Finding web page elements with Selenium

Imagine my joy on seeing Mosh describe in the Selenium module the coding for EXACTLY something I want to automate in the real world. I want to open a web page and push a button. Simple?
The code I have is:
from selenium import webdriver
import time
browser = webdriver.Chrome()
browser.get(“Compass Scoring”)
buttonlink = browser.find_element_by_link_text(“Export to Excel”)

I put the time delay in to allow the page to load. Not sure if that helps or not. I do intend to learn more about html but it would be really good if I could get this to work now. I have tried various versions of the browser_find_element… methods but have no joy getting this to work and I feel like I am in the dark and just guessing. Can anyone help me with this one?
Thanks Peter

I seem to have resolved the problem with this line of code:

buttonlink = browser.find_element_by_tag_name(“span”)

But I do get this message in the terminal: “USB: Failed to read descriptor from node connection: A device attached to the system is not functioning. (0x1F)”

I googled it and the advise seems to be to ignore it. Does anyone here have advise to add?

Is there any difference between http and https protocol web pages with Selenium ?