How to reduce exe size of kivy app using kivymd, opencv and numpy?

[Wim van de Brug]

Hi, 

I have a kivy windows desktop application which makes use of kivyMD, opencv and numpy (as major modules in terms of size).

The application (ngassist.exe)  is built using PyInstaller and generated in a distributable installer package (.exe) using InnoSetup.

When started ngassist takes around 95MB of memory which seems pretty much taking the relatively small functionality into account. Looking at the distribution set produced with PyInstaller the following packages consume quite some resources (see full list below):

numpy: 31 MB

OpenCV: 10 MB

Microsoft stuff: 9 MB

Kivy: 6 MB

svml_dispmd.dll: 10 MB

I tried to keep the imports as concise as possible by only using the named classes according to: from a import x,y,z

Only for numpy, ctypes, win32con, kivy and kivymd I used the full import.

In PyInstaller my excludes are: excludes = ['Tkinter', '_tkinter', 'twisted', 'pygments', 'gen_pkglist', 'docutils']

and I exclude anything from the Windows system dir using:

        a.binaries = [x for x in a.binaries if not os.path.dirname(x[1]).startswith("C:\\Windows\\system32")]

Is it possible to reduce the size of this app further, for example by excluding more modules in PyInstaller? However, I do not know what further can be excluded. Also I tried to use tinynumpy instead of numpy but that conflicts with OpenCV as this requires numpy.

Thanks for sharing your expertise in advance,

Wim

Full list of PyInstaller result:

_bsddb.pyd	1.106.432
_ctypes.pyd	91.648
_elementtree.pyd	143.360
_hashlib.pyd	1.016.832
_multiprocessing.pyd	27.648
_socket.pyd	46.592
_ssl.pyd	1.411.072
_testcapi.pyd	41.984
_win32sysloader.pyd	8.192
bz2.pyd	71.168
cv2.pyd	10.836.480
glew32.dll	656.441
kivy._clock.pyd	179.200
kivy._event.pyd	231.424
kivy.core.audio.audio_sdl2.pyd	132.608
kivy.core.clipboard._clipboard_sdl2.pyd	22.016
kivy.core.image._img_sdl2.pyd	57.344
kivy.core.text._text_sdl2.pyd	71.168
kivy.core.text.text_layout.pyd	135.168
kivy.core.window._window_sdl2.pyd	108.544
kivy.graphics.buffer.pyd	29.696
kivy.graphics.cgl.pyd	115.200
kivy.graphics.cgl_backend.cgl_debug.pyd	220.160
kivy.graphics.cgl_backend.cgl_gl.pyd	31.232
kivy.graphics.cgl_backend.cgl_glew.pyd	40.448
kivy.graphics.cgl_backend.cgl_mock.pyd	23.040
kivy.graphics.cgl_backend.cgl_sdl2.pyd	26.112
kivy.graphics.compiler.pyd	56.320
kivy.graphics.context.pyd	159.744
kivy.graphics.context_instructions.pyd	373.248
kivy.graphics.fbo.pyd	134.144
kivy.graphics.gl_instructions.pyd	91.136
kivy.graphics.instructions.pyd	173.568
kivy.graphics.opengl.pyd	414.720
kivy.graphics.opengl_utils.pyd	81.920
kivy.graphics.scissor_instructions.pyd	128.000
kivy.graphics.shader.pyd	186.880
kivy.graphics.stencil_instructions.pyd	111.616
kivy.graphics.svg.pyd	555.008
kivy.graphics.tesselator.pyd	186.880
kivy.graphics.texture.pyd	398.848
kivy.graphics.transformation.pyd	126.976
kivy.graphics.vbo.pyd	80.896
kivy.graphics.vertex.pyd	38.912
kivy.graphics.vertex_instructions.pyd	643.584
kivy.lib.gstplayer._gstplayer.pyd	70.656
kivy.properties.pyd	477.696
kivy.weakproxy.pyd	133.632	6.047.744
libbz2-1.dll	76.571
libFLAC-8.dll	387.072
libfreetype-6.dll	2.644.976
libgcc_s_dw2-1.dll	119.988
libifcoremd.dll	1.172.632
libifportmd.dll	273.560
libiomp5md.dll	1.048.216
libiompstubs5md.dll	81.048
libjpeg-9.dll	224.256
libmmd.dll	4.130.968
libmodplug-1.dll	380.416
libmpg123-0.dll	339.456
libogg-0.dll	47.104
libpng16-16.dll	202.752
libtiff-5.dll	447.488
libvorbis-0.dll	196.608
libvorbisfile-3.dll	63.488
libwebp-7.dll	416.256
libwinpthread-1.dll	65.181
LICENSE.FLAC.txt	1.649
LICENSE.freetype.txt	7.033
LICENSE.jpeg.txt	3.148
LICENSE.modplug.txt	59
LICENSE.mpg123.txt	41.490
LICENSE.ogg-vorbis.txt	1.625
LICENSE.png.txt	5.245
LICENSE.tiff.txt	1.294
LICENSE.webp.txt	1.653
LICENSE.zlib.txt	1.689
mfc90.dll	3.766.600
mfc90u.dll	3.781.960
mfcm90.dll	59.904
mfcm90u.dll	59.904
Microsoft.VC90.CRT.manifest	1.050
Microsoft.VC90.MFC.manifest	1.139
msvcm90.dll	225.280
msvcp90.dll	570.512
msvcr90.dll	653.968	9.120.317
ngassist.exe	6.528.928
ngassist.exe.manifest	1.013
numpy.core.multiarray.pyd	6.794.240
numpy.core.umath.pyd	681.472
numpy.fft.fftpack_lite.pyd	66.048
numpy.linalg._umath_linalg.pyd	18.505.728
numpy.linalg.lapack_lite.pyd	4.399.104
numpy.random.mtrand.pyd	657.920	31.104.512
PIL._imaging.pyd	1.091.072
PIL._imagingft.pyd	475.648
PIL._imagingtk.pyd	9.216
PIL._webp.pyd	424.448
psutil._psutil_windows.pyd	50.176
pyexpat.pyd	144.384
python27.dll	2.646.016
pythoncom27.dll	397.824
pywintypes27.dll	110.592
SDL2.dll	1.042.944
SDL2_image.dll	138.752
SDL2_mixer.dll	139.264
SDL2_ttf.dll	168.692
sdl2-config	1.377
select.pyd	10.240
svml_dispmd.dll	10.497.688
tbb.dll	248.832
unicodedata.pyd	687.104
win32api.pyd	100.864
win32com.shell.shell.pyd	381.952
win32file.pyd	119.808
win32gui.pyd	167.936
win32pdh.pyd	25.600
win32pipe.pyd	24.064
win32print.pyd	52.736
win32process.pyd	36.864
win32trace.pyd	15.872
win32ui.pyd	779.776
win32wnet.pyd	25.088
zlib1.dll	128.000