正则表达式：以关键字结尾的句子以句子空白 Output 结尾

Question

If I was to print "m," there would be a result that begins with "Histology" and ends with a period. Despite that, the output shows up empty.

from bs4 import BeautifulSoup
from googlesearch import search 
import requests
from goose3 import Goose
def search_google(query):
    parent_=[]  
    for j in search(query, tld="co.in", num=10, stop=5, pause=2):
        child_=[]
        link_=j
        site_name=link_.split("/")[2]
        child_.append(site_name)
        child_.append(link_)
        parent_.append(child_)  
        g = Goose()
        article = g.extract(link_)
        m = article.cleaned_text
    Answer = re.findall(r'\bHistology\s+([^.]*)',m)  
    print(Answer)

f = search_google("""'Histology'""")

Output: []

Answer 1

It seems your answer variable has incorrect indentation, and your last result has no matches in the cleaned text. This is why your print results in a empty list.

The print command, since it sits outside of the loop only triggers once. And given the final value of Answer has no matches, you are returned an empty list.

Indent the answer variable by 1 and it should output the correct result.

Your regex will also only match the sentence following Histology and not include the word itself. This is due to you specifying a capture group without Histology included. You can resolve this by removing the capturing group.

r'\bHistology\s+[^.]*'

from bs4 import BeautifulSoup
from googlesearch import search 
import requests
from goose3 import Goose
def search_google(query):
    parent_=[]  
    for j in search(query, tld="co.in", num=10, stop=5, pause=2):
        child_=[]
        link_=j
        site_name=link_.split("/")[2]
        child_.append(site_name)
        child_.append(link_)
        parent_.append(child_)  
        g = Goose()
        article = g.extract(link_)
        m = article.cleaned_text
        Answer = re.findall(r'\bHistology\s+[^.]*',m)  
        print(Answer)


f = search_google("""'Histology'""")

To print all results on individual lines you can change print(Answer) to print('\n'.join(Answer))