h5py for Python 3.9 or later

[mhsmith]

Originally posted by @githubweather in #823 (comment)

I have fixed a few things and now have an issue regarding building h5py for cp310. But first, to clarify, I am using the original build-wheel.py and removed the show.* file, which looked like a patch file, from my fork. Sorry for that confusion. I am now building a simpler APK, and am now able to see the right numpy version 1.25.0. I had to add a wheel for hdf5 and now Android Studio execution is indicating 'No module named h5py' as seen in this log:

show.h5py.logcat.log

As such, I am trying to build a wheel file for h5py and got this error message:

show.build-wheel.h5py.log
Please let me know what this error msg means and how to approach a fix. Again, the meta.yaml files are not totally clear to me. I updated my fork to include the h5py meta.yaml I am trying to use.

If it helps, this is my current build.gradle file --

plugins {
    id 'com.android.application'
    id 'com.chaquo.python'
}

android {
    compileSdk 33

    defaultConfig {
        applicationId "com.example.pythoncalledfromandroidstudio"
        minSdk 21
        targetSdk 32
        versionCode 1
        versionName "1.0"

        python{
   //       version "3.8"
            version "3.10"
       //     version"3.11" -- this version fails gradle syncing so stick with v3.10
       //testing     version "3.9"
       //     version "3.8"
            pip {
            //    options "--extra-index-url","file:///Users/skirby/TEMPY/home/skirby/WHEEL-TEST/chaquopy/server/pypi/dist/"
        //       install "numpy"
        //        install "hdf5"
         //       install "h5py"
                install "/Users/skirby/TEMPY/home/skirby/WHEEL-TEST/chaquopy/server/pypi/dist/chaquopy-netcdf4/chaquopy_netcdf4-4.9.2-1-py3-none-android_21_x86_64.whl"
                install "/Users/skirby/TEMPY/home/skirby/WHEEL-TEST/chaquopy/server/pypi/dist/cftime/cftime-1.6.2-0-cp310-cp310-android_21_x86_64.whl"
                install "/Users/skirby/TEMPY/home/skirby/WHEEL-TEST/chaquopy/server/pypi/dist/netcdf4/netCDF4-1.6.4-0-cp310-cp310-android_21_x86_64.whl"
    //need cp310           install "/Users/skirby/TEMPY/home/skirby/WHEEL-TEST/chaquopy/server/pypi/dist/h5py/h5py-2.10.0-1-cp38-cp38-android_21_x86_64.whl"
                install "/Users/skirby/TEMPY/home/skirby/WHEEL-TEST/chaquopy/server/pypi/dist/numpy/numpy-1.25.0-0-cp310-cp310-android_21_x86_64.whl"
                install "/Users/skirby/TEMPY/home/skirby/WHEEL-TEST/chaquopy/server/pypi/dist/chaquopy-hdf5/chaquopy_hdf5-1.10.2-1-py3-none-android_21_x86_64.whl"
            }
        }

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
        ndk {
       //    abiFilters "armeabi-v7a", "arm64-v8a", "x86", "x86_64"
       //    abiFilters "armeabi-v7a"
       //     abiFilters "x86"
           abiFilters "x86_64"
       //     abiFilters "arm64-v8a"
        }
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
}

dependencies {
    implementation 'androidx.appcompat:appcompat:1.6.0'
    implementation 'com.google.android.material:material:1.8.0'
    implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
    testImplementation 'junit:junit:4.13.2'
    androidTestImplementation 'androidx.test.ext:junit:1.1.5'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
}

[mhsmith]

Originally posted by @githubweather in #823 (comment)

I have updated the h5py meta.yaml file in my fork, so that cython is set to 0.29.36, the latest version available. Also, I set chaquopy-hdf5 to version 1.10.2 and numpy to 1.23.3. These last 2 settings I based on what packages I saw available at https://chaquo.com/pypi-7.0. build-wheel is finding chaquopy-hdf5 version 1.10.2, but is not finding numpy version 1.23.3. Where does build-wheel.py look for the packages in the host section of meta.yaml? I'm not clear on why build-wheel successfully finds chaquopy-hdf5 1.10.2 but does not find numpy 1.23.3.

This is the log from my build-wheel.py run to try and produce a wheel file for h5py, that shows what I explain here.

show-h5py.log

I also don't have a handle on the patch file that pre-existed for h5py. Apologize for this many questions.

[mhsmith]

Where does build-wheel.py look for the packages in the host section of meta.yaml?

It looks in the dist directory of your local repository. Simply download the host requirements from chaquo.com into a subdirectory of dist. There's no need to build them all yourself.

I see you've also updated your meta.yaml to change the h5py version from 2.10.0 to 3.9.0. Do you actually need the new version? If all you're trying to achieve is getting a build that works with Python 3.10, I suggest you leave the version number alone for now.

[mhsmith]

If anyone else needs this package for Python 3.9 or later, please click the thumbs up button above, and subscribe to this issue to receive updates.