Error: TypeError: must be str, not NoneType while Scrapping list Links from website using BeautifulS-CodePudding

I want to scrap https://ens.dk/en/our-services/oil-and-gas-related-data/monthly-and-yearly-production this website. there are 2 set of links SI units and Oil Field units

I have tried to scrap the list of links form SI units and created function called get_gas_links

import io
import requests
import pandas as pd
from bs4 import BeautifulSoup as bs, SoupStrainer
import re

url = "https://ens.dk/en/our-services/oil-and-gas-related-data/monthly-and-yearly-production"

first_page = requests.get(url)
soup = bs(first_page.content)

def pasrse_page(link):
print(link)
df = pd.read_html(link, skiprows=1, headers=1)
return df

def get_gas_links():
glinks=[]
gas_links = soup.find_all("a", href = re.compile("si.htm"))

for i in gas_links:
    glinks.append("https://ens.dk/"   i.get("herf"))
return glinks

get_gas_links()

Main motive to scrap 3 tables from every link however before scrapping table i am trying to scrap list of links

but it shows error : TypeError: must be str, not NoneType error_image

CodePudding user response：

You are using wrong regex in a wrong way. That's why soup can not find any links that fulfills the criteria. You can check the following source and validate the the extracted_link however you want.

def get_gas_links():
    glinks=[]
    gas_links = soup.find('table').find_all('a')
    for i in gas_links:
        extracted_link = i['href']
        #you can validate the extracted link however you want
        glinks.append("https://ens.dk/"   extracted_link)
    return glinks