[Python] Template Literals Not Being read properly in Python and returning: Errno 22, Invalid...

I am writing a very simple function in Python where the user calls the function with one paramater: website, and the function simply makes an empty markdown file with the website name, for example www.example.com.md.

For this purpose I am trying to use a template literal using f'', however Python returns invalid argument when trying to use a template literal. When I hardcode the website 'www.example.com' it works fine.

So how do you get template strings to work in Python without returning an error?

def fileCreator(website):
outputFile = open(f'{website}.md', 'w')

print(outputFile)

fileCreator('https://www.example.com/')

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