PyInstaller not correctly importing pycrypto... sometimes

I'm packaging a project with PyInstaller on different ubuntu machines. On some of them, when executing the generated project, it throws this error:

File "~/PyInstaller-2.1/proj/build/proj/out00-PYZ.pyz/Crypto.Random", line 28, in ImportError: cannot import name OSRNG

However the import works perfectly ok in python console and I can execute the project without packaging it.

I've tried uninstalling and reinstalling pycrypto without success, I've also tried adding a specific

from Crypto.Random import OSRNG

to the main file just so PyInstaller would pick it up.

Solution

I've solved it by adding Crypto directory tree to spec file

I get the path with this function:

def get_crypto_path():
    '''Auto import sometimes fails on linux'''
    import Crypto
    crypto_path = Crypto.__path__[0]
    return crypto_path

And then substitute in spec file:

dict_tree = Tree('CRYPTO_PATH', prefix='Crypto', excludes=["*.pyc"])
a.datas += dict_tree