How to print iterations per second?

I have a small Python script which sends POST requests to a server and gets their response.

It iterates 10000 times, and I managed to print the current progress in command prompt using:

code=current_requestnumber
print('{0}/{1}'.format(str(code),"10000"),end="\r")

at the end of each loop.

Because this involves interaction with a webserver, I would like to show the current average speed next to this too (updated like every 2 seconds).

An example at the bottom of the command prompt would then be like this:

(1245/10000), 6.3 requests/second

How do I achieve this?

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