[Python] Pyinstaller numpy "Intel MKL FATAL ERROR: Cannot load mkl_intel_thread.dll"

I'm new with python apps. I'm trying to build my python GUI app with pyinstaller. My app depends on the following packages: PyQt4, numpy, pyqtgraph, h5py. I'm working with WinPython-32bit-3.4.4.1.

I build the app with this command:

pyinstaller --hidden-import=h5py.defs --hidden-import=h5py.utils --hidden-import=h5py.h5ac --hidden-import=h5py._proxy VOGE.py


I launch my app with the exe file in the dist directory created by pyinstaller and it seems work fine until the program call numpy and crash with this error:

Intel MKL FATAL ERROR: Cannot load mkl_intel_thread.dll

The mkl_intel_thread.dll is not present in the software directory; but with the file copied in the root dir of the program I got the same error

Thanks for your help

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