Question

我正在为我的朋友和我创建一个互动成绩簿环境。到目前为止，我已经能够使用我的脚本，下载我的成绩，以及过滤哪些信息很重要。我的脚本如下：

import requests
from bs4 import BeautifulSoup

#   Connect to D2L
s = requests.Session()
payload = {
    'd2l_referrer': '',
    'target': '/d2l/lp/ouHome/loginHome.d2l?isMobile=1',
    'loginPath': '/d2l/m/login',
    'userName': 'USERNAME',
    'password': 'PASSWORD'
}
r = s.post('http://learn.ou.edu/d2l/lp/auth/login/login.d2l', data=payload)
status = r.status_code
if status == 200:
    print "Connection Successful"
else:
    print "Unable to connect"

#   Grade Collection
print "     Getting CLASS grades..."
page = s.get("GRADEBOOK URL")
soup = BeautifulSoup(page.content)
grade = BeautifulSoup(str(soup.find_all('label')))
for strings in grade.stripped_strings:
    if "/" in strings:
        print strings
print "Complete"

脚本返回：

Connection Successful
     Getting CLASS grades...
50 / 50
40 / 50
40 / 50
45 / 50
50 / 50
Complete

此时，我希望程序在＆＃34; /＆＃34;两侧的数字总和？并划分总数，从而给出＆＃34;平均值＆＃34;。防爆。 ((50+40+40+45+50)/(50+50+50+50+50)) = 0.9或（90%）。

Answer 1

您必须提取成绩信息;你没有说明数字的含义，所以我猜它们被称为passed和total：

passed = totals = 0

for strings in grade.stripped_strings:
    if "/" in strings:
        print strings
        pass_, total = map(float, strings.split('/'))
        passed += pass_
        totals += total

print "The average is: {:.1%}".format(passed / totals)

演示：

>>> lines = '''\
... 50 / 50
... 40 / 50
... 40 / 50
... 45 / 50
... 50 / 50
... '''
>>> for strings in lines.splitlines():
...     if "/" in strings:
...         print strings
...         pass_, total = map(float, strings.split('/'))
...         passed += pass_
...         totals += total
... 
50 / 50
40 / 50
40 / 50
45 / 50
50 / 50
>>> print "The average is: {:.1%}".format(passed / totals)
The average is: 90.0%

.1%格式指令将浮点数格式化为1个小数点的百分比（乘以100并添加%字符）。

分析繁琐的信息

1 个答案: