search

beeware / Python-Apple-support

A meta-package for building a version of Python that can be embedded into a macOS, iOS, tvOS or watchOS project.
MIT License
1.12k stars 164 forks source link

How could I integrate numpy、tensorflow and opencv into sdk? #90

Closed fisherjoe closed 4 years ago

fisherjoe commented 4 years ago

There is some python code in my python file, such as: import cv2 import numpy as np import tensorflow as tf

How could I integrate numpy、tensorflow and opencv into sdk? Appreciate!

freakboy3742 commented 4 years ago

Unfortunately - not easily.

For the moment at least, using Python modules with C components isn't a support configuration; it can be made to work, but it's not something we're actively supporting.

We've got build instructions for numpy; however, they aren't especially easy to use.

A big part of the problem is that the iOS build currently operates with fully static linked libraries - there's no dynamic loading of modules. This is historically because iOS didn't support dynamic linking; this limitation no longer exists, but we haven't updated the iOS patch to allow dynamic linking.

ColdGrub1384 commented 4 years ago

I have prebuilt frameworks for a lot of C extensions here: https://github.com/ColdGrub1384/Pyto. Feel free to use them.

ColdGrub1384 commented 4 years ago

OpenCV is easy to include in an iOS app because OpenCV officially supports iOS. We just have to link the OpenCV framework and build the Python C extension (without OpenCV itself, just PyInit_cv2). Also the C extension doesn’t need to be updated, when we want to update OpenCV we just have to update the framework without the C extension. Here is the C extension object of OpenCV built for arm64: https://github.com/ColdGrub1384/opencv-contrib-ios.