencyName": "Sao Tome And Principe Dobra",
"id": "STD"
},
"SLL": {
"currencyName": "Sierra Leonean Leone",
"id": "SLL"
},
"SOS": {
"currencyName": "Somali Shilling",
"currencySymbol": "S",
"id": "SOS"
},
"SDG": {
"currencyName": "Sudanese Pound",
"id": "SDG"
},
"SYP": {
"currencyName": "Syrian Pound",
"currencySymbol": "£",
"id": "SYP"
},
"AOA": {
"currencyName": "Angolan Kwanza",
"id": "AOA"
},
"AWG": {
"currencyName": "Aruban Florin",
"currencySymbol": "ƒ",
"id": "AWG"
},
"BHD": {
"currencyName": "Bahraini Dinar",
"id": "BHD"
},
"BZD": {
"currencyName": "Belize Dollar",
"currencySymbol": "BZ$",
"id": "BZD"
},
"BWP": {
"currencyName": "Botswana Pula",
"currencySymbol": "P",
"id": "BWP"
},
"BIF": {
"currencyName": "Burundi Franc",
"id": "BIF"
},
"KYD": {
"currencyName": "Cayman Islands Dollar",
"currencySymbol": "$",
"id": "KYD"
},
"COP": {
"currencyName": "Colombian Peso",
"currencySymbol": "$",
"id": "COP"
},
"DKK": {
"currencyName": "Danish Krone",
"currencySymbol": "kr",
"id": "DKK"
},
"GTQ": {
"currencyName": "Guatemalan Quetzal",
"currencySymbol": "Q",
"id": "GTQ"
},
"HNL": {
"currencyName": "Honduran Lempira",
"currencySymbol": "L",
"id": "HNL"
},
"IDR": {
"currencyName": "Indonesian Rupiah",
"currencySymbol": "Rp",
"id": "IDR"
},
"ILS": {
"currencyName": "Israeli New Sheqel",
"currencySymbol": "₪",
"id": "ILS"
},
"KZT": {
"currencyName": "Kazakhstani Tenge",
"currencySymbol": "лв",
"id": "KZT"
},
"KWD": {
"currencyName": "Kuwaiti Dinar",
"id": "KWD"
},
"LSL": {
"currencyName": "Lesotho Loti",
"id": "LSL"
},
"MYR": {
"currencyName": "Malaysian Ringgit",
"currencySymbol": "RM",
"id": "MYR"
},
"MUR": {
"currencyName": "Mauritian Rupee",
"currencySymbol": "₨",
"id": "MUR"
},
"MNT": {
"currencyName": "Mongolian Tugrik",
"currencySymbol": "₮",
"id": "MNT"
},
"MMK": {
"currencyName": "Myanma Kyat",
"id": "MMK"
},
"NGN": {
"currencyName": "Nigerian Naira",
"currencySymbol": "₦",
"id": "NGN"
},
"PAB": {
"currencyName": "Panamanian Balboa",
"currencySymbol": "B/.",
"id": "PAB"
},
"PHP": {
"currencyName": "Philippine Peso",
"currencySymbol": "₱",
"id": "PHP"
},
"RON": {
"currencyName": "Romanian Leu",
"currencySymbol": "lei",
"id": "RON"
},
"SAR": {
"currencyName": "Saudi Riyal",
"currencySymbol": "﷼",
"id": "SAR"
},
"SGD": {
"currencyName": "Singapore Dollar",
"currencySymbol": "$",
"id": "SGD"
},
"ZAR": {
"currencyName": "South African Rand",
"currencySymbol": "R",
"id": "ZAR"
},
"SRD": {
"currencyName": "Surinamese Dollar",
"currencySymbol": "$",
"id": "SRD"
},
"TWD": {
"currencyName": "New Taiwan Dollar",
"currencySymbol": "NT$",
"id": "TWD"
},
"TOP": {
"currencyName": "Paanga",
"id": "TOP"
},
"VEF": {
"currencyName": "Venezuelan Bolivar",
"id": "VEF"
},
"DZD": {
"currencyName": "Algerian Dinar",
"id": "DZD"
},
"ARS": {
"currencyName": "Argentine Peso",
"currencySymbol": "$",
"id": "ARS"
},
"AZN": {
"currencyName": "Azerbaijani Manat",
"currencySymbol": "ман",
"id": "AZN"
},
"BYR": {
"currencyName": "Belarusian Ruble",
"currencySymbol": "p.",
"id": "BYR"
},
"BOB": {
"currencyName": "Bolivian Boliviano",
"currencySymbol": "$b",
"id": "BOB"
},
"BGN": {
"currencyName": "Bulgarian Lev",
"currencySymbol": "лв",
"id": "BGN"
},
"CAD": {
"currencyName": "Canadian Dollar",
"currencySymbol": "$",
"id": "CAD"
},
"CLP": {
"currencyName": "Chilean Peso",
