How to click on the download button using Selenium and Python

I am trying to download an excel file using Selenium Python using the below code:

download=driver.find_element_by_css_selector("span[data-reactid='.0.1.0.0.1.1.1.0.1.0.1'>Download Orders]")

The element of the download button look like:

The piece of code above isnt working. Can someone help?