How to send a value in a Python file to another Python file

Question

I've been programming in Python recently

I have 2 python file A.py and B.py

in B.py i have the following code

B.py

import A
import ...

async def main():
    cc = 'ethusdt'
    url = f'wss://stream.binance.com:9443/stream?streams={cc}@miniTicker'
    async with websockets.connect(url) as client:
        while True:
            data = json.loads(await client.recv())['data']

            event_time = time.localtime(data['E'] // 1000)
            event_time = f"{event_time.tm_hour}:{event_time.tm_min}:{event_time.tm_sec}"
            date_time = event_time
            price = float(data['c'])
            A.reciv_data(date_time,price))
            
if __name__ == "__main__":
    asyncio.run(main())

A.py


def reciv_data(a,b):
    x=a
    y=b 
    print(x)
    print(y)

Which constantly receives information from the server and prints it

I need B.py information in A.py so that when i run A.py first B.py start running and constantly receive information and in A.py give me to do those calculations Given that the data in B.py is constantly being updated, how can I have this data in A.py ? Thank you for your help

You can try writing data to a file or linux socket, or a normal socket — mousetail
– mousetail, Commented Jun 15, 2022 at 7:38
What data do you need to share between A.py and B.py? Can you add some more detail? I see B.py already imports A.py ... — Joooeey
– Joooeey, Commented Jun 15, 2022 at 7:52

Amiga500 · Accepted Answer · 2022-06-15 07:43:28Z

0

If I understand you right - when you run A.py first, you want to actually get B.py up and running as that is the "starting point" of your data flow?

Suggest modifying A.py like so

def reciv_data(a,b):
    x=a
    y=b 
    print(x)
    print(y)

if __name__ == "__main__":
    subprocess.call('B.py', shell=True)

I don't think you need to worry about pipes etc here. But could be wrong on that.

answered Jun 15, 2022 at 7:43

Amiga500

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