Python爬虫類練習の株価データ
Pythonバージョン3.7
これに基づいて、2つの最適化を行うことができます:1.直接設定符号化方式2.進捗バーの表示を増やす
コードを次のように変更します.
import requests
import re
from bs4 import BeautifulSoup
import traceback
def getHTMLText(url):
try:
r = requests.get(url, timeout = 30)
r.raise_for_status()
r.encoding = r.apparent_encoding
return r.text
except:
return ""
def getStockList(lst, stockURL):
html = getHTMLText(stockURL)
soup = BeautifulSoup(html, 'html.parser')
a = soup.find_all('a')
for i in a:
try:
href = i.attrs['href']
lst.append(re.findall(r'[s][hz]\d{6}', href)[0])
except:
continue
def getStockInfo(lst, stockURL, fpath):
for stock in lst:
url = stockURL + stock + '.html'
html = getHTMLText(url)
try:
if html == "":
continue
infoDict = {}
soup = BeautifulSoup(html, 'html.parser')
stockInfo = soup.find('div', attrs = {'class':'stock-bets'})
name = stockInfo.find_all(attrs = {'class':'bets-name'})[0]
infoDict.update({' ':name.text.split()[0]})
keyList = stockInfo.find_all('dt')
valueList = stockInfo.find_all('dd')
for i in range(len(keyList)):
key = keyList[i].text
val = valueList[i].text
infoDict[key] = val
with open(fpath, 'a', encoding = 'utf-8') as f:
f.write(str(infoDict) + '
')
except:
traceback.print_exc()
continue
def main():
stock_list_url = 'http://quote.eastmoney.com/stocklist.html'
stock_info_url = 'https://gupiao.baidu.com/stock/'
output_file = 'D://BaiduStockInfo.txt'
slist = []
getStockList(slist, stock_list_url)
getStockInfo(slist, stock_info_url, output_file)
これに基づいて、2つの最適化を行うことができます:1.直接設定符号化方式2.進捗バーの表示を増やす
コードを次のように変更します.
def getHTMLText(url, code = 'utf-8'):
try:
r = requests.get(url, timeout = 30)
r.raise_for_status()
r.encoding = code
return r.text
except:
return ""
def getStockList(lst, stockURL):
html = getHTMLText(stockURL, 'GB2312')
soup = BeautifulSoup(html, 'html.parser')
a = soup.find_all('a')
for i in a:
try:
href = i.attrs['href']
lst.append(re.findall(r'[s][hz]\d{6}', href)[0])
except:
continue
def getStockInfo(lst, stockURL, fpath):
count = 0
for stock in lst:
url = stockURL + stock + '.html'
html = getHTMLText(url)
try:
if html == "":
continue
infoDict = {}
soup = BeautifulSoup(html, 'html.parser')
stockInfo = soup.find('div', attrs = {'class':'stock-bets'})
name = stockInfo.find_all(attrs = {'class':'bets-name'})[0]
infoDict.update({' ':name.text.split()[0]})
keyList = stockInfo.find_all('dt')
valueList = stockInfo.find_all('dd')
for i in range(len(keyList)):
key = keyList[i].text
val = valueList[i].text
infoDict[key] = val
with open(fpath, 'a', encoding = 'utf-8') as f:
f.write(str(infoDict) + '
')
count = count + 1
print('\r :{:.2f}%'.format(count*100/len(lst)), end = '')
except:
traceback.print_exc()
count = count + 1
print('\r :{:.2f}%'.format(count*100/len(lst)), end = '')
continue