I want to send a value for "User-agent" while requesting a webpage using Python Requests. I am not sure is if it is okay to send this as a part of the header, as in the code below:

debug = {'verbose': sys.stderr}
user_agent = {'User-agent': 'Mozilla/5.0'}
response  = requests.get(url, headers = user_agent, config=debug)

The debug information isn't showing the headers being sent during the request.

Is it acceptable to send this information in the header? If not, how can I send it?