我正在尝试制作一个应用程序，可以抓取我最喜欢的十大空间相关股票价格。
- 我的代码遇到了一些问题，而且我是抓取的新手。
- 一旦我让它工作，我想把它放到 csv 文件中
- 并用它制作条形图，我希望得到一些帮助和建议。
- 我也在蟒蛇中这样做：
我的代码 ：
from bs4 import BeautifulSoup
#grequests is a unique library that allows you to use many urls with ease
#must install qrequest in annacode use : conda install -c conda-forge grequests
#if you know a better way to do this, please let me know
import grequests
#scraping my top ten favorite space companies, attempted to pick companies with pure play interest in space
urls = ['https://finance.yahoo.com/quote/GILT/', 'https://finance.yahoo.com/quote/LORL?p=LORL&.tsrc=fin-srch', 'https://finance.yahoo.com/quote/I?p=I&.tsrc=fin-srch' , 'https://finance.yahoo.com/quote/VSAT?p=VSAT&.tsrc=fin-srch', 'https://finance.yahoo.com/quote/RTN?p=RTN&.tsrc=fin-srch', 'https://finance.yahoo.com/quote/UTX?ltr=1', 'https://finance.yahoo.com/quote/TDY?ltr=1', 'https://finance.yahoo.com/quote/ORBC?ltr=1', 'https://finance.yahoo.com/quote/SPCE?p=SPCE&.tsrc=fin-srch', 'https://finance.yahoo.com/quote/BA?p=BA&.tsrc=fin-srch',]
unsent_request = (grequests.get(url) for url in urls)
results = grequests.map(unsent_request)
def parsePrice():
soup = BeautifulSoup(r.text,"html")
price=soup.find_all('div',{'class':'Trsdu(0.3s) Fw(b) Fz(36px) Mb(-4px) D(ib)" data-reactid="52">4.1500'})[0].find('span').text
return price
#Trying to figure out how to add this
# Random delay
duration = random.uniform(1, 4)
print('Random delay for %.2f seconds' % duration)
time.sleep(duration)
print('Scraping website for', urls)
urls = hrefs[stock]
soup = BeautifulSoup(page.text, 'html.parser')
在此之后，我收到此错误：
File "<ipython-input-17-834b9d6c20e5>", line 3
duration = random.uniform(1, 4)
^
IndentationError: unexpected indent
while True:
print('current stock price: '+str(parsePrice()))
#add to csv file
df_indu = pd.DataFrame(
L['Top Ten Space Stocks'],
columns=['stock name', 'stock price', 'date of listing'])
df_indu.to_csv('spacestocks.csv', index=False, sep='|')
所以这是我到目前为止的整个程序。我试图添加时间延迟并抓取所有这些股票的股票价格以放置在 csv 文件中以绘制图表......谢谢
代码在parsePrice()函数定义处缩进。在函数结束时，您声明return price从而结束函数定义。现在，您的以下代码不应再缩进。这就是为什么您在此之后的所有内容都会遇到意外缩进错误的原因。