import - Python file structure about importing from other directories

Sunday, 19 June 2016

I have problems with importing some functions in the file stored in other directories and importing random method from Crypto library.

I installed Python34 and PyCrypto 2.6.1 in window 7.

Here is my file structure

my_project

       /dh

           /__pycache__

           /__init__.py

       ./lib

           /__init__.py

           /helpers.py

In the /dh/__init__.py file
I have three import statements as follows

from Crypto.Hash import SHA256 -> it is fine

from Crypto.Random import random -> gives me error "from Crypto.Random import OSRNG ImportError: cannot import name 'OSRNG' "

from lib.helpers import read_hex --> gives me error "from lib.helpers import read_hex ImportError: No module named 'lib' "

I found out that there is not such file or folder OSRNG in Python34/Lib/sit-packages/Crypto/Random/

How can I fix these two errors?

Thanks guys

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