Python:将多个变量写入文件
我对Python相当陌生,我已经编写了一个scraper,它可以按照我需要的方式打印数据,但是我在将数据写入文件时遇到了问题。我需要它看起来完全相同的方式,并在同一顺序,因为它是在空闲打印Python:将多个变量写入文件,python,beautifulsoup,python-requests,Python,Beautifulsoup,Python Requests,我对Python相当陌生,我已经编写了一个scraper,它可以按照我需要的方式打印数据,但是我在将数据写入文件时遇到了问题。我需要它看起来完全相同的方式,并在同一顺序,因为它是在空闲打印 import requests import re from bs4 import BeautifulSoup year_entry = raw_input("Enter year: ") week_entry = raw_input("Enter week number: ") week_link =
import requests
import re
from bs4 import BeautifulSoup
year_entry = raw_input("Enter year: ")
week_entry = raw_input("Enter week number: ")
week_link = requests.get("http://sports.yahoo.com/nfl/scoreboard/?week=" + week_entry + "&phase=2&season=" + year_entry)
page_content = BeautifulSoup(week_link.content)
a_links = page_content.find_all('tr', {'class': 'game link'})
for link in a_links:
r = 'http://www.sports.yahoo.com' + str(link.attrs['data-url'])
r_get = requests.get(r)
soup = BeautifulSoup(r_get.content)
stats = soup.find_all("td", {'class':'stat-value'})
teams = soup.find_all("th", {'class':'stat-value'})
scores = soup.find_all('dd', {"class": 'score'})
try:
game_score = scores[-1]
game_score = game_score.text
x = game_score.split(" ")
away_score = x[1]
home_score = x[4]
home_team = teams[1]
away_team = teams[0]
away_team_stats = stats[0::2]
home_team_stats = stats[1::2]
print away_team.text + ',' + away_score + ',',
for stats in away_team_stats:
print stats.text + ',',
print '\n'
print home_team.text + ',' + home_score +',',
for stats in home_team_stats:
print stats.text + ',',
print '\n'
except:
pass
我完全搞不懂如何让它以空闲打印的方式打印到txt文件。该代码只在NFL赛季的最后几周运行。因此,如果您测试代码,我建议年份=2014,周=12(或之前)
谢谢
JT要写入文件,需要将该行构建为字符串,然后将该行写入文件 您可以使用以下内容:
# Open/create a file for your output
with open('my_output_file.csv', 'wb') as csv_out:
...
# Your BeautifulSoup code and parsing goes here
...
# Then build up your output strings
for link in a_links:
away_line = ",".join([away_team.text, away_score])
for stats in away_team_stats:
away_line += [stats.text]
home_line = ",".join(home_team.text, home_score])
for stats in home_team_stats:
home_line += [stats.text]
# Write your output strings to the file
csv_out.write(away_line + '\n')
csv_out.write(home_line + '\n')
这是一个快速而肮脏的解决办法。为了正确地完成这项工作,您可能需要从输出的结构中查看
csv
模块(),我同意Jamie的观点,使用csv是一种合乎逻辑的选择
但由于您使用的是Python2,所以可以使用另一种形式的print语句打印到文件中
从
print还有一个扩展表单,由
上面描述的语法。此表格有时称为“打印”
在这种形式中,>>后面的第一个表达式必须
计算为“类似文件”的对象,特别是具有
如上所述的write()方法。通过这种扩展形式
后续表达式将打印到此文件对象。如果第一个
表达式的计算结果为无,则sys.stdout用作
输出
例如
但是,Python 3不支持这种语法,因此我想使用它可能不是一个好主意。:)FWIW,在写入文件时,我通常在代码中使用file write()方法,但对于错误消息,我倾向于使用print>>sys.stderr
outfile = open("myfile.txt", "w")
print >>outfile, "Hello, world"
outfile.close()