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My main app is running with Python3

I have a crucial package that I need to install which only support Python2...

I'm running on windows

I thought of maybe setting this package on another virtual environment in addition to a flask server to be used for communication.

Is there another way to pipe messages between apps beside a server?

Is there a better way to go for Python2, Python3 mix?

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  • maybe ask about the packages you're using... there might be alternatives to the package or maybe alternatives to the packages that are forcing you to use python 3 Commented Jun 17, 2018 at 7:56

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6

How about using the subprocess module. You can start the Python 2 program as a subprocess of your Python 3 app. They can communicate via the subprocess PIPE.

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1

Flask is too heavy. Why not use socket and selectors? offical example

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4 Comments

is your answer to this question?
In my opinion, just building a socket for send&receive message is convenient and light way which communicate between Python2 and Python3.
was just confused why you implied OP uses flask
oh, I see in the middle now
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Unfortunately, I got the similar problem lately and would like to share my solution. I used multiprocssing.connection module. The default pickling protocol should be changed when sending the data from Python 3 to Python 2. The way to change the default pickling protocol is described in this answer.

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