产生Nonetype错误 - Python

Question

从get_page_data功能转到for循环以提取商家名称，地址等时，出现Nonetype错误的问题。我现在知道这意味着值None正在传递到for循环中，但我不确定导致此错误的是什么：\ n AttributeError: 'NoneType' object has no attribute 'text'

#!/opt/local/bin/python
import requests
import re
from bs4 import BeautifulSoup
import csv

#Read csv
with open ("gyms4.csv") as file:
    reader = csv.reader(file)
    csvfilelist = [row[0] for row in reader]

#Get data from each url
def get_page_data():
    for page_data in csvfilelist:
        r = requests.get(page_data.strip())
        soup = BeautifulSoup(r.text, 'html.parser')
        yield soup

#Complete work on data
for page in get_page_data():
        name = page.find("span",{"class":"wlt_shortcode_TITLE"}).text
        address = page.find("span",{"class":"wlt_shortcode_map_location"}).text
        phoneNum = page.find("span",{"class":"wlt_shortcode_phoneNum"}).text
        email = page.find("span",{"class":"wlt_shortcode_EMAIL"}).text

        th = pages.find('b',text="Category")
        td = th.findNext()
        for link in td.findAll('a',href=True):
            match = re.search(r'http://(\w+).(\w+).(\w+)', link.text)
            if match:
                web_address = link.text

gyms = [name,address,phoneNum,email,web_address]
gyms.append(gyms)

#Saving specific listing data to csv
with open ("xgyms.csv", "w") as file:
    writer = csv.writer(file)
    for row in gyms:
        writer.writerow([row])