Problem in decryption using python which cipher text is encrypted in c++

[rsalz@xxxxxxxxxx (Salz, Rich)]

> Then i am passing this cipher text to my another end which is using a
> python(PyCrypto library) code to decrypt a cipher text using same Key and
> IV.

The IV, key, and ciphertext are all binary arrays of bytes.  Not C (or ASCII or UTF8 or anything) strings.  You will have to convert back/and forth.