使用Python和Selenium的航班价格检查器
Python是一种具有许多扩展库和框架的脚本语言。它用于计算机科学的各个领域，例如 Web 开发和数据科学。此外， Python可用于自动化一些从长远来看非常有用的小任务。
本文中提到的Python脚本将使用selenium从 paytm.com 获取价格，如果它小于或等于您设置的金额（您准备好花费），则会向所需的电子邮件发送通知 -关于降价的信息。
用于发送通知的电子邮件 ID 不应使用个人密码，因为它需要双重身份验证并且操作将失败。相反，应该设置一个不同的密码，该密码可由脚本和将来可能开发的许多其他不同应用程序访问。
注意：发送该电子邮件所需的密码可以通过此链接设置：Google App Passwords
执行
导入所有需要的库
Selenium执行网站的自动化
from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.chrome.options import Options
from selenium.common.exceptions import TimeoutException
from selenium.webdriver.common.keys import Keys
STMPLIB 用于通过电子邮件发送通知
import smtplib
提取两个选定日期之间的航班价格
# Choose the two dates
# in this format
x = "2020-03-10"
y = "2020-03-16"
a = int(x[8:10])
b = int(y[8:10])
if a > b:
m = a - b
t = b
else:
m = b - a
t = a
print(t)
low_price = ""
url_final = 'https://paytm.com/flights'
data = {}
for i in range(t, t + m+1):
url = 'https://paytm.com/flights/flightSearch/BBI-\
Bhubaneshwar/DEL-Delhi/1/0/0/E/2020-03-'+str(i)
# Locations can be changed on
# the above statement
print(url)
date = "2019-12-" + str(i)
# enables the script to run properly without
# opening the chrome browser.
chrome_options = Options()
chrome_options.add_argument("--disable-gpu")
chrome_options.add_argument("--headless")
driver = webdriver.Chrome(executable_path = '/path/to/chromedriver',
options=chrome_options)
driver.implicitly_wait(20)
driver.get(url)
g = driver.find_element_by_xpath("//div[@class='_2gMo']")
price = g.text
x = price[0]
y = price[2:5]
z = str(x)+str(y)
p = int(z)
print(p)
prices=[]
if p <= 2000:
data[date] = p
for i in data:
low_price += str(i) + ": Rs." + str(data[i]) + "\n"
print(low_price)
如果有廉价航班可用，则使用 SMTP 通过电子邮件发送通知
if len(data) != 0:
dp = 2000
server = smtplib.SMTP('smtp.gmail.com',587)
server.ehlo()
server.starttls()
server.ehlo()
server.login('your_email_id','your_password')
subject = "Flight price for BBI-DEL has fallen\
below Rs. " + str(dp)
body = "Hey Akash! \n The price of BBI-DEL on PayTm \
has fallen down below Rs." + str(dp) + ".\n So,\
hurry up & check: " + url_final+"\n\n\n The prices of\
flight below Rs.2000 for the following days are\
:\n\n" + low_price
msg = f"Subject: {subject} \n\n {body}"
server.sendmail(
# email ids where you want to
# send the notification
'email_id_1',
'email_id_2',
msg
)
print("HEY,EMAIL HAS BEEN SENT SUCCESSFULLY.")
server.quit()
完整代码：
from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.chrome.options import Options
from selenium.common.exceptions import TimeoutException
from selenium.webdriver.common.keys import Keys
import smtplib
# Choose the two dates
# in this format
x = "2020-03-10"
y = "2020-03-16"
a = int(x[8:10])
b = int(y[8:10])
if a > b:
m = a - b
t = b
else:
m = b - a
t = a
print(t)
low_price = ""
url_final = 'https://paytm.com/flights'
data = {}
for i in range(t, t + m+1):
url = 'https://paytm.com/flights/flightSearch/BBI-\
Bhubaneshwar/DEL-Delhi/1/0/0/E/2020-03-'+str(i)
# Locations can be changed on
# the above statement
print(url)
date = "2019-12-" + str(i)
# enables the script to run properly without
# opening the chrome browser.
chrome_options = Options()
chrome_options.add_argument("--disable-gpu")
chrome_options.add_argument("--headless")
driver = webdriver.Chrome(executable_path = '/path/to/chromedriver',
options=chrome_options)
driver.implicitly_wait(20)
driver.get(url)
g = driver.find_element_by_xpath("//div[@class='_2gMo']")
price = g.text
x = price[0]
y = price[2:5]
z = str(x)+str(y)
p = int(z)
print(p)
prices=[]
if p <= 2000:
data[date] = p
for i in data:
low_price += str(i) + ": Rs." + str(data[i]) + "\n"
print(low_price)
if len(data) != 0:
dp = 2000
server = smtplib.SMTP('smtp.gmail.com',587)
server.ehlo()
server.starttls()
server.ehlo()
server.login('your_email_id','your_password')
subject = "Flight price for BBI-DEL has fallen\
below Rs. " + str(dp)
body = "Hey Akash! \n The price of BBI-DEL on PayTm \
has fallen down below Rs." + str(dp) + ".\n So,\
hurry up & check: " + url_final+"\n\n\n The prices of\
flight below Rs.2000 for the following days are\
:\n\n" + low_price
msg = f"Subject: {subject} \n\n {body}"
server.sendmail(
# email ids where you want to
# send the notification
'email_id_1',
'email_id_2',
msg
)
print("HEY,EMAIL HAS BEEN SENT SUCCESSFULLY.")
server.quit()
输出：
