import requests
from bs4 import BeautifulSoup

url='http://www.baidu.com/s'
params={
    'wd':'Python教程'
}
request = requests.get(url, params=params)
data = BeautifulSoup(request.text, 'html.parser')
print(data)

# //*[@id="2"]/div/div[1]/div[1]/h3/a
# //*[@id="3"]/div/div[1]/div[1]/h3/a