what is the simplest code for async requests?

[saintthor]

i am uploading a file as:

with file( ... ) as f:
response = requests.post( addr, data = {...}, files = { 'file': f } )

how to make it aysnc? just like:

with file( ... ) as f:
response = yield something( addr, data = {...}, files = { 'file': f } )