Numpy for Android using kivy

[Lorenz Jung]

Hi all,

I am developing an application for Android using kivy. Since I have to do some audio-processing, I would like to use scipy and numpy.

On my Mac everything works fine, I can use the numpy functions. So I created an apk with buildozer. When I try to open the application with my android device, it crashes. The log file says:

ImportError: No module named numpy

...

Python for android ended.

Is there a possibility to use the numpy and scipy module under android? I think there are some "recipes" (.sh files), but I don't know what exactly to do with them.

I am thankful for any hints.

Regards

Lorenz

[Andrei Sima]

https://mail.google.com/mail/u/0/#inbox/148e061eff7773f1

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[Alexander Taylor]

Just add numpy to your requirements line in buildozer, or as a module in the distribute.sh stage of python-for-android.

Scipy is not supported.

[Lorenz Jung]

Thanks for the hint.

Do I understand it right, I have to modify the buildozer .spec file like that:

# (list) Application requirements

requirements = kivy,numpy

I did that, but when I run bulldozer I get the error:

# Command failed: ./distribute.sh -m "kivy numpy" -d "version"

[Lorenz Jung]

I'm sorry that I have to ask again, but I'm somehow stuck here. Do you have any idea what I'm doing wrong?

[Roger Erens]

Hi Lorenz,

can you show us some more log lines before the error message?

I'm having an issue that involves a nearly identical error message. (and kinda stuck, too).

Roger

Op woensdag 8 oktober 2014 18:09:47 UTC+2 schreef Lorenz Jung:

[Lorenz Jung]

Well, the last message before the error message is:

     #error No long double representation defined

      ^

error: Command "arm-linux-androideabi-gcc -DANDROID -mandroid -fomit-frame-pointer --sysroot /Users/lorenzjung/.buildozer/android/platform/android-ndk-r9c/platforms/android-14/arch-arm -DNDEBUG -DANDROID -mandroid -fomit-frame-pointer --sysroot /Users/lorenzjung/.buildozer/android/platform/android-ndk-r9c/platforms/android-14/arch-arm -Inumpy/core/include -Ibuild/src.macosx-10.4-x86_64-2.7/numpy/core/include/numpy -Inumpy/core/src/private -Inumpy/core/src -Inumpy/core -Inumpy/core/src/npymath -Inumpy/core/src/multiarray -Inumpy/core/src/umath -Inumpy/core/src/npysort -Inumpy/core/include -I/Users/lorenzjung/Desktop/number/.buildozer/android/platform/python-for-android/build/python-install/include/python2.7 -Ibuild/src.macosx-10.4-x86_64-2.7/numpy/core/src/multiarray -Ibuild/src.macosx-10.4-x86_64-2.7/numpy/core/src/umath -c build/src.macosx-10.4-x86_64-2.7/numpy/core/src/npymath/npy_math.c -o build/temp.macosx-10.4-x86_64-2.7/build/src.macosx-10.4-x86_64-2.7/numpy/core/src/npymath/npy_math.o" failed with exit status 1

Maybe thats revealing to anyone?

[Lorenz Jung]

Tried it again under Linux, it worked there...thanks guys.

[William Hunter Knight]

Hello, I am having the exact same issue, could you explain what you mean by "Tried it again under Linux"? Does this mean you transferred the entire build process to a Linux machine and started over? Is there any way to complete this process on a Mac?

[Lorenz Jung]

Hi,

yes, I did the build process on a Linux virtual machine. Here you find instruction for setting up the VM:

http://kivy.org/docs/guide/packaging-android-vm.html
I didn't try it on a Mac since then, so I can't help you with that - sorry.

Lorenz

[Joel Schnall]

Any progress?  I'm still seeing the following on Mac OS:

#error No long double representation defined

[romanog_dev]

Hi all,

anybody figured how to fix this on Mac?

[Alexander Taylor]

This issue is very old, and the toolchain has been completely rewritten
since then. numpy should work when built from OS X, if it doesn't then
please start a new email thread giving the full build info and error
log, using the new python-for-android toolchain (if using buildozer, use
`buildozer android_new debug` rather than `buildozer android debug`).

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