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    Python批量获取基金数据的方法步骤

    作者:径流系数 时间:2021-07-17 18:47

    20年初准备投资基金,想爬取基金的业绩数据。

    20年基金迎来了爆发式增长,现把代码开源以供参考。

    本代码只能实现初步汇总,输出csv文件来保存基金的单位&累计净值,后期仍需要结合统计方法来筛选优质基金。

    参考了网上的部分代码,实在不记得出处了,侵删。

    import requests
    import time
    import execjs
    start = time.perf_counter()
    
    # 获取所有基金编号
    def getAllCode():
      url = 'http://fund.eastmoney.com/js/fundcode_search.js'
      content = requests.get(url)
      jsContent = execjs.compile(content.text)
      rawData = jsContent.eval('r')
      allCode = []
      for code in rawData:
        allCode.append(code[0])
      return allCode
    
    allCode = getAllCode()
    del allCode[100:len(allCode)]
    # print(len(allCode))
    
    # 获取基金编号为fscode的所有信息
    def getUrl(fscode):
      head = 'http://fund.eastmoney.com/pingzhongdata/'
      tail = '.js?v=' + time.strftime("%Y%m%d%H%M%S", time.localtime())
      return head + fscode + tail
    
    # 获取净值
    def getWorth(fscode):
      content = requests.get(getUrl(fscode))
      jsContent = execjs.compile(content.text)
    
      name = jsContent.eval('fS_name')
      code = jsContent.eval('fS_code')
      # 单位净值走势
      netWorthTrend = jsContent.eval('Data_netWorthTrend')
      # 累计净值走势
      ACWorthTrend = jsContent.eval('Data_ACWorthTrend')
      # 近一年收益率
      Profit_12month = jsContent.eval('syl_1n')
    
      netWorth = []
      ACWorth = []
    
      for dayWorth in netWorthTrend[::-1]:
        netWorth.append(dayWorth['y'])
    
      for dayACWorth in ACWorthTrend[::-1]:
        ACWorth.append(dayACWorth[1])
      print(name, code)
      return netWorth, ACWorth
    
    netWorthFile = open('./netWorth.csv', 'w')
    ACWorthFile = open('./ACWorth.csv', 'w')
    
    for code in allCode:
      try:
        netWorth, ACWorth = getWorth(code)
      except:
        continue
      if len(netWorth) <= 0 or len(ACWorth) < 0:
        # print(code + " empty data")
        continue
      netWorthFile.write("\'" + code + "\',")
      netWorthFile.write(",".join(list(map(str, netWorth))))
      netWorthFile.write("\n")
    
      ACWorthFile.write("\'" + code + "\',")
      ACWorthFile.write(",".join(list(map(str, ACWorth))))
      ACWorthFile.write("\n")
      # print("write " + code + " success.")
    
    netWorthFile.close()
    ACWorthFile.close()
    end = time.perf_counter()
    print('Running time: %s seconds' %(end-start))
    
    
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