"currencySymbol": "$",
"id": "CLP"
},
"CDF": {
"currencyName": "Congolese Franc",
"id": "CDF"
},
"DOP": {
"currencyName": "Dominican Peso",
"currencySymbol": "RD$",
"id": "DOP"
},
"FJD": {
"currencyName": "Fijian Dollar",
"currencySymbol": "$",
"id": "FJD"
},
"GMD": {
"currencyName": "Gambian Dalasi",
"id": "GMD"
},
"GYD": {
"currencyName": "Guyanese Dollar",
"currencySymbol": "$",
"id": "GYD"
},
"ISK": {
"currencyName": "Icelandic Króna",
"currencySymbol": "kr",
"id": "ISK"
},
"IQD": {
"currencyName": "Iraqi Dinar",
"id": "IQD"
},
"JPY": {
"currencyName": "Japanese Yen",
"currencySymbol": "¥",
"id": "JPY"
},
"KPW": {
"currencyName": "North Korean Won",
"currencySymbol": "₩",
"id": "KPW"
},
"LVL": {
"currencyName": "Latvian Lats",
"currencySymbol": "Ls",
"id": "LVL"
},
"CHF": {
"currencyName": "Swiss Franc",
"currencySymbol": "Fr.",
"id": "CHF"
},
"MGA": {
"currencyName": "Malagasy Ariary",
"id": "MGA"
},
"MDL": {
"currencyName": "Moldovan Leu",
"id": "MDL"
},
"MAD": {
"currencyName": "Moroccan Dirham",
"id": "MAD"
},
"NPR": {
"currencyName": "Nepalese Rupee",
"currencySymbol": "₨",
"id": "NPR"
},
"NIO": {
"currencyName": "Nicaraguan Cordoba",
"currencySymbol": "C$",
"id": "NIO"
},
"PKR": {
"currencyName": "Pakistani Rupee",
"currencySymbol": "₨",
"id": "PKR"
},
"PYG": {
"currencyName": "Paraguayan Guarani",
"currencySymbol": "Gs",
"id": "PYG"
},
"SHP": {
"currencyName": "Saint Helena Pound",
"currencySymbol": "£",
"id": "SHP"
},
"SCR": {
"currencyName": "Seychellois Rupee",
"currencySymbol": "₨",
"id": "SCR"
},
"SBD": {
"currencyName": "Solomon Islands Dollar",
"currencySymbol": "$",
"id": "SBD"
},
"LKR": {
"currencyName": "Sri Lankan Rupee",
"currencySymbol": "₨",
"id": "LKR"
},
"THB": {
"currencyName": "Thai Baht",
"currencySymbol": "฿",
"id": "THB"
},
"TRY": {
"currencyName": "Turkish New Lira",
"id": "TRY"
},
"AED": {
"currencyName": "UAE Dirham",
"id": "AED"
},
"VUV": {
"currencyName": "Vanuatu Vatu",
"id": "VUV"
},
"YER": {
"currencyName": "Yemeni Rial",
"currencySymbol": "﷼",
"id": "YER"
},
"AFN": {
"currencyName": "Afghan Afghani",
"currencySymbol": "؋",
"id": "AFN"
},
"BDT": {
"currencyName": "Bangladeshi Taka",
"id": "BDT"
},
"BRL": {
"currencyName": "Brazilian Real",
"currencySymbol": "R$",
"id": "BRL"
},
"KHR": {
"currencyName": "Cambodian Riel",
"currencySymbol": "៛",
"id": "KHR"
},
"KMF": {
"currencyName": "Comorian Franc",
"id": "KMF"
},
"HRK": {
"currencyName": "Croatian Kuna",
"currencySymbol": "kn",
"id": "HRK"
},
"DJF": {
"currencyName": "Djiboutian Franc",
"id": "DJF"
},
"EGP": {
"currencyName": "Egyptian Pound",
"currencySymbol": "£",
"id": "EGP"
},
"ETB": {
"currencyName": "Ethiopian Birr",
"id": "ETB"
},
"XPF": {
"currencyName": "CFP Franc",
"id": "XPF"
},
"GHS": {
"currencyName": "Ghanaian Cedi",
"id": "GHS"
},
"GNF": {
"currencyName": "Guinean Franc",
"id": "GNF"
},
"HKD": {
"currencyName": "Hong Kong Dollar",
"currencySymbol": "$",
"id": "HKD"
},
"XDR": {
"currencyName": "Special Drawing Rights",
"id": "XDR"
},
"KES": {
"currencyName": "Kenyan Shilling",
"currencySymbol": "KSh",
"id": "KES"
},
"KGS": {
"currencyName": "Kyrgyzstani Som",
"currencySymbol": "лв",
"id": "KGS"
},
"LRD": {
"currencyName": "Liberian Dollar",
"currencySymbol": "$",
"id": "LRD"
},
"MOP": {
"currencyName": "Macanese Pataca",
"id": "MOP"
},
"MVR": {
"currencyName": "Maldivian Rufiyaa",
"id": "MVR"
},
"MXN": {
"currencyName": "Mexican Peso",
"currencySymbol": "$",
"id": "MXN"
},
"NAD": {
"currencyName": "Namibian Dollar",
"currencySymbol": "$",
"id": "NAD"
},
"NOK": {
"currencyName": "Norwegian Krone",
"currencySymbol": "kr",
"id": "NOK"
},
"PLN": {
"currencyName": "Polish Zloty",
"currencySymbol": "zł",
"id": "PLN"
},
"RUB": {
"currencyName": "Russian Ruble",
"currencySymbol": "руб",
"id": "RUB"
},
"SZL": {
"currencyName": "Swazi Lilangeni",
"id": "SZL"
},
"TJS": {
"currencyName": "Tajikistani Somoni",
"id": "TJS"
},
"TTD": {
"currencyName": "Trinidad and Tobago Dollar",
"currencySymbol": "TT$",
"id": "TTD"
},
"UGX": {
"currencyName": "Ugandan Shilling",
"currencySymbol": "USh",
"id": "UGX"
},
"UYU": {
"currencyName": "Uruguayan Peso",
"currencySymbol": "$U",
"id": "UYU"
},
"VND": {
"currencyName": "Vietnamese Dong",
"currencySymbol": "₫",
"id": "VND"
},
"TND": {
"currencyName": "Tunisian Dinar",
"id": "TND"
},
"UAH": {
"currencyName": "Ukrainian Hryvnia",
"currencySymbol": "₴",
"id": "UAH"
},
"UZS": {
"currencyName": "Uzbekistani Som",
"currencySymbol": "лв",
"id": "UZS"
},
"TMT": {
"currencyName": "Turkmenistan Manat",
"id": "TMT"
},
"GBP": {
"currencyName": "British Pound",
"currencySymbol": "£",
"id": "GBP"
},
"ZMW": {
"currencyName": "Zambian Kwacha",
"id": "ZMW"
},
"BTC": {
"currencyName": "Bitcoin",
"currencySymbol": "BTC",
"id": "BTC"
},
"BYN": {
"currencyName": "New Belarusian Ruble",
"currencySymbol": "p.",
"id": "BYN"
},
"BMD": {
"currencyName": "Bermudan Dollar",
"id": "BMD"
},
"GGP": {
"currencyName": "Guernsey Pound",
"id": "GGP"
},
"CLF": {
"currencyName": "Chilean Unit Of Account",
"id": "CLF"
},
"CUC": {
"currencyName": "Cuban Convertible Peso",
"id": "CUC"
},
"IMP": {
"currencyName": "Manx pound",
"id": "IMP"
},
"JEP": {
"currencyName": "Jersey Pound",
"id": "JEP"
},
"SVC": {
"currencyName": "Salvadoran Colón",
"id": "SVC"
},
"ZMK": {
"currencyName": "Old Zambian Kwacha",
"id": "ZMK"
},
"XAG": {
"currencyName": "Silver (troy ounce)",
"id": "XAG"
},
"ZWL": {
"currencyName": "Zimbabwean Dollar",
"id": "ZWL"
}
},
"note": "Please don't use this sample API key in your environment. Doing so will get you banned. You may get your free API key at free.currencyconverterapi.com"
}
}
data对象key-value配对id在data['results']
key（例如'BTN'）和value（{'currencyName': 'Bhutanese Ngultrum', 'id': 'BTN'}）以获取idkey各货币也是id
'BTN': {'currencyName': 'Bhutanese Ngultrum', 'id': 'BTN'}idpd.json_normalize(v) for v in data['results'].values() 为每个创建一个数据框 {'currencyName': 'Albanian Lek', 'currencySymbol': 'Lek', 'id': 'ALL'}pd.concat(...) 将所有数据帧合并为一个数据帧。import pandas as pd
# load all the currencies into the dataframe
df = pd.concat(pd.json_normalize(v) for v in data['results'].values()).reset_index(drop=True)
# display df
currencyName currencySymbol id
0 Albanian Lek Lek ALL
1 East Caribbean Dollar $ XCD
2 Euro € EUR
3 Barbadian Dollar $ BBD
4 Bhutanese Ngultrum NaN BTN
# save all the data to csv
df.to_csv('currencies.csv', index=False)
# get a list of id
ids = df.id.tolist()
id值id值的列表。ids = list()
for v in data['results'].values():
ids.append(v['id'])
# as a list-comprehension
ids = [v['id'] for v in data['results'].values()]
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