基于requests爬取比特币信息并绘制价格走势图

""" 作者：Want595 微信号：Want_595 公众号：Want595 """ import requests import datetime import pandas as pd import matplotlib.pyplot as plt plt.rcParams['font.sans-serif'] = ['SimHei'] # 指定默认字体 plt.rcParams['axes.unicode_minus'] = False # 解决保存图像是负号'-'显示为方块的问题 def hourly_price_historical(symbol, comparison_symbol, limit, aggregate, exchange=''): url = 'https://min-api.cryptocompare.com/data/histohour?fsym={}&tsym={}&limit={}&aggregate={}' \ .format(symbol.upper(), comparison_symbol.upper(), limit, aggregate) if exchange: url += '&e={}'.format(exchange) print(url) page = requests.get(url) data = page.json()['Data'] df = pd.DataFrame(data) df['timestamp'] = [datetime.datetime.fromtimestamp(d) for d in df.time] return df def plotchart(axis, df, symbol, comparison_symbol): axis.plot(df.timestamp, df.close) df1 = hourly_price_historical('BTC', 'USD', 2000, 1) df2 = hourly_price_historical('ETH', 'USD', 2000, 1) f, axarr = plt.subplots(2) plotchart(axarr[0], df1, 'BTC', 'USD') plotchart(axarr[1], df2, 'ETH', 'USD') plt.show()