How to avoid ModuleNotFoundError: No module named 'pandas' in VSCode - pandas

Question

I'm trying to run from a tutorial in VSCode and keep getting errors about no pandas module but I know it is installed.
I've tried using "select interpreter" to swap between versions of python but then I have issues with requests module. The code below does work if I comment out the pandas module but I can't understand why this code doesn't work.
I tried using pip3 install pandas but the terminal tells me it is already installed.
The code is:
import requests
from bs4 import BeautifulSoup
import time
import datetime
import smtplib
import csv
#import pandas as pd
def check_price():
URL = "https://www.amazon.co.uk/Funny-Data-T-shirt-Mining-T-Shirt/dp/B0B68TSGCR/ref=sr_1_1?keywords=funny+data+mining&qid=1560000000&s=gateway&sr=8-1"
html = requests.get(URL).text
headers = {"User-Agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 Safari/537.36"}
page = requests.get(URL, headers=headers)
soup1 = BeautifulSoup(page.content, "html.parser")
soup2 = BeautifulSoup(soup1.prettify(), "html.parser")
title = soup2.find(id="productTitle").get_text().strip()
price_whole = soup2.find(attrs= {"class": "a-price-whole"}).get_text()
price_fraction = soup2.find(attrs= {"class": "a-price-fraction"}).get_text()
price = (f"{price_whole.split()[0]}.{price_fraction.split()[0]}")
today = datetime.date.today()
header = ['Title', 'Price', 'Date']
data = [title, price, today]
with open("amazonscraper2.csv", "a+", newline="", encoding="utf-8") as f:
writer = csv.writer(f)
writer.writerow(header)
writer.writerow(data)
while(True):
check_price()
time.sleep(5)
print("running")
#df = pd.read_csv("amazonscraper2.csv")
#print(df)