python 获取页面表格数据存放到csv中的方法

2020-01-04 13:41:46

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获取单独一个table，代码如下：

#!/usr/bin/env python3# _*_ coding=utf-8 _*_import csvfrom urllib.request import urlopenfrom bs4 import BeautifulSoupfrom urllib.request import HTTPErrortry:  html = urlopen("http://en.wikipedia.org/wiki/Comparison_of_text_editors")except HTTPError as e:  print("not found")bsObj = BeautifulSoup(html,"html.parser")table = bsObj.findAll("table",{"class":"wikitable"})[0]if table is None:  print("no table");  exit(1)rows = table.findAll("tr")csvFile = open("editors.csv",'wt',newline='',encoding='utf-8')writer = csv.writer(csvFile)try:  for row in rows:    csvRow = []    for cell in row.findAll(['td','th']):      csvRow.append(cell.get_text())    writer.writerow(csvRow)finally:  csvFile.close()

获取所有table，代码如下：

#!/usr/bin/env python3# _*_ coding=utf-8 _*_import csvfrom urllib.request import urlopenfrom bs4 import BeautifulSoupfrom urllib.request import HTTPErrortry:  html = urlopen("http://en.wikipedia.org/wiki/Comparison_of_text_editors")except HTTPError as e:  print("not found")bsObj = BeautifulSoup(html,"html.parser")tables = bsObj.findAll("table",{"class":"wikitable"})if tables is None:  print("no table");  exit(1)i = 1for table in tables:  fileName = "table%s.csv" % i  rows = table.findAll("tr")  csvFile = open(fileName,'wt',newline='',encoding='utf-8')  writer = csv.writer(csvFile)  try:    for row in rows:      csvRow = []      for cell in row.findAll(['td','th']):        csvRow.append(cell.get_text())      writer.writerow(csvRow)  finally:    csvFile.close()  i += 1

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