import requests
from bs4 import BeautifulSoup
session = requests.session()
session.headers.update({'User-Agent':'Mozilla/5.0 (Unknown; Linux) AppleWebKit/538.1 (KHTML, like Gecko) Chrome/v1.0.0 Safari/538.1'})
res = session.get('https://www.investing.com/currencies/eur-usd')
soup = BeautifulSoup(res.text, 'html.parser')
print(soup.find('span', attrs={'id': 'last_last'}).text.strip())