How to read RSA private key in Java from string created in Python?

I have generated RSA public and private keys in my python app. I want to encrypt some string in python, send it to java app and decrypt it. How to do that? I've tried few methods described in here but I can't make it work:

• https://stackoverflow.com/a/19387517/3626048

• Getting RSA private key from PEM BASE64 Encoded private key file

• Key from String in Java RSA

This is my python code:

from Crypto.PublicKey import RSA

new_key = RSA.generate(2048, e=65537)
public_key = new_key.publickey().exportKey("PEM")
private_key = new_key.exportKey("PEM")

def encrypt(string, public_key):
  encrypted = public_key.encrypt(bytes(string, "latin1"), 255)
  date = encrypted[0]
  date = base64.b64encode(date)
  return date

Decryption in python works:

def decrypt(string, private_key):
  raw_cipher_data = base64.b64decode(string)
  string  = private_key.decrypt(raw_cipher_data)
  string = string.decode("latin1")
  return string

where I create private_key object like this:

private_key_str = "-----BEGIN RSA PRIVATE KEY-----\nMIIE+IB [.....] bcy/VVp63YA==\n-----END RSA PRIVATE KEY-----"
private_key = RSA.importKey(private_key_str